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Radioactive cesium was detected in the brown rice in the preliminary testing. Total 52 becquerels/kg of radioactive cesium was found, with 23 becquerels/kg of cesium-134 and 29 becquerels/kg of cesium-137. The amount was far below the national provisional safety limit (500 becquerels/kg total radioactive cesium).

Next to detect cesium in rice was Chiba.

According to the division for safe agriculture promotion in Chiba prefectural government, the brown rice taken at two locations within Shirai City on August 22 was tested. From one location, 47 becquerels/kg of radioactive cesium was detected, with cesium 134 22 becquerels/kg and cesium-137 25 becquerels/kg. The prefectural government plans to conduct the full survey on the brown rice after the harvest by the end of August, and if the rice tests under the provisional safety limit it will be allowed to be shipped.But in Fukushima, hardly any radioactive cesium was detected in the early harvest rice.

Chiba Prefecture announced on August 25 that 47 becquerels/kg of radioactive cesium was found in the mochi-rice (glutinous rice) grown in Shirai City in Chiba Prefecture in the preliminary test before the harvest to survey the effect of radioactive materials from the Fukushima I Nuclear Power Plant accident. The amount of radioactive cesium was far below the national provisional safety limit (500 becquerels/kg). It is the second case of radioactive cesium detection in the country, the first one being in Hokota City in Ibaraki Prefecture.

From Mainichi Shinbun (8/26/2011):

From Yomiuri Shinbun (8/26/2011):

Fukushima Prefecture announced on August 26 the test results of the early-harvest rice harvested in a location in Nihonmatsu City, two locations in Motomiya City, and one location in Koriyama City.

From the location in Nihonmatsu City, 22 becquerels/kg of radioactive cesium was found. No radioactive cesium was detected in all the other locations. Based on the results, the prefectural government has allowed the rice harvested in these locations, except for one in Motomiya City, to be shipped. It will be the first shipment of rice from Fukushima after the Fukushima I Nuclear Power Plant accident.

According to Fukushima Prefecture, two types of early-harvest rice harvested on August 25 and 26 were tested. When the rice in the Nihonmatsu City location was milled, no radioactive materials were detected. As to the location in Motomiya City (Arai-mura), the testing was done on all rice fields. If the results show the level of radioactive cesium is less than the provisional safety limit, the rice will be allowed to be shipped.

These cities are located in "Naka-dori" (middle third) of Fukushima Prefecture where highly radioactive rice hay has been found. 500,000 becquerels/kg of cesium was found in rice hay in Koriyama City, and in Motomiya City, 57 kilometers west of Fukushima I Nuke Plant, the number was even higher at 690,000 becquerels/kg. For your reference, Fukushima's radioactive cesium detection limit, according to the prefecture: 10 becquerels/kg

Radioactive cesium (cesium-137) in rice in Fukushima before the accident: ND to 0.14 becquerels/kg, after milling Radioactive cesium (cesium-137) in rice in Chiba before the accident: ND, after milling

Radioactive cesium (cesium-137) in rice in Ibaraki before the accident: ND to 0.045 becquerel/kg, after milling (source data for radioactive cesium in rice in Fukushima, Chiba, Ibaraki from Japan Chemical Analysis Center, from 2000 to 2009)

As for green tea, the tea producer was mixing the tea that passed the provisional safety limit but which still contained radioactive cesium with the tea made in Kyushu, far away from Fukushima I Nuke Plant. The blend was the radioactive tea 20%, the Kyushu tea 80%.Most water purification plants had voluntarily stopped shipping the radioactive sludge until the provisional safety limit was decided. However, the company who runs this particular water purification plant that continued to ship says, "The detection level was low. If the sludge was made into the garden soil it would be diluted further". The company blames the manufacturers who bought the radioactive sludge, saying "The ultimate responsibility rests with those who make [the sludge] into final products and sell them". The company is currently selling the radioactive sludge to the businesses that supply dirt for construction projects, as the national government has sent out an instruction that "the use of radioactive sludge in the garden soil had better be suspended".According to the green tea producer, there weren't enough of the tea leaves that passed the safety limit [but still contained radioactive cesium] to make it worthwhile to sell, so the company decided to mix it to make a "blend tea". The person in charge of the "blend tea" says "We made it clear in the package that it was a "blend tea", so there should be no problem. We just wanted to make the tea safer for the consumers".

SuspicionThese practices are not illegal, and when the contaminated products are mixed with non-contaminated products there should be less ill-effect on humans. However, if this "dilute and sell" model takes hold, it will only add to doubt and confusion for the consumers. Damage from "baseless rumors" may spread to milk and rice. It has been a standard practice to mix milk from different locations. The same goes for rice.The national consumer association federation chief proposes the detailed labeling of the place of manufacture on a prefectural level so that the consumers can choose safely.

However, there is no law requiring the place of manufacture for the garden soil, and there is no voluntary guideline by the industry either. The national standard for food labeling only requires the label "Made in Japan" in the case of "blended" produce like rice and tea and processed foods; there is no requirement to show the name of prefecture where the product is made. The Consumer Affairs Agency of Japan [which is supposed to regulate the industries with the welfare of consumers in mind] is not going to do anything at this point, saying "Places of manufacture for the blended goods may change, so it is not practical to require detailed labels".

On the other hand, the head of the Worldwide Agