Thursday, June 30, 2011

Meaner Tougher IMF With Lagarde

Meaner Tougher IMF With Lagarde

Los Alamos Takes Supercomputers Offline

Los Alamos Takes Supercomputers Offline

Revealed: British government's plan to play down FukushimaInternal emails seen by Guardian show PR campaign was launched to protect UK nuclear plans after tsunami in Japan

Revealed: British government's plan to play down FukushimaInternal emails seen by Guardian show PR campaign was launched to protect UK nuclear plans after tsunami in Japan

Smart Meters: We can monitor everything you do in your home (Video)

Smart Meters: We can monitor everything you do in your home (Video)





Marti Oakley

Activist Post

June 29, 2011



Although Smart Meters are promoted as energy efficiency components, the actual intent of these meters is to track your use of energy in real time across every 24hr. period, which will allow the provider to bill you for that period at the highest energy rate for the day.



They have another purpose: thanks to Smart Meters, every appliance in your home will be monitored.



As you will be rationed only so much energy for any 24 hr. period, opening and closing your refridgerator too many times during the daily billing cycle can cause your power to be disrupted. Your use of lights, appliances and even your time on the Net will be charged against your daily allowance of power.



Have you seen the ads for the appliances that call for help when they need repairs? Like I need my stove sending out an SOS and having a “repair” man show up because the back burner made an appointment. I don’t want anything in my house that is sending and retrieving messages without my knowledge or consent. And what if the repair man shows up and you don’t want the appliance fixed at that time? Ummmm. No one seems to have the answer to this.



Smart Meters are not about energy efficiency or any such nonsense. They are a real-time tracking device that monitors your household and what you do in it as part of the total surveillance system being put in place by the government. This is just another invasion of privacy. Your individual power supply can be disrupted at any time, as well as your whole neighborhood, community or state.



Welcome to Smart Grid!



For more information on Smart Meters go to: www.W4AR.com

Thursday, June 30, 2011

Thursday, June 30, 2011


Japan's Kan Administration to Formally Push for Numbering the Citizens in a Program Called "My Number"



Never waste a good crisis. What better crisis than the March 11 triple-whammy of earthquake, tsunami, and a Level 7 nuke plant accident?



Japan's embattled Prime Minister Naoto Kan and his administration have formally decided on their plan to assign a unique number for every single Japanese citizen so that they (the government) can smoothly manage and handle important individual information like income, public insurance, medical care, pension, and tax.



From the Asahi article below, they will also get information about bank accounts of the citizens.



It will be sold as a good, convenient thing in Japan, along with "large scale" wind farms and solar farms (key word is "large-scale"), "smart grid", and a host of other government initiatives (like "eco-towns" to be built by shaving off hills and mountains) after the quake/tsunami/nuke accident. More power and control to the government. Will the Japanese buy it?



From Asahi Shinbun (6/30/2011):





菅政権の政府・与党社会保障改革検討本部(本部長・菅直人首相)は30日、国民一人ひとりに番号を割りふって所得や社会保険などの個人情報を管理す る「社会保障・税の番号制度」の大綱を正式決定した。番号の名称は「マイナンバー」で、2015年1月の導入を目指し、今年秋の臨時国会にも法案を提出す る。



The Kan Administration has formally decided on the framework to introduce "the numbering system for social security and tax", in which a unique number is assigned to each Japanese citizens to manage income and public insurance. The number will be called "My Number". The administration aims at introducing this numbering system in January 2015, and will submit the legislation during the extraordinary session of the Diet in autumn.





 共通番号は、消費税率を引き上げた後の低所得者対策に所得の正確な把握が不可欠になるとして、菅政権が「税と社会保障の一体改革」と共に制度設計してき た。一つの番号で様々な情報を結びつけることで、課税や給付の漏れを防いで公平感を高めたり、住民票など手続き時の書類を減らしたりする狙いがある。





The Kan Administration has been designing the system along with the tax and social security reform, in order to better assess the impact on low-income households after the consumption tax rate is raised. By tying various information to one common number for a citizen, the government can increase the sense of fairness among citizens in taxation and distribution of public benefits. The number may be used to reduce the paperwork when registering the domicile.





 共通番号を使うのは、年金、医療、介護保険、福祉、労働保険、税務の6分野。このほか東日本大震災のような大災害時には、預金の払い戻しや保険金支払いなどにも使えるようにする。18年をめどに利用分野の拡大も検討する。





The numbers will be used in pension, medical care, assisted living care, welfare, workers insurance, and tax. It will be also used for deposit withdrawal and insurance payout at the time of a disaster like the March 11 earthquake/tsunami. The government will consider expansion of the use of the numbers by 2018.



OK.. Benefit for the citizen: sense of fairness, ability to withdraw money from the bank when disaster strikes. Benefit for the government: information on bank accounts, income, tax, where the citizen lives.



They don't even bother to translate "My Number", pronounced in Japanese as "ma-i nan-bah" into Japanese. I'm not sure whether all Japanese know what "my" is and what "number" is, but that's precisely the point, probably. If you tell them exactly what it is in Japanese, there may be some who will say "Wait a minute...".



"Oh don't worry the government already has our numbers anyway, just the matter of putting all those numbers together, what's the big deal? Nothing is private any more in this day and age" would be the comment from the defenders of "My Number", I am assuming.

Treatments for Radiation Poisoning

Tuesday, June 28, 2011

Treatments for Radiation Poisoning









You've heard that potassium iodide helps protect against some types of radiation.



In fact, it only protects against iodine 131 poisoning (and, if not needed, may cause severe adverse reactions in some individuals).



But there are actually different treatments for different types of radiation.



The following chart provided by the Food and Drug Administration summarizes the treatments for exposure to various radioactive elements (click chart for better image):







Prussian blue is taken to minimize damage from cesium. As FDA notes:





The FDA has determined that the 500 mg Prussian blue capsules, when manufactured under the conditions of an approved New Drug Application (NDA), can be found safe and effective for the treatment of known or suspected internal contamination with radioactive cesium, radioactive thallium, or non-radioactive thallium. This decision is based on a careful review of published literature articles containing reports, data, and experiences of people who were exposed to high levels of thallium or cesium-137 and were treated effectively with Prussian blue.



***



Prussian blue works using a mechanism known as ion exchange. Cesium or thallium that have been absorbed into the body are removed by the liver and passed into the intestine and are then re-absorbed into the body (entero-hepatic circulation). Prussian blue works by trapping thallium and cesium in the intestine, so that they can be passed out of the body in the stool rather than be re-absorbed. If persons are exposed to radioactive cesium, radioactive thallium, or non-radioactive thallium, taking Prussian blue may reduce the risk of death and major illness from radiation or poisoning.





And see this.



DTPA is taken to reduce damage from plutonium, as well as americium and curium. FDA reports:



The FDA has determined that Ca-DTPA and Zn-DTPA are safe and effective for treating internal contamination with plutonium, americium, or curium. The drugs increase the rate of elimination of these radioactive materials from the body.

Sodium bicarbonate plus diuretics (things which increase urine output) may reduce damage from uranium. FDA notes:



Uranium contamination has been treated with oral sodium bicarbonate, regulated to maintain an alkaline urine pH, and accompanied by diuretics. Oral sodium bicarbonate has not been approved in the United States for this indication.

Sodium bicarbonate is baking soda. While I have no idea whether it is true or not, many alternative people advocate bathing in baking soda after being exposed to uranium.



And see this.



Note: I am not a medical professional and this does not constitute medical or health advice. This is for general informational purposes only. Some or all of the above-described substances may have severe side effects or - if used improperly - may cause more damage than they prevent. Don't take any of these preventatively ... only if exposed to high levels of radiation. Consult your doctor before taking any of the above medicines.

1 comments:

Advocate said...

Check out 'healing clay' on the search engines. Bentonite clay has been used as a toxin removal agent for many, many years.

Vaccines to be added to Yogurt

http://preventdisease.com/news/11/063011_edible_vaccines.shtml

Texas Vote to Keep Incandescent Bulbs

Texas votes to keep incandescent bulbs

A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia.

J Vis Exp. 2011 Jun 15;(52). pii: 2534. doi: 10.3791/2534.


A Strategy to Identify de Novo Mutations in Common Disorders such as Autism and Schizophrenia.

Julie G, Hamdan FF, Rouleau GA.

SourceCentre of Excellence in Neuromics, CHUM Research Center and the Department of Medicine, Universite de Montreal.



Abstract

There are several lines of evidence supporting the role of de novo mutations as a mechanism for common disorders, such as autism and schizophrenia. First, the de novo mutation rate in humans is relatively high, so new mutations are generated at a high frequency in the population. However, de novo mutations have not been reported in most common diseases. Mutations in genes leading to severe diseases where there is a strong negative selection against the phenotype, such as lethality in embryonic stages or reduced reproductive fitness, will not be transmitted to multiple family members, and therefore will not be detected by linkage gene mapping or association studies. The observation of very high concordance in monozygotic twins and very low concordance in dizygotic twins also strongly supports the hypothesis that a significant fraction of cases may result from new mutations. Such is the case for diseases such as autism and schizophrenia. Second, despite reduced reproductive fitness(1) and extremely variable environmental factors, the incidence of some diseases is maintained worldwide at a relatively high and constant rate. This is the case for autism and schizophrenia, with an incidence of approximately 1% worldwide. Mutational load can be thought of as a balance between selection for or against a deleterious mutation and its production by de novo mutation. Lower rates of reproduction constitute a negative selection factor that should reduce the number of mutant alleles in the population, ultimately leading to decreased disease prevalence. These selective pressures tend to be of different intensity in different environments. Nonetheless, these severe mental disorders have been maintained at a constant relatively high prevalence in the worldwide population across a wide range of cultures and countries despite a strong negative selection against them(2). This is not what one would predict in diseases with reduced reproductive fitness, unless there was a high new mutation rate. Finally, the effects of paternal age: there is a significantly increased risk of the disease with increasing paternal age, which could result from the age related increase in paternal de novo mutations. This is the case for autism and schizophrenia(3). The male-to-female ratio of mutation rate is estimated at about 4-6:1, presumably due to a higher number of germ-cell divisions with age in males. Therefore, one would predict that de novo mutations would more frequently come from males, particularly older males(4). A high rate of new mutations may in part explain why genetic studies have so far failed to identify many genes predisposing to complexes diseases genes, such as autism and schizophrenia, and why diseases have been identified for a mere 3% of genes in the human genome. Identification for de novo mutations as a cause of a disease requires a targeted molecular approach, which includes studying parents and affected subjects. The process for determining if the genetic basis of a disease may result in part from de novo mutations and the molecular approach to establish this link will be illustrated, using autism and schizophrenia as examples.

Wednesday, June 29, 2011

Radiation in Our Food

Medicine Hunter

Radiation in Our Food

By Chris Kilham



Published June 29, 2011


FoxNews.com







Read more: http://www.foxnews.com/health/2011/06/29/radiation-in-our-food/#ixzz1QjSM1a44

EPA On Radiation Alert As Fires Reach 50 Feet From Los Alamos Nuke Plant

EPA On Radiation Alert As Fires Reach 50 Feet From Los Alamos Nuke Plant






Environmental Protection Agency cannot be trusted to provide accurate information about health threats



Paul Joseph Watson

Prison Planet.com

Wednesday, June 29, 2011



The wildfire that threatens to consume the Los Alamos nuclear lab in New Mexico is now approaching the perimeter of the facility, with the Environmental Protection Agency on radiation alert for the deadly consequences of 20,000 barrels of nuclear waste going up in flames.







Having been miles away from the nuclear lab just yesterday, the fires have now reached to within 50 feet of the facility, with officials fearing a “major calamity” because the nuclear waste is not securely contained in a concrete structure, but is unbelievably stored “in a sort of fabric-type building that a fire could easily consume,” according to former top security official Glen Walp.



“The concern is that these drums will get so hot that they’ll burst. That would put this toxic material into the plume. It’s a concern for everybody,” said Joni Arends, executive director of the Concerned Citizens for Nuclear Safety, an anti-nuclear group.



The EPA has responded by bringing in “air monitors, along with a special airplane that checks for radiation levels,” reports ABC News.



The 95-square-mile fire has turned the city of Los Alamos into a ghost town, with 12,000 residents evacuating on Monday.



The EPA’s trustworthiness on reassuring Americans that there is no danger from radiation released into the atmosphere is likely to be somewhat lessened by what happened following the Fukushima disaster earlier this year.



As the Fukushima radiation plume took just days to arrive in the U.S., instead of advising Americans to take weaker forms of potassium iodine to build up their immunity to certain types of radioactivity, the EPA simply increased the allowable levels of the radioactive isotope iodine-131 by many thousands of times, despite the fact that within just two weeks of the Japanese earthquake and tsunami that crippled the nuclear plant, the amount of radiation released from Fukushima already rivaled that of Chernobyl, the worst nuclear disaster up until that point.



Within weeks of the Fukushima crisis, levels of radioactive Iodine-131 found in rainwater in California, Idaho, Minnesota, Ohio, Pennsylvania and Massachusetts, was already 181 times the U.S. federal standard for drinking water.



(ARTICLE CONTINUES BELOW)







Stock up with Fresh Food that lasts with eFoodsDirect (AD)



However, the EPA reacted by encouraging Americans not to take potassium iodide or any protective measures whatsoever. Indeed, Barack Obama all but insulted Americans who had responded by buying up supplies of potassium iodide pills as a precaution.



It’s little surprise that huge numbers of Americans responded to Fukushima by creating a run on potassium iodide pills and geiger counters. As the sustained cover-up by the Japanese government has once again proven, governments cannot be trusted to tell the truth about public health threats.



Nowhere was this more evident in the case of the EPA than in the days following 9/11, when ground zero workers were told that the air was “safe to breathe,” a contrived cover-up on behalf of the EPA and the White House that led to thousands of crippling illnesses and deaths of firefighters, police and first responders.



Despite official assurances that residents in surrounding areas were safe, the 3 Mile Island accident, which was miniscule compared to Fukushima, also led to a dramatic rise in cancer rates.



Should wildfires consume the nuclear waste stored at Los Alamos, the U.S. government will not be able to protect its citizens. As CNN highlighted during the height of the Fukushima crisis, the federal government has never purchased enough potassium iodide pills to meet that standard.



“There is currently only enough of the medication available for populations living within 10 miles of nuclear reactors in the United States, according to U.S. officials,” stated the report.



*********************



Paul Joseph Watson is the editor and writer for Prison Planet.com. He is the author of Order Out Of Chaos. Watson is also a regular fill-in host for The Alex Jones Show.

Tuesday, June 28, 2011

Smart Meters: We can monitor everything you do in your home

Smart Meters: We can monitor everything you do in your home


June 28, 2011 by ppjg



Marti Oakley (c)copyright 2011



___________________________________________________



Although Smart Meters are promoted as energy efficiency components, the actual intent of these meters is to track your use of energy in real time across every 24hr. period which will allow the provider to bill you for that period at the highest energy rate for the day. They have another purpose.



Thanks to Smart Meters, every appliance in your home will be monitored. As you will be rationed only so much energy for any 24 hr. period, opening and closing your refridgerator too many times during the daily billing cycle can cause your power to be disrupted. Your use of lights, appliances and even your time on the net will be charged against your daily allowance of power.

Nuclear Fireflies

Radioactivity and Food

Subsections

Irradiated foods in EU



--------------------------------------------------------------------------------



Radioactivity and Food

Radioactivity is the property of atomic nucleus to change spontaneously to another nucleus by itself, without the influence from outside, releasing energy in form of particles and/or electromagnetic rays.

The parent nucleus is called the emitting nucleus which changes its atomic number and becomes the nucleus of a different element being called daughter nucleus or decay product.

Ionizing radiation

Ionising radiation is produced by a beam of electrons striking a target, by cosmic radiation, radioactivity and nuclear reactions, which release energetic photons (gamma rays, x-rays) and/or particles. Ionizing radiation penetrates living organisms and alters cells, which then send signals to initiate various defensive responses.

Mass number of an atom

is the sum of neutrons and proton. It is given as a small number high up in front of the symbol of the element.

Atomic number

is the sum of protons of an atom. It is given as a small number down in front of the symbol of the element.

Every atom has a central, positively charged nucleus made of protons and neutrons. Nuclei are unaffected by chemical reactions. Protons and neutrons are collectively referred to as nucleons



Isotopes

Two atoms which have the same number of protons but different numbers of neutrons are called isotopes of each other. Isotopes have identical chemical properties and cannot be separated by chemical methods. The isotopes of hydrogen are:

Hydrogen ( 11H)

Deuterium ( 21D)

Tritium ( 31T)

The particles of the nucleus are held together by one of the four fundamental forces:

Strong interaction, also called nuclear force. This force is very strong.

Electromagnetic force.

Weak interaction.

Gravitational force.

Atomic warfare and atomic bomb tests in Nevada, Bikini and Soviet Union are responsible for high levels of strontium 90 fall out which caused high levels of strontium 90 in Brazil nuts growing in the rain forest of the Amazon region.

Nuclear energy is an important part of electrical power supply. It was considered to be clean energy.The disaster of Harrisburg and Chernobyl have demonstrated the danger of nuclear power stations. The fallout from Chernobyl made the killing and disposal of Norwegian reindeer.

Rising radioactivity of the Arctic region and its food chain is a product of uncontrolled nuclear handling.

The disposal of radioactive waste is unsolved problem for future generations. The salt mine of Gorleben in Germany is unsafe for disposal of nuclear waste.

Contamination of foods and feedstuffs by nuclear accidents

The accident of Chernobyl provided a lot of knowledge on contamination of the food chain. These information can now be applied in the actual Japan nuclear disaster. It is important to avoid milk of cattle which received grass and fodder of the contaminated region. As most of the radioactive particles end up in the ocean it is imperious to avoid sea foods of any kind. Do not drink tap water. More personal protection measures are described below.



The food chain safety will be compromised in the next decades by the situation in Fukushima. Primarily drinking water in Japan and Pacific fish and seafood will bear an increased load of radionuclides.





Japan prohibits the sell of shiitake-mushrooms

[1] In the region of Fukushima shiitake-mushrooms (Lentinus edodes Sing) with high radiation were found. A total of 16 cities and towns are compromised. The ban was imposed on mushrooms cultivated outdoors. Mushrooms grown in greenhouses are safe and may be sold, according to Kyodo News. The local department of health reports a 1,55 times of the maximum permitted content of Iodine 131 and 1,78 times for Caesium in shiitake-mushrooms.



On April 1, shiitake mushrooms from the city Iwaki had a level of radioactive cesium of 890 becquerels per kilogram against the limit of 500 becquerels, reports Kyodo News.

Radionuclides in the food chain

[2]

The exposure may result from direct inhalation of contaminated air or ingestion of contaminated water, or from a less direct pathway, the ingestion of contaminated food products. The exposure may result from direct inhalation of contaminated air or ingestion of contaminated water, or from a less direct pathway, the ingestion of contaminated food products. The the contamination of the milk of the cow is a typical example to the incorporation of radionuclides in the food chain resulting of the ingestion of contaminated pasture, the so called the pasture-cow-milk exposure route.



Mushrooms from Bavaria, Germany, are still contaminated with radiating Caesium from the disaster of Chernobyl. German wild boars even after 25 years after Chernobil disaster are excluded from food market because they exceed the German limit on 600 Becquerel/Kg in meat. Wild boars like mushrooms which are highly contaminated by radionuclides. [3]



The contamination of mushrooms with radionuclides depends on the type of mushroom and on the type of soil they grow on. The Cs-137 nuclides can highly be absorbed from forest soil where it is free available for plant roots. In agricultural areas the radionuclides are tightly bound to soil particles and their absorption is diminished. Sweet chestnuts and birch bolete are plant products with highest contamination. [4]



Schwaiger et al. 2004 report that in 2002, the ingestion dose of radionuclides from the accident of Chernobyle in Austria amounts to 2.24 microSv (adult), or 0.88 microSv (5-year infant) respectively, which is less than 0.5% of the ingestion dose of the first year and amounts to 0.7% of the ingestion dose from natural radionuclides. [5]

Soil type important for prediction of food-chain contamination

[6]

According to Bell and Shaw 2005 initial studies and advices of the UK Ministry of Agriculture, Fisheries and Food, following the Chernobyl accident, were based on agricultural soils, with high clay and low organic matter contents where the radioiodine decayed and the radiocaesium became immobilised by attachment to clay particles. Other soils, low in clay and high in organic matter, such as the wet and acidic uplands, however favour mobility and bioavailability of the radionuclides. Radiocaesium entered the food chain. Sale of sheep had to be banned over areas of upland. Bans will continue in some cases for some years to come.

The authors stress the importance of a fundamental understanding of biogeochemical pathways in different ecosystems to predict the impact of radionuclides fall-out.

Root uptake of radionuclides in organic soils

[7] Rigol, Vidal and Rauret 2002 report that high 137CS soil-to-plant transfer persists in organic soils over years, which may be related to the low solid-liquid distribution coefficient resulting of the low clay content and high NH4+ concentration in the soil solution, and the low K+ availability, which enhances root uptake.



Chiang et al. 2010 studied the sorption of Caesium and Strontium of soils around nuclear facilities in Taiwan. The amounts of pyrophosphate extractable Fe (Fe(p)) clay minerals and increased temperatures were correlated significantly with the Cs and Sr sorption capacities. The authors concluded that short-range ordered sesquioxides especially Al- and Fe-oxides complexed with organics influence Cs and Sr sorption. [8]

Chernobyl contamination data

[9] Leoniak et al. 2006 report that the air at Chernobyl had been contaminated with about 5300 PBq radionuclide activity, including 1760 PBq (131)I and 85 PBq (137)Cs. The contaminated areas presented 37 kBq/m(2)of (137)Cs.



The highest mean radiation dose per year for the whole body in the first year after the accident was in Poland 932 microSv, in Bulgaria 760 microSv, in Austria 670 microSv and Greece 590 microSv), The lowest radiation dose was observed in Portugal (1.8 microSv) and Spain (4.2 microSv). Actual radiation dose in Poland is close to the limited dose permitted of 1 mSv/year.

Body radiation burden of the population of Sweden

[10] Rääf and colleagues 2006 present data of human body burden resulting from fallout from nuclear weapons tests (only (137)Cs) and Chernobyl debris (both (134)Cs and (137)Cs)The authors found that the committed effective dose over a 70 y period for the urban Swedish population is 20-30 microSv/kBq m(-2), reindeer herders 700 microSv/kBq m(-2), hunters in the counties dominated by forest vegetation 100 microSv/kBq m(-2), rural non-farming populations living in sub-arctic areas 40-150 microSv/kBq m(-2), and farmers 50 microSv/kBq m(-2).

Eating behaviour of population of the contaminated areas

According to Rääf eating behaviour is an important pathway of the fall-out radioniclides to man. Contamination takes place by ingesting foodstuffs of the region. This can be reduced by meticulously following the recommendations of the authorities.





Maximum permitted levels for foodstuffs and feedstuffs of European Regulation

[11]

Iodine administration to reduce damage caused by radiation following a nuclear accident

[12] Iodine- 131 is concentrated in the thyroid gland. It is one of the most carcinogenic nuclear fission products. If people are expected to be exposed to a significant amount of environmental radioactive iodine (iodine-131 in fallout), they should take non-radioactive potassium iodide tablets. The typical adult dose is one 130 mg tablet per 24 hours, supplying 100 mg (100,000 micrograms) iodine, as iodide ion. Typical daily dose of iodine to maintain normal health is of order 100 micrograms. By ingesting this large amount of non-radioactive iodine, radioactive iodine uptake by the thyroid gland is minimized.



KI can protect only the thyroid from radioactive iodine, not other parts of the body. KI cannot reverse the health effects caused by radioactive iodine once damage to the thyroid has occurred. KI cannot protect the body from radioactive elements other than radioactive iodine. Tablets approved by FDA come in two strengths, 130 milligram (mg) and 65 mg. Each milliliter (mL) of the oral liquid solution contains 65 mg of KI.



According to the FDA, the following doses are appropriate to take after internal contamination with radioactive iodine: - Adults should take 130 mg (one 130 mg tablet. - Women who are breastfeeding should take the adult dose of 130 mg. - Children between 3 and 18 years of age should take 65 mg (one 65 mg tablet OR 1 mL of solution). Children who are adult size (greater than or equal to 150 pounds) should take the full adult dose, regardless of their age. - Infants and children between 1 month and 3 years of age should take 32 mg (1/2 of a 65 mg tablet OR 1/2 mL of solution). This dose is for both nursing and non-nursing infants and children. - Newborns from birth to 1 month of age should be given 16 mg (1/4 of a 65 mg tablet or 1/4 mL of solution). This dose is for both nursing and non-nursing newborn infants.



Frankfort, Roos and Franssen 2003 recommend 100 mg non- radioactive iodine to block the absorption of radioactive iodine by the thyroid gland after a nuclear accident. The authors stress the problem of a well-regulated distribution and thorough protocols that staff of hospitals are familiar with. The solution of both problems are not guaranteed. [13]

Measures to reduce radioactivity in drinking water, agriculture and food

[14] Smith et al. 2001 suggest that reduction of radioactivity in drinking water should focus on water treatment and distribution. Other measures to reduce human exposition to radionuclides is to ban consumption of fish. Deboning of fish may reduce strontium. Lake liming may reduce radiostrontium in fish, however, it is ineffective for radiocaesium. The authors stress the importance of the provision of accurate information of the public.



Agricultural countermeasures used between 1986-2006 to mitigate the consequences of the Chernobyl accident in Belarus, Russia and Ukraine averted 30-40% of the internal collective dose that would have been received by the residents of affected regions without the use of countermeasures, according to a study of Fesenco and colleagues 2007. This is not comforting as nearly 40% of all Europe and parts of Asia were compromised. [15]

Deposition of radionuclides and decontamination of vegetables

[16] Tschiersch et al. 2009 studied the dry deposition of radionuclides to leafy vegetables under controlled greenhouse conditions, and the effect of washing of these vegetables. The authors found that the deposition depends on the leaf area, stomatal aperture, and plant morphology. Iodine deposition was significantly higher compared to the particulate caesium deposition. Washing of contaminated vegetables efficient for iodine ut performed better for caesium.

Contaminated area and foodstuffs will be dangerously radioactive for the next three centuries

[17] In many European countries levels of I-131, Cs-134/137, Sr-90, and other radionuclides in milk, dairy products, vegetables, fruits, grains, meat, and fish increased as much as 1,000-fold immediately after the catastrophe. Incorporated Cs-137 and Sr-90 in the heavily contaminated territories increased from 1991 to 2005. The contaminated areas will be dangerously radioactive for roughly the next three centuries, say Nesterenko and colleagues 2009.

Chernobyl contamination of atmosphere, water and soil

[18] Yablokov et al.2009 report that the air particulate activity over all of the Northern Hemisphere was up to 1 million times higher than before the Chernobyl accident, producing ionic, aerosol, and gas structure of the surface air measured by electroconductivity and air radiolysis. The radionuclides are still being transported by forest fires over hundreds of kilometres, and washout contaminates freshwater ecosystems The radionuclides concentrate in sediments, water, plants, and animals. Plants with deep roots bring the radionuclides back to the surface increasing actual values of internal irradiation among the population of the contaminated area.

Anti-nuclear movements in Japan

[18] Little was known related to the impact of the atomic bombings of Hiroshima and Nagasaki in August 1945 due to the US censorship on public information on radionuclides. The hydrogen bomb test by the US in the Bikini atoll on March 1, 1954 exposed the crew of the Japanese fishing wessel "Lucky Dragon No.5" to radiation and Mr Aikichi Kuboyama died of the causes of the exposure. This incidence brought the danger of radionuclides at headlines. As a result of public petition, the Atomic Energy Basic Law established in December 1955 forbids the use of atomic energy for military projects.

Dairy products Other

Isotopes of strontium (Sr-90) 125 750

Isotopes of iodine (I-31) 500 2.000



Alfa-emittinng isotopes of plutonium and

transplutonium (Pu-239 Am-241) 20 80



All other nuclides of half-life greater

than 10 days (Cs-134, Cs-137) 1.000 1.250





Baby Dairy Other Liquid

foods products foodstuffs Foodstuffs

Isotopes Strontium, Sr-90 75 125 750 125

Isotopes of iodine, I-131 150 500 2.000 500



Alpha-emitting isotopes

of plutonium and

transplutonium elements,

notably Pu-239, Am-241 1 20 80 20



All other nuclides of half-life

greater than 10 days,

notably Cs-134, Cs-137 400 1.000 1.250 1.000









Maximum permitted levels are set too high

[20] Green MEPs believe the maximum permitted levels of radioactive contamination are set far too high and would leave the European public exposed to unacceptably high doses of radioactive contamination. Strontium-90 is absorbed by bone, which leads to bone cancer and leukemia, caesium-137 spreads throughout the body but favours muscle tissue, plutonium is primarily toxic when inhaled and causes lung cancer and thyroid cancer broke among children in Chernobyl which drank milk which was iodine-131 contaminated.

Minor Foodstuffs

[21] For the minor foodstuffs given in the Annex of Regulation 944/89, the maximum permitted levels to be applied are 10 times those applicable to 'other foodstuffs except minor foodstuffs' fixed in the Regulation No 3954/87. Minor foodstuffs are those of minor dietary importance which make only a marginal contribution to food consumption by the population.



List of minor foodstuffs Garlic, truffels, capers (fresh, chilled, dried or as powder), manioc, arrowroot, salep, Jerusalem artichokes, sweet potatoes and similar roots and tubers with high starch or inulin content, fresh or dried, sago pith, peel of citrus fruit, curry and other spices, natural gums, agar-agar and other mucilages and thickeners, fats and oils and their fractions of fish or marine mammals, cocoa, yeasts baking powders, vitamins, essential oils.

Information to the public in case of a nuclear accident

[22] In case of a nuclear accident the public should be provided with the following informations. - Information on the type of emergency which has occurred and, where possible, its characteristics (e.g. its origin, extent and probable development).

.- The various types of radiological emergency covered and their consequences for the general public and the environment. Basic facts about radioactivity and its effects on human beings and on the environment.

- Emergency measures envisaged to alert, protect and assist the general public in the event of a radiological emergency.

- Appropriate information on action to be taken by the general public in the event of a radiological emergency.

- An invitation to the population concerned to tune in to radio or television,

subsubsectionAdvice on personal protection Have iodine supplementation. Do not go outside, stay indoors. Close windows and make the house airtight. Do not turn on ventilators. Hang laundry indoors. Use wet cloth to breath through. Change often cloth. Use waterproof clothing to go outside. Wash hands often. Do not drink milk. Eat canned food. Avoid to drink tap water. Avoid seafood.

Export ban of foods and feedstuffs which exceed maximum radiation levels

[23] It is not acceptable to allow products with contamination levels in excess of the maximum permitted levels relating to products for consumption in the Community to be exported to third countries.

Maximum permitted levels of radionuclides for feedstuffs

[24] Maximum permitted levels of radioactive contamination of feedstuffs following a nuclear accident or any other case of radiological emergency:



Feedstuffs

Feedstuffs for max Bq/Kg

Pigs 1.250

Poultry, lamb, calves 2.500

Others 5.000





Maximum allowed radiation levels

[25] The International Atomic Energy Agency said after Tuesday's blast that radiation dosages of up to 400 millisieverts per hour had been recorded at the site.

Exposure to over 100 millisieverts a year is a level which can lead to cancer, according to the World Nuclear Association.



4.000 mSv (short exposure) causes 50% death rate.

7.000 mSv (short exposure causes death

1.000 mSv/hour radiation level near Fukushima power plant 16.03.2011

250 mSv (short exposure) causes radiation sickness (nausea, vomiting headache)

100 mSv (exposure during 1 year) causes 1% cancer

2,4 mSv (cosmic radiation of 1 year according UN)

Australian nuclear waste dump at Muckaty Station

[26]

Australia hosts one of the world's first nuclear research reactors. It was place of British nuclear weapons tests at Maralinga, and is an important supplier of uranium to the world.

Disposal of nuclear waste is becoming crucial

[26]

Minister Martin Ferguson announced in February 2010 his plans to dump nuclear waste at Muckaty Station, 120km north of Tennant Creek, in the Northern Territory. Australian nuclear waste is currently stored at numerous sites around the country. Some Australian radioactive waste is also stored in Scotland and France. Federal Resources Minister Martin Ferguson said that the storage facility needed to be established before Australian waste was brought back from Scotland and France in 2014 and 2015.



Australia has total holdings of around 4 300 cubic metres of radioactive waste which is not as much compared to other countries, such as Canada with a total holdings of more than 1.8 million cubic metres of low level waste alone. [27]

Will Muckaty Station become a global repository of nuclear waste?

[28]

Senator Bob Brown says it is only a matter of time before Australia's first nuclear waste dump stores high level waste from overseas. Senator Brown calls for nuclear waste to be stored where it is produced, such as Lucas Heights in Sydney. He reasons that nuclear waste must be stored at its origin and not dumped somewhere.



The former ALP prime minister Bob Hawke referred to the moral, financial and environmental responsibility of Australia to assess a nuclear waste industry. Gareth Evans, says Australia should back all waste derived from the uranium it sells. [29]



According to The Environmenter Centre Northern Territory there is a very real chance that in the future it will be expanded to take high level radioactive waste from nuclear reactors in Europe, Asia and North America, including reprocessed spent fuel rods which are amongst the most highly dangerous radioactive materials produced by the nuclear industry anywhere in the world. This waste remains dangerous to people, wildlife and the environment for thousands of years. There is a growing global crisis in high level waste disposal and many overseas companies and governments are looking to Australia to dump their waste. [30]



World Nuclear Association director-general John Ritch said that Australians had nothing to fear from accepting radioactive waste. Thousands of years of radiation sounds like a long time, but there are many places on earth that have been geologically stable for many millions of years, he argued. [28]



History of radioactivity

1895 Roentgen rays (X rays) were discovered by Röntgen.

1896 Radioactivity was discovered by H.Becquerel working with uranium at the Ecole Polytechnique in Paris.

1898 Discovery of radioactivity of thorium by C.G. Schmidt at the same time with Madame Marya Curie. In the same year Madame Curie isolated from pitchblende (uraninite) polonium and radium.

1899 Discovery of actinium by Debierne, collaborator of Madame Curie. Actinium is a very rare element.

1934 The first artificial atomic nucleus was created by J. and Irène Joliot.

This discovery opened the way to further studies in modern particle accelerators.

1963 FDA approves the use of irradiation in food to control insects in wheat and wheat flour. Another application of irradiation which was approved by the FDA was the inhibition of sprouting of potatoes.

1980 The Food and Agriculture Organization (FAO), the International Atomic Energy Agency (IAEA) and the World Health Organization (WHO)concluded that the irradiation of food up to a maximum dose of 10 kilo Grays is considered to be safe .

1983 FDA approves the irradiation of spices and seasonings.

1985 FDA approves irradiation of pork to control trichina.

1990 FDA approves the irradiation of packaged fresh or frozen unheated poultry.

1992 FDA based on a review data and information concluded that irradiated food is safe and nutritionally adequate. 1997 FDA approves the irradiation of red meats.





Different types of rays

Electron beams



X rays

Radiation was used in many ways as X rays in medical use and industrial purposes.

Radiation of uranium

Radiation of uranium includes alfa- beta- and gama rays.

Alfa rays

are positive charged particles of helium nuclei(two protons and two neutrons). Alfa rays are heavy and are stopped by a piece of paper. They are therefore not interesting for technological irradiation of food. Alpha particles are the most energetic form of radiation produced by radioactive decay. As they are charged and move relatively slowly ( 6% of the velocity of light], they produce high ionization, loosing their energy over a short distance producing considerably ionization.

An alfa decay of a nucleus takes place when the nucleus loses four nucleons, two of them are protons. Uranium-238 decays by alfa-emission to thorium 234.

The mass number decreases by 4.

The atomic number decreases by 2.

Beta rays

are negative charged very fast electrons with near light velocity.Beta particles are emitted by nuclei which have to many neutrons to be stable. One neutron changes then into a proton and an electron which is emitted as beta particle.

The mass number does not change.

The atomic number increases by 1.

Beta rays are used for irradiation of food because of their high penetration.

The radioactivity of carbon can be use to date archaeological samples.

As an example suppose that an archaeological sample has an activity of 7,5 disintegrations per minute, and that an equal mass of carbon from a living plant has an activity on 15 disintegrations per minute. The activity of the sample is one half that of the present day level and therefore its age is equal to the half-life of C 14. The sample is therefore 5.730 years old.



Gama rays

are electromagnetic waves which are very short and bear high energy. In comparison with alfa and beta particles they produce very little ionization and are very penetrating





Radiation of cobalt-60

Irradiation of food is practiced most frequently with cobalt-60 as radiation source with emission of gama and beta.

The technology of the future will probably be the irradiation with X-rays which penetrate the food more effectively than gama rays of cobalt 60 does. X-rays can be switched off when the rays are not needed.

Cancer cells can be destroyed by gama-radiation from cobalt 60.



Irradiation of food

Irradiation of food can prolong shelf-life, reduce spoilage, reduce the menace of pathogens, delay ripening of fruits and vegetables avoiding the sprouting of potatoes [31].

The acceptance of irradiated food is very low because safe foods can be produced without radiation. The problems of Salmonella in poultry must be handled by monitoring the poultry feed, by hygienic measures of poultry stables and last but not least hygienic measures in kitchen.

It is not known if radiolytic products and free radicals which are created by irradiation are harmless or toxic and essential nutrients such as vitamin E are reduced by radiation. Foods with high fat content such as oily fish and some dairy products , develop off-odors even with low dosis. Other technologies of food processing may cause more damage to the food as radiation does. The problem of the disposal of useless cobalt-60 units still unsolved. Germany has decided to exit atomic energy programs in order to reduce radiation garbage.



Irradiation detection tests

Lipids from not cooked foods under ionising rays form a cyclic compound 2-alkyl-cyclobutone. Hydrocarbons of irradiated lipid-rich foods can also be detected.

Damage of the DNA caused by radiation may also be detected on unheated foods.

Cell membrane damage may cause changes of the physical properties of irradiated foods such as: electrical impedance, viscosity, electrical potential, electron spin resonance (ESR) and thermal and nearinfraread analysis as well as thermoluminescence. Minerals trapp in their crystals free radicals originated by irradiation. These crystals are responsible for theroluminescence which can be used for the detection of irradiation of vegetables, fruits, grains and spices because all contain minerals. The same phenomena takes place in bone bearing foods where ESR may be used to detect irradiated food such as chicken with bones.

Boneless chicken, liquid egg nd certain fruits are analysed by mass spectrometric detection of 2-alkylcyclobutanones after gaschromatgraphic separation.

Low body exposure to radiation

Low fractionated body exposure to radiation can activate immunological resistance. This is being used in tumor therapy. That is why short rest in certain radioactive caves are being used in the treatment of some sanitariums and mineral water with low radioactivity is being sold in Brazil. High dosis of radioactivity are responsible for a decrease of immunity because of the reduction of lymphocytes causing an increase of infections and cancer risk [32].

Natural radioactive exposure

Radon

Radon and its decay products which are present trapped air in rooms can be reduced with fresh air[33].

Radon endangers lung.

Air pollution from coal power plant

All minerals have a low natural radioactivity, so does coal. As it is being burned the radioactive part concentrates in the ash and through exhaust gases it comes to the atmosphere and causes fallout of isotopes of uranium, polonium and lead.

Air travel

Cosmic radiation is very high. The atmosphere is a natural shiel against this radiation. Air traffic at high altitude is exposed to increased radiation because of a thin atmosphere leading to 5 microSievert/hour (0,5 millirem/hour). This is very important for aircraft crews who are due to their profession exposed to this radiation.



Phosphate fertilizer

Phosphate fertilizer are being utilized in great amount in modern agriculture. As phosphate fertilizer contain radioactive parts increase the natural exposure of people engaged in storage an handling including an increase of radiation of fertilized plants. This leads to an exposure of 40 millirem/year[34].



Mineral water

Drinking 60 liters of mineral water in a year leads to 300 millirem/year.



Cigarette smoke

Tobacco has lead-210 and Polonium 210 as natural isotopes. Smoking during 25 years leads to an exposure of 20 000 millirem.

Life has been always submitted to natural radiation. A low level of radioactivity can cause small damage to DNA. The body can repair this by itself. It triggers th immune system. As the radioactive contamination caused by civilization rises, it becomes dangerous because of deposition in bones and organs concentrates radioactive material. The only way out of this dilemma is to reduce growing industrialization, reduce traffic, is to return to small ecological limited populations and to be satisfied with a normal life avoiding the destruction of earth.

Radiation sensitivity of Women and unborn child

[35]

According to Prof. Dr. Wolfgang-Ulrich Müller, radiation sensitivity of the unborn child is particularly high, while radiation sensitivity of women appears to be twice as high as that of men.



Furthermore, radiation sensitivity of the eye lens is higher than previously assumed. Research in this field must be continued and intensified, and lowering the limit value for the eye lens must be investigated as a matter of urgency.

Half-life period of radioactive material

The half-life period is the time in which half of a certain amount of radioactive material will decay.

An element with 1600 years as half-life period has after 1600 years half of its material still active. After another 1600 years half of this amount is still active, one-fourth of the initial amount from 3200 years ago. It takes another 1600 to reduce it to one-eighth of the initial amount of 4800 years ago.

Some examples demonstrate the necessity to handle radioactivity with great care as radioactive garbage will remain as burden for thousands of generations to come:



Element Half-life



Uranium-238 ( 23892U) 4 510 000 000 years

Uranium-235 ( 23592U) 704 000 000 years

Uranium-234 ( 23492U) 247 000 years

Radium-226 ( 22688Ra) 1 600 years

Radon-222 ( 22286Rn) 3,82 days

Polonium-214 ( 21484Po) 1.6 X 10-4 seconds

Polonium-218 ( 21884Po) 3.05 minutes





Radiation hazards

The extend of the harm caused to cells by radiation depends on the nature of the rays, the part of the body exposed to radiation and the dose received.

Nature of rays: Alfa- particles are absorbed in the dead surface layers of the skin and are therefore not dangerous. If the source however is taken into the body through food, water or dust. Alfa rays can cause great damage.

Radiation dose

Radiation doses the energy absorbed by a unit of mass. It is measured in gray (GY) units ( 1 Joule is absorbed by 1 Kg mass). 1 GY = 1 Jkg old writings used 1 Gy = 100 rad

Unified atomic mass unit ( u )

1 u = 1.660 X 10-27kg

1 u = 931 MeV



Relative biological effectiveness ( RBE-Values)

In order to take account of the different biological effects of the different radiations it is useful to define the effective dose as :

Effective dose = Radiation dose X RBE

The RBE values are given below:



Radiation RBE



X rays 1

Beta, gama and X 1

High Speed neutrons 10

Alpha rays 20



Measuring radiation dosage

[36] There is a relationship between radiation dose and its effect on the body. Radiation dosing can be thought of as an amount of energy absorbed by the body.

The rad

The rad is a unit of absorbed radiaton dose defined in terms of the energy actually deposited in the tissue. One rad is an absorbed dose of 0.01 joules of energy per kilogram of tissue.

RBE

To accurately assess the risk of radiation, the absorbed dose energy in rad is multiplied by the relative biological effectiveness (RBE) of the radiation to get the biological dose equivalent in rems. The RBE is a "quality factor," often denoted by the letter Q, which assesses the damage to tissue caused by a particular type and energy of radiation.



For alpha particles, Q may be as high as 20, so that one rad of alpha radiation is equivalent to 20 rem. The Q of neutron radiation depends on their energy. However, for beta particles, x-rays, and gamma rays, Q is taken as one, so that the rad and rem are equivalent for those radiation sources

The jungle of units

The effective dose is labeled as Sievert (Sv)

An old unit for effective dose had been the rem (röntgen equivalent man)

1 rem = 1 rad times RBE

1 Millirem ( mrem ) = 0.001 Sievert

1 Sv = 100 rem

The unit of the activity of radioactive material is Becquerel (Bq): 1 Bq = 1 decay/second.

The old unit of activity replaced by Bq, is Curie (Ci):

1 Ci = 3,7 X 1010 decays/second = 3,7 X 1010 Bq.



Energy dose

The rays of radiation have an interaction with the mass of the body which is being irradiated. This is called energy dose. The unit is Gray (Gy) , which means that 1 joule is absorbed by 1 kg of body.

1 Gray (Gy) = 1 J/Kg

The old unit of energy dose was Rad (Radiation absorbed dose)Radiation absorbed dose 1 Gray (Gy) = 100 Rad



The mass-energy relation of Einstein

According to the theory of relativity mass is equivalent to energy in accordance to:

E = mc² where c is the speed of light (3 X 108 m )s-1



Mass-energy during an atomic fission

When 1 kg of uranium-235 undergoes fission the energy released is 80 000 000 000 000 J corresponding to a decrease in mass of 0,9 gram. This is a significant loss of mass and can be measured.

Mass-energy during a chemical reaction

Chemical reactions release relatively small amounts of energy and the decrease in mass is to small to be measured.

When 1 kg of petrol is burned the energy released is only 50 000 000 J corresponding to a decrease in mass of only 0,000 005 500 gram. This is to small to be measured and is omitted in chemical stoichiometry.

Natural exposures

Cosmic radiation

The atmosphere protects against cosmic radiation. As the air gets thinner, radiation rises. Free protons as primary rays from outer space collide with the upper layers of the terrestrial atmosphere reacting with other particles. This causes a mixture of rays, like mesons which passes meter of concrete and weak rays such as electrons,positrons and gama rays.

Some examples demonstrate the growing exposition to radiation resulting growing air traffic. Passengers and crew of airlines are submitted to considerable high cosmic radiation. To spare fuel air traffic takes place at 10 000 o 20 000 meters over sea level:



Altitude(meters) Cosmic radiation (mrem/year)

sea level 30

1 500 60

3 000 140

4 000 200



Air traffic 0,5 mrem/flight hour

(4 320 mrem/year)



A crew member with 80 flight-hours per month is exposed to 480 mrem/year, this is twelve times the exposure of a profession at sea level.

Exposition to radon

The lung of inhabitants in cold climates are exposed to radiation of radon which emanates from soil and concentrates in poor change of air. This may lead to an exposition of the air tract and lungs of:



exposition to radon = 400 to 1 300 mrem/year



The radiation of radon ( 22086Rn) is significant because it consists of alfa particles which cause great damage to surface cells. The volume of air which passes the lungs is very high. Intake of radon is therefore relevant. Keep rooms well aerated to get rid of radon.



Lung cancer caused by radioactive radon in living spaces

[35]

The latest findings on the risk of lung cancer from radon exposure were discussed at the International Commission on Radiological Protection (ICRP) Berlin, 19 June 2007. According to Dr. Margot Tirmarche, the risk of radon-related lung cancer in habitations increases by around 8% per 100 Becquerel per cubic metre (Bq/m³).



Additional cases of cancer are already observed at between 100 and 200 Bq/m³. Every year in Germany around 1,800 people die due to radon - one person every four hours. Radon may also play a role in child leukaemia. There is an urgent need for action to reduce radon exposures. The target value for new buildings is 100 Bq/m³, a guideline value for remediation work in existing buildings is 200 Bq/m³.



Artificial radioactivity

Radioactive nuclides which do not occur in nature can be produced by bombarding natural occurring nuclides inside a nuclear reactor with atomic particles such as neutrons.



Nuclear reactor

Nuclear reactors provide electric energy with the claim of clean energy. Today Germany tries to get rid of the atomic industry as it proved to be unsafe and there is no solution for the disposal of nuclear waste.

Nuclear fission

is the disintegration of a heavy nucleus into two lighter nuclei with release of energy because the binding energy per nucleon of the fission products is greater than that of the parents.

A classic example of fission is the bombardment of uranium-235 ( 23592U) by slow neutrons and the formation of 23692U which is unstable and undergoes fission.

23592U + ( 10n)-> 23692U -> 14156Ba + 9236Kr + 3 10n + energy

Nuclear reaction make use of controlled fission reactions to provide energy. The atom bomb makes use of an uncontrolled fission reaction.



Nuclear fusion

is the combining of two light nuclei to produce a heavier nucleus and energy.

A classic example of nuclear fusion is the fusion of two deuterium nuclei to produce helium 3.

21H + 21H -> 32He + 10n + energy

This is the source of energy of the sun.

The high pressure and high temperature which is necessary to overcome the mutual electrostatic repulsion in the hydrogen bomb is provided by an atom bomb.

The thermal reactor

Uranium-236 being bombarded by neutrons undergoes a fission and releases about 2,5 neutrons which can bombard other uranium-236 atoms turning to a chain reaction.

In natural uranium only about 1 atom is a 23592U atom. All other atoms are 23892U which can only be fissioned with very fast neutrons. To produce fission of 23592U atom slow neutrons are necessary. Therefore the neutrons released by 23592U atom are to slow to cause fission of 23892U atom and to fast for a 23592U atoms. Therefore they must be slowed down by moderators ( graphite, water or heavy water D2.). According to the material of the moderator the reactors are called:



Graphite-moderated reactor

Control rods of boron coated steel are used to keep the rate of production of neutrons to the requiredrods level by capturing the necessary proportion before they can initiate fission.

The produced energy is removed with a coolant such as carbon dioxide or water though the reactor, passing through an heat exchanger producing steam to drive turbines.

Cycle of the fuel rods of nuclear power plants

Uranium is being won from ore in 99,3% U-238 and 0,7% U-235. This mixture is tranformed in gas as Uranium hexa fluorid (UF6) in the special enrich plant. The amunt of U-235 is risen to 3,5% which is necessary for the function of light water reactors. Here the Uranium is formed to rods which arre then forwarded to the nuclear power plants.

The fuel rods once exhauted are stored until the separation of Uranium and Plutonium and other materials can take place. Waste of recycling is stored being protected by a glas layer.

Cancers in nuclear power plant workers

[35]

According to Dr. Elisabeth Cardis) speaking at the Conference of the International Commission on Radiological Protection (ICRP) Berlin, 19 June 2007, the impact of low exposures has been underestimated in the past in two respects. The relative radiation risk in the area of occupational radiation exposure is definitely comparable to that of high exposures.



Increased rates of cancer are already observed in the case of occupational lifetime doses which comply with the limit values currently in force. Lowering the limit values must be investigated as a matter of urgency.

Leukemia in children living near nuclear power plants

[37]

The German Federal Agency for Radiation Protection says that there is an increased leukemia risk for children living in the proximity of 5 kilometres from a nuclear power station. The risk increases inversely to the distance to the plant. A research study leaded by Dr. Maria Blettner , analysed all leukemia cases in the proximity of 16 German nuclear power plants from 1980 to 2003. The researchers found 37 new cases while only 17 had been statistically expected. One member of the team said that the results were underrated. He says the area of concern is to increase to 50 kilometres around nuclear power plants.



The study says that the emission of radiation of the nuclear power plants is not sufficient to cause to increase the risk of cancer, also other concurrent causes could not explain the association of increased leukemia risk with inverse distance to the nuclear power plant.



Worldwide studies confirm increased risk of leukemia in children under 5 years. The study of Dr. Blettner was done at The Institute of Medical Statistics, Epidemiology and Informatics (IMBEI) at the Clinical Centre of Mainz University.



The study rises high doubts on the veracity of foregoing studies which deny any increased cancer risk related to nuclear power plants.



The Federal Minister for the Environment Sigmar Gabriel asked the Radiation Protection Commission to assess the study, which is part of the German Children Cancer Register.

Japanese nuclear power plants are not earthquake safe

[38]

The Japanese Nuclear power plant in Kashwazaki was seriously damaged by the 6,8 heavy earthquake on the 16. July 2007. The earthquake was 2,5 stronger as the plant was built for. Radioactive liquid was released at the site which is going through repair works for one year. There are another 17 nuclear power plants with the same guidelines used for the Kashwazaki plant.



Uranium-238 and ammunition in warfare

Uranium-238 is a waste of the production of fuel cells for nuclear power plants. As waste it is forwarded to the arms industry which uses it for hard core projectiles, mines and grenades.

Depleted uranium-238 (DU) projectiles were used to bust tanks in the desert of Kuwait and Iraq. From the 24.2.1991 to the 28.2.1991 around 315.000 kg of radioactive uranium fired against Sadams soldiers are now scattered all over the region.

Later, in the war against Milosewich in Kosovo almost the same amount of depleted uranium-238 was used and is still distributed all over the territory. This material is highly radioactive with a half-life of 4,5 billions of years.

All efforts should be done to avoida growing contamination of nature as there alternatives to uranium (density=18,7 Kg/dm³ with traces of plutonium which can be replaced by tungsten (density=19,3 Kg/dm³).

20 years after Chernobyl

[39]

The accident of Chernobyl in 1986 is still responsible for sheep at the farms in Cumbria, Scotland and Wales in April 2006 to still contain levels radioactivity above safety limits. Their meat is not allowed to enter the food chain.



The particular chemical and physical properties of the peaty soil types of these regions makes the radiocaesium-137 to pass from soil to grass, accumulating in sheep.



The levels of radioactivity have fallen in some of the affected areas but a number of farms are still under restriction and will not have their restrictions lifted in the near future.



According to FEPA only sheep that have less than the maximum limit of 1,000 becquerels per kilogram of radiocaesium are allowed to enter the food chain.

Incorporation of radionuclides from the disaster of Chernobyl are increasing. Protective measures will be necessary for many generations

[40]

Nesterenko and colleagues 2009 report that radiation levels for individuals in Belarus, Ukraine, and Russia have been increasing steadily since 1994 due to internal absorption.



To reduce levels of incorporated radionuclides in food and meat production food additives are used, such as ferrocyanides, zeolites, lime/Ca as an antagonist of Sr-90, K fertilizers as antagonists of Cs-137, and phosphoric fertilizers that form a hard, soluble phosphate with Sr-90, disk tillage and replowing of hayfields, cleaning cereal seeds, processing potatoes into starch, processing carbohydrate-containing products into sugars, and processing milk into cream and butter. Forestry operations to create "a live partition wall," to regulate the redistribution of radionuclides into ecosystems are discussed. The authors conclude that these protective measures will be necessary in Europe for many generations.

Contamination of food and people

[41]

In many European countries levels of I-131, Cs-134/137, Sr-90, and other radionuclides in milk, dairy products, vegetables, grains, meat, and fish increased drastically after the catastrophe. Some foodstuffs from Europe exceeded permissible levels of Cs-137 in 2007. From 1995 to 2007, up to 90% of the children from Belarus had levels of Cs-137 accumulation higher than 15-20 Bq/kg, with maximum levels of up to 7,300 Bq/kg in Narovlya District, Gomel Province. Average levels of incorporated Cs-137 and Sr-90 in the heavily contaminated territories increased from 1991 to 2005. According to Nesterenko these areas will remain dangerously radioactive for the next three centuries.

Preventive Protective Action Guidelines

[42]

The Protective Action Guides are 5 mSv (0.5 rem) for committed effective dose equivalent or 50 mSv (5 rem) committed dose equivalent to an individual tissue or organ, whichever is more limiting. These correspond to the "intervention levels of dose" consensus values set by international organizations. Intervention levels of dose are radiation doses at which introduction of protective actions should be considered (ICRP 1984b).



Limit Responder Exposure - 5 rem (or greater), sheltering - 1 to 5 rems. Evacuation - 1 to 5 rems. Relocation - 2 rems in first year, 500 mrem/yr in subsequent years, food Interdiction - 500 mrem/yr, drinking Water - 500 mrem/yr.



The US EPA response levels for preventive Protective Action to Land Contamination Guides (PAGs) are 3 µCi/m2 (111 kBq/m2) while levels for emergency PAGs are set at 30 µCi/m2 (1,110 kBq/m2) for infants and 50 µCi/m2 (1850 kBq/m2) for adults. Inhaled Cesium-137 commits to humans a 50-year committed effective dose equivalent (CEDE50) of 8.6310-9 sievert per becquerel while its specific activity is 3.261012 becquerel per gram. [43]



The mean contamination of Cs-137 in Germany after Chernobyl was , some parts in the south even 10 times higher. This corresponds to a contamination of 1mg of Cs-137 per square kilometer or around 500g Cs-137 deposited all over Germany.

Fallout of Chernobyl affected Europe, Asia and Emirates

[44]

Fall out of the Chernobyl meltdown affected 40% of Europe (including Austria, Finland, Sweden, Norway, Switzerland, Romania, Great Britain, Germany, Italy, France, Greece, Iceland, Slovenia) and wide territories in Asia (including Turkey, Georgia, Armenia, Emirates, China), northern Africa, and North America. Radioactivity exposure at a level higher than 4 kBq/m(2) (0.11 Ci/km(2)) from April to July 1986 happened. The consequences of radioactive contamination are therefore not confined to Belarus, Ukraine, and European Russia.

Interference level for radiation protection and decorporation of radionuclides

[45]

Due to local food consumption the annual individual dose limits in Belarus, Ukraine, and European Russia exceed 1 mSv/year in 2007, and for effective radiation protection the interference level for children at should be set at 30% of the official dangerous limit (i.e., 15-20 Bq/kg), says Nesterenko.



Pectin food additives from apples, currants grapes and seaweed, 5 g twice a day, reduced radionuclides in children by 30 to 40%, report the authors.

Radiological impact in Europe

[46]

According to Leoniak, Zonenberg and Zarzycki 2005 the air at Chernobyl had been contaminated with about 5300 PBq radionuclide activity, and surface 137Cs activity was 37 kBq/m(2). The highest mean radiation dose per year for the whole body in the first year after the accident was in Bulgaria (760 microSv), Austria (670 microSv), Greece (590 microSv), and Poland 932 microS, while the lowest radiation dose was observed in Portugal (1.8 microSv) and Spain (4.2 microSv).

Persistent contamination with 137 Cs of Alpine lakes sediments

[47]

Rezzoug and colleagues 2006 found that the region of the alpine lake Boréon at the southeast of France was contaminated with 137Cs fallout of the Chernobyl accident with at least 3.5 Bqcm(-2), more probably the double. The lake sediments still undergo a rather strong contamination by 137Cs and the external exposure impact was evaluated at 2 mSvy(-1) for 2002. Transuranics and fission products 90Sr, 137Cs, 238Pu, 239/240Pu and 241Am have been measured in Boréon lake sediment samples. These data enable future determination of the mass balances of the radiopollutants. Schertz and colleagues 2005 stress that this area is in a recreational area used by urban population. [48]

Fish of Finnish lakes with high uptake of 137Cs

[49]

Saxén and Ilus report continuously high concentrations of 137Cs in fish of two Finnish lakes due to a prolonged stay of caesium at a relatively high level in the water. There were differences between the two lakes found which was explained by a slow sedimentation rate, deficiency of potassium in water, a low pH and a swampy soil type of the catchment resulting in a higher content of 137 Cs of the water and its uptake by fishes in the lake Lake Siikajarvi compared with the Lake Vehkajarvi.

Radionuclide transfer to wood and food from forests

[50]

Radionuclide transfer varies in space and time depending on deposition processes, soil type, land use, and resulting contamination in food products, the radionuclide transfer through food chains. Calmon and colleagues 2001 assessed the transfer of radionuclides of radiocaesium and radiostrontium to trees in forests which vary between T(ag) 10(-3)m(2)kg(-1) (dry weight). Tree foliage was usually 2-12 times more contaminated than trunk wood. The transfer of radionuclides to mushrooms varies from T(ag) 10(-3) to 10(1)m(2)kg(-1) (dry weight), for berries, typical values are around 0.01-0.1 m(2)kg(-1) (dry weight). Transfer of radioactive caesium to game animals, reindeer, moose birds and waterfowl reflect the soil and pasture conditions at individual locations. In wild boar the caesium activity concentration shows no decline because of its special feeding habits.

Wild animals in Germany cannot be sold as food because of high levels of radioactive caesium-137

[51]

The south of Germany was heavily affected by fall out of the Chernobyl accident on April 26, 1986. German wild boar present high levels of contamination with caesium-137 in 2010. According to the Environment Ministry, the average contamination for boar shot a forested region on the Bavarian border with the Czech Republic, was 7,000 becquerel per kilogram. According to food law any animals showing contamination levels higher than 600 becquerel per kilogram must be disposed of.



Germany's Atomic Energy Law, which regulates the use of nuclear energy in the country, mandates that the government in Berlin pay compensation to hunters who harvest contaminated animals.



Wild boar have a predilection for mushrooms and truffles, which are particularly high in radioactivity. Experts say that the contamination of mushrooms and truffles will remain high and may even rise slightly.



German government compensation payments to hunters are part of a 238 million euro recompense for damages relating to Chernobyl accident. Radioactivity in wild boar will likely remain that way for at least the next 50 years.

Radionuclides from soil to fruits

[52]

Carini 2001 in a 2001 review writes that the transfer of radionuclides from soil to fruit is nuclide specific, depends on the type of soils and fruit plant species. Caesium has a higher transfer rate to fruits of woody trees and the transfer from soil to fruits of shrubs is higher for strontium in temperate areas. Caesium is higher in subtropical and tropical fruits and strontium, plutonium and americium, in the same fruits, are lower because of different soil characteristics, says the author.

Japan prohibits the sell of shiitake-mushrooms

[1] In the region of Fukushima shiitake-mushrooms (Lentinus edodes Sing) with high radiation were found. A total of 16 cities and towns are compromised. The ban was imposed on mushrooms cultivated outdoors. Mushrooms grown in greenhouses are safe and may be sold, according to Kyodo News. The local department of health reports a 1,55 times of the maximum permitted content of Iodine 131 and 1,78 times for Caesium in shiitake-mushrooms.



On April 1, shiitake mushrooms from the city Iwaki had a level of radioactive cesium of 890 becquerels per kilogram against the limit of 500 becquerels, reports Kyodo News.

Radionuclides in the food chain

[2]

The exposure may result from direct inhalation of contaminated air or ingestion of contaminated water, or from a less direct pathway, the ingestion of contaminated food products. The exposure may result from direct inhalation of contaminated air or ingestion of contaminated water, or from a less direct pathway, the ingestion of contaminated food products. The the contamination of the milk of the cow is a typical example to the incorporation of radionuclides in the food chain resulting of the ingestion of contaminated pasture, the so called the pasture-cow-milk exposure route.



Mushrooms from Bavaria, Germany, are still contaminated with radiating Caesium from the disaster of Chernobyl. German wild boars even after 25 years after Chernobil disaster are excluded from food market because they exceed the German limit on 600 Becquerel/Kg in meat. Wild boars like mushrooms which are highly contaminated by radionuclides. [3]



The contamination of mushrooms with radionuclides depends on the type of mushroom and on the type of soil they grow on. The Cs-137 nuclides can highly be absorbed from forest soil where it is free available for plant roots. In agricultural areas the radionuclides are tightly bound to soil particles and their absorption is diminished. Sweet chestnuts and birch bolete are plant products with highest contamination. [4]



Schwaiger et al. 2004 report that in 2002, the ingestion dose of radionuclides from the accident of Chernobyle in Austria amounts to 2.24 microSv (adult), or 0.88 microSv (5-year infant) respectively, which is less than 0.5% of the ingestion dose of the first year and amounts to 0.7% of the ingestion dose from natural radionuclides. [5]

Soil type important for prediction of food-chain contamination

[6]

According to Bell and Shaw 2005 initial studies and advices of the UK Ministry of Agriculture, Fisheries and Food, following the Chernobyl accident, were based on agricultural soils, with high clay and low organic matter contents where the radioiodine decayed and the radiocaesium became immobilised by attachment to clay particles. Other soils, low in clay and high in organic matter, such as the wet and acidic uplands, however favour mobility and bioavailability of the radionuclides. Radiocaesium entered the food chain. Sale of sheep had to be banned over areas of upland. Bans will continue in some cases for some years to come.

The authors stress the importance of a fundamental understanding of biogeochemical pathways in different ecosystems to predict the impact of radionuclides fall-out.

Root uptake of radionuclides in organic soils

[7] Rigol, Vidal and Rauret 2002 report that high 137CS soil-to-plant transfer persists in organic soils over years, which may be related to the low solid-liquid distribution coefficient resulting of the low clay content and high NH4+ concentration in the soil solution, and the low K+ availability, which enhances root uptake.



Chiang et al. 2010 studied the sorption of Caesium and Strontium of soils around nuclear facilities in Taiwan. The amounts of pyrophosphate extractable Fe (Fe(p)) clay minerals and increased temperatures were correlated significantly with the Cs and Sr sorption capacities. The authors concluded that short-range ordered sesquioxides especially Al- and Fe-oxides complexed with organics influence Cs and Sr sorption. [8]

Chernobyl contamination data

[9] Leoniak et al. 2006 report that the air at Chernobyl had been contaminated with about 5300 PBq radionuclide activity, including 1760 PBq (131)I and 85 PBq (137)Cs. The contaminated areas presented 37 kBq/m(2)of (137)Cs.



The highest mean radiation dose per year for the whole body in the first year after the accident was in Poland 932 microSv, in Bulgaria 760 microSv, in Austria 670 microSv and Greece 590 microSv), The lowest radiation dose was observed in Portugal (1.8 microSv) and Spain (4.2 microSv). Actual radiation dose in Poland is close to the limited dose permitted of 1 mSv/year.

Body radiation burden of the population of Sweden

[10] Rääf and colleagues 2006 present data of human body burden resulting from fallout from nuclear weapons tests (only (137)Cs) and Chernobyl debris (both (134)Cs and (137)Cs)The authors found that the committed effective dose over a 70 y period for the urban Swedish population is 20-30 microSv/kBq m(-2), reindeer herders 700 microSv/kBq m(-2), hunters in the counties dominated by forest vegetation 100 microSv/kBq m(-2), rural non-farming populations living in sub-arctic areas 40-150 microSv/kBq m(-2), and farmers 50 microSv/kBq m(-2).

Eating behaviour of population of the contaminated areas

According to Rääf eating behaviour is an important pathway of the fall-out radioniclides to man. Contamination takes place by ingesting foodstuffs of the region. This can be reduced by meticulously following the recommendations of the authorities.

Undeclared irradiated supplements

[53] Dried aromatic herbs, spices and vegetable seasonings are the only foods that may be irradiated inside and outside Member States of the EU and sold freely within the EU.



Imported irradiated food must comply with EU labelling and documentation rules. They must have been irradiated at a facility approved by the European Commission. There are only few approved facilities outside the EU: three in South Africa, one in Turkey and one in Switzerland.



Testing food supplements the FSA found in 2003 that 50 per cent of food supplements in the UK had been irradiated or contain an irradiated ingredient, but are not labelled as such. Publication of the results was deferred until 2006 pending enforcement action by local authorities.



The Food Safety Authority of Ireland (FSAI) found that 25 per centre of dried noodle products contained ingredients that had been irradiated. They had not been labelled as such.



The US, South Africa, the Netherlands, Thailand and France, followed by about 50 adopted irradiation technology and use it on 60 products.



Currently regulations on food irradiation in the European Union:

EU: Directive 1999/2/EC establishes a framework for controlling irradiated foods, their labelling and importation. Directive 1999/3 establishes an initial positive list of foods which may be irradiated and traded freely between member states, which includes only dried aromatic herbs, spices and vegetable seasonings.

Belgium, France, the Netherlands and the UK allow other foods to be irradiated.

Denmark, Germany and Luxembourg remain opposed to irradiation.

UK allow 7 categories of foods to be irradiated.

WHO Technical Report on Irradiation of Food

A World Health Organisation scientific report in 1999 found that irradiation posed no risk to human health:

Overall chemical change, as reflected either in the formation of a stable compound or the loss of a particular constituent, is quantifiable and relatively minor, requiring sensitive techniques to discern that a product had been irradiated.



In summary, the macronutrients - proteins, fats and carbohydrates - are not significantly altered in terms of nutrient value and digestibility by irradiation treatment. Among the micronutrients, some of the vitamins are susceptible to irradiation to an extent very much dependent upon the composition of the food and on processing and storage conditions.



From a nutritional viewpoint, irradiated foods are substantially equivalent or superior to thermally sterilized foods.



On the basis of the extensive scientific evidence reviewed, the report concludes that food irradiated to any dose appropriate to achieve the intended technological objective is both safe to consume and nutritionally adequate.



The experts further conclude that no upper dose limit need be imposed, and that irradiated foods are deemed wholesome throughout the technologically useful dose range from below 10 kGy to envisioned doses above 10 kGy." [54]

Irradiated foods in EU

[55] The irradiation of dried aromatic herbs, spices and vegetable seasonings is authorised in the EU (Directive 1999/3/EC of the European Parliament and of the Council of 22 February 1999 on the establishment of a Community list of food and food ingredients treated with ionising radiation In addition, 6 Member States have notified that they maintain national authorisations for certain foods in accordance with Article 4(4) of Directive 1999/2/EC.



Under Article 6 of Directive 1999/2/EC, any irradiated food or any irradiated food ingredient of a compound food must be labelled with the words "irradiated" or "treated with ionising radiation".

Approved food irradiation facilities in EU

Belgium

IBA Mediris S.A. Irradiating shrimps, frog legs, herbs, frozen vegetables, cheese, eggs, poultry/game, meat, fish, dried fruit, starch, plasma, prepared dishes, total 5,8 Tons in 2004

Czech Republic

Dried aromatic herbs, spices and vegetable seasonings, egg white, total 460 tons in 2004.

Germany: In 2004

there were four approved irradiation facilities in Germany:

Gamma Service Produktbestrahlung GmbH, Radeberg irradiating dried vegetables, herbs and seasonings, other foodstuffs ( guarana seeds), Total of 342 Tons in 2004.

Beta-Gama Service GMBH&Co.KG, Whiel, irradiating granulated slippery jack mushrom, plant raw materials (parsley, dill, cilantro), powdered spinach powdered celery, horse radish, parsley. Total of 24 Tons in 2004. Total of 429 Ton in 2004.

Isotron Deutschland GmbH, Allershausen irradiating seasonings, herbs total 429 Tons in 2004.

Gama-Service GMBH&Co KG, Bruchsal. No food products were irradiated in the facility in 20034

Spain

There were two facilities approved for the irradiation of food. No information concerning activities in 2004 were given.

France

There were seven facilities approved for irradiation of food. In 2004 the following foods were irradiated: Herbs, spices and vegetable seasonings, frozen herbs, dried vegetables and fruits, gum arabic, casein, caseinates, mechanically recovered poultry meat, offal of poultry, frozen frog legs, shrimps, total of 1.800 Tonns.

Hungary

In 2004 there was one facility. No informations were given.

Italy

In Italy here was one facilty. No information was given.

The Netherlands

There were two facilities. One in Ede and one in Etten-Leur. Irradiated foods in 2004 were: Spices and herbs, dehydrated vegetables, poultry meat (frozen) frog parts, egg white (cooled), Foods intended for export to third countries. Total in 2004 4 768 Tons.

Poland

There were two approved facilities:



Institute of Nuclear Chemistry and technology, Warsaw, irradiated were spices, Herbs, dehydrated vegetables, and dried mushrooms, total in 2004 of 680 Tons.

Institute of Applied Radiation Chemistry Technical university of Lodz. Spices in 2004 total of 47,8 Tons.

The United Kingdom

It has one facility approved. No food was irradiated in 2004.

Labelling

The Neatherlands reports that a total of 430 samples had been taken in the marketplace and analysed for irradiation. Of these 430 samples, 45 dietary supplements and spices proved to be irradiated. Only 2 of the irradiated samples were correctly labelled as such. No indication of the origin of the positive samples was given.



The information submitted shows that during 2004, 3,9% of samples were irradiated and not correctly labelled.



The infringements are unevenly distributed over product categories. Products imported from Asia, especially Asian-type noodles and dried prepared noodles, are particularly concerned. In addition, it should be noted that in 2004, there were no facilities in Asia approved by the European Community.



Differences between Member States regarding the results of controls could partly be explained by the choice of the samples and the performance of the analytical methods used. No reports from 2005 and 2006 are available.

Adhesion and internalization of pathogens in fresh produces reduce efficacy of sanitizers

[56]

Lynch, Tauxe and Hedberg 2009 explain that widespread food borne outbreaks have their cause in the increasing consumption of fresh produce, changes in production and distribution. Adhesion of pathogens to surfaces and internalization of pathogens reduce the efficiency of conventional processing and chemical sanitizing methods. At the surface of fruits pathogens can build biofilms which protects them from sanitizers, or they invade the interior of the plants where they cannot be harmed.



To reduce these risks the authors suggest to improve the prevention of the contamination on the farm, during packing or processing. A terminal such as irradiation may improve safety of fresh produce. The authors call for more investigations on the causes of outbreaks to develop improved prevention strategies. Noah 2009, commenting this article stresses that the worldwide transport of fruits and vegetables may distribute pathogens over large areas. [57]

Irradiation of fruits and Vegetables

[58]

Arvanitoyannis and colleagues 2009 emphasizes that central processing of fresh fruits and vegetables turns irradiation technology interesting. The authors stress that gamma irradiation restrain potato sprouting, kills pests in grain, extends shelf life of fruit and vegetable shelf life.



To avoid high irradiation doses the "hurdle technology" may be useful. This strategy applies more than one technology to improve quality and shelf life. Furthermore, various methods for detection of irradiated foods, such as EPR, TL and Comet assay are discusses.



The impact and effectiveness of irradiation dose on the shelf life and microflora and sensory and physical properties of fish, shellfish, molluscs, and crustaceans were assessed by Arvanitoyannis and colleagues. The authors looked also at the synergistic effect of irradiation in conjunction with other techniques such as salting, smoking, freezing, and vacuum packaging. Again, methods to detect irradiation of fish and seafood are assessed. [59]

Irradiation of spinach affects nutrients

[60]

FDA approved the irradiation of fresh iceberg lettuce and spinach to kill E. coli 0157:H7 and Salmonella enteric. Doses of irradiation up to 4kGy had been considered not to impact the nutrients of spinach.



Lester and colleagues 2010 assessing the effect of gamma-irradiation or electron beams on spinach found that concentrations of vitamins B(9), E, and K and neoxanthin were little or not changed by irradiation. However, total ascorbic acid (vitamin C), free ascorbic acid, lutein/zeaxanthin, violaxanthin, and beta-carotene all were significantly reduced at 2.0 kGy and lesser doses. Dihydroascorbic acid increased with increasing irradiation due to the formation of oxidative radicals.



The authors report that packaging atmosphere had little effect, however, spinach irradiated under N2 presented an increase of dihydroascorbic acid levels, compared to air.

Irradiated foods are free of risks, but consumer is still insecure

[61]

No scientific study demonstrating that consumption of irradiated food might pose a risk to consumers were found by Rossi and colleagues 2009. All studies conclude that food irradiation at the appropriate dose required to reduce contamination is safe and does not affect its nutritional value, however the technology is not accepted by a broad part of the consumers.



In an effort to demonstrate the potential benefits, the authors compared food irradiation with the risk of infection with E. coli 0157: H7, and concluded that up to date no risk of irradiated foods are known, but death cases from bacterial pathogens are known.

Escherichia coli internalized on lettuce leaves

[62]

Gomes and colleagues 2009 assessed the efficacy of irradiation of leaves of iceberg, Boston, green leaf, and red leaf lettuces contaminated with a cocktail mixture of two isolates of Escherichia coli, and subjected to a vacuum perfusion process locate the bacteria on crevices and into the stomata.



Gamma irradiation was applied at 0.25-1.0-kGy. Calculated D(10)-values varied between 48 and 62%. No significant difference was noted between the lettuce varieties. Irradiation up to 1.0-kGy resulted in 3-4-log reduction of internalized E. coli on the lettuce leaves.



The authors concluded that ionizing irradiation may be used to reduce the risk of food disease outbreaks by reducing internalized pathogens. The effect is dose-dependent,

Irradiation compared with chlorination for elimination of Escherichia coli O157:H7

[63]

Niemira 2008 comparing the effect of irradiation with that of chlorination found that pathogenic bacteria penetrate the leaf tissues and are protected against chlorination. In rhis study E. coli inoculated leaves of boston, green leaf, and red leaf lettuce were treated with a 3-min wash with sodium hypochlorite solution (0, 300, or 600 ppm) or various doses of ionizing radiation (0.25 to 1.5 kGy).



The reduction obtained with chlorine solutions was less than 1 log, while irradiation reduced pathogenic E. coli 5 logs on iceberg lettuce treated with 1.5 kGy. The variety of lettuce influences the specific results. The author concluded that irradiation is able to effectively reduce viable E. coli O157:H7 cells internalized in lettuce.

Irradiation of food, an emerging technology

[64]

In a review in 1998 Farkas suggests the irradiation of food ranging from 2 to 7 kGy, depending on the variety of food, to eliminate potentially pathogenic. The author recommends irradiation of poultry and red meat, egg products, and fishery products, irradiation can be performed in frozen state. According to the author fumigation of herbs and enzyme preparations may be replaced irradiation using doses of 3-10 kGy. Radiation treatment at doses of 0.15-0.7 kGy are being suggested for the control of foodborn parasites. The author stresses that microorganisms surviving radiation treatment are more sensitive subsequent food processing treatments than not irradiated bacteria. The author concluded that irradiation of food is an emerging technology with increasing number of clearances on radiation decontaminated foods.

Improved safety and quality of poultry and other irradiated meat

[65]

O'Bryan and colleagues 2009 emphasize that currently permitted levels of irradiation are insufficient to control pathogenic viruses, while gram-negative spoilage organisms are very sensitive to irradiation. The reduction of spoilage bacteria increased the shelf life and, on the other hand, did not provide a competitive growth advantage for other food pathogens, weakened by irradiation.



The authors stress that most of the antimicrobials and antioxidants produce an increased lethality of irradiation. Thus, the combinations of dosage, temperature, dietary and direct additives, storage temperature and packaging atmosphere can improve quality of meat.

Irradiation as food preservation method

[66]

Andrews and colleagues 2008 stresses the use of irradiation in fruits and vegetables as an insect control as an alternative to less effective methods. For grains such as rice and wheat, irradiation has been used to control infestation by fumigation resistant insects. For spices irradiation doses of 10 kGy were recommended to extend shelf life. Safety of meat may be improve with irradiation, so as it is happening with seafood products such as shrimps for the Asian and European markets

Electron spin resonance (ESR) detection of irradiated food

[67]

Electron spin resonance (ESR) may detect the radiation-induced radicals which persist, even after most of the radicals have decayed within days or weeks. Dodd 1995 calls it the most specific for the detection of irradiated food. Later, in 2008, Yu and Cheng provided a review of the use of this method used in nutraceutical and food research, microstructure change, phase transition and viscosity related properties during food formulation, processing, and storage. [68] Electron paramagnetic resonance EPR method to detect irradiation of soybean [69]

The gamma radiation dose in the 0.25 to 1.0 kGy range irradiation is permitted to control insect infestation of food. Sanyal and Sharma 2009 developed an electron paramagnetic resonance (EPR) spectrum method. The authors detected cellulose and phenoxyl radicals in the skin part of irradiated soybean. The authors suggest that that progressive saturation and thermal characteristics of induced radicals may be used to distinguish low doses irradiated soybean from thermally treated one. This method is applicable also in case of long storage, say the authors.

Relaxation behaviour of the radicals may be used to detect irradiation of cashew nuts

[70]

In 2008 Sanyal and Sajilata assessed the electron paramagnetic resonance (EPR) spectrum of free radicals formed during irradiation and compared it with those caused by conventional thermal treatment of cashew nuts. These signals found at irradiated cashew nuts were related to cellulose and CO 2 (-) radicals. An increase of the intensity of the central line (g = 2.0045) was found to be similar to that of thermal treated cashew nuts. The authors report, however, that irradiation of cashew nuts could be demonstrated by measuring the different relaxation and thermal behaviours of the free radicals, compared with those of roasted cashew nuts.

Radiation accidents emergency plan for Kuwait

[71] The Ministry of Health presented a radiation accidents emergency plan for Kuwait to deal with any radioactive pollution accidents.



Levels of radiation are monitored by 15 fixed and two mobile radiation detection stations. . Actual level of radiation in Kuwait ranges between 84 and 266 nanosievert (nSv) per hour which means that the average is 130 nSv/h. (Radiation in Germany varies between 50-60 nSv/h).



A strategic reserve of drugs for radiation-related illnesses, including up to 60 million doses of non-radioactive iodine for various radioactive categories and 18,000 bottles of medicine in syrup form for infants aged under three were provided to be ready for any nuclear accident.

New genetic mapping technique shows an evolutionary response to rapid climate change on mosquito

[72]

Scheiner, Bradshaw and colleagues 2010, analysed the genome of the pitcher plant mosquito, Wyeomyia smithii. using Restriction-site Associated DNA (RAD) sequencing technique. This mosquito lives within the water-filled leaves of the purple pitcher plant, Sarracenia purpurea, also known as the side-saddle flower, growing at the eastern seaboard of the U.S., the Great Lakes and southeastern Canada.



Using the RAD-Tag approach, the scientists have demonstrated that post-glacial populations of Wyeomyia smithii originated from a southern Appalachian Mountain refugium after recession of the Laurentide Ice Sheet some 22,000 to 19,000 years ago. The results of this study increases understanding of the genetic mechanism underlying photoperiod response to rapid climate change, responsible for the correct timing of dormancy, migration, development and reproduction in temperate organisms such as blood-feeding in mosquito vectors of dengue, encephalitis and malaria.



According to the authors the RAD-Tag protocol has increased the resolution of genetic relatedness among populations and may be used in fields from ecology and evolution to human behaviour and medicine, and may predict patterns of invasion of species during rapid climate change, and to correlate gene-based illnesses with susceptible human populations on a local or worldwide scale.



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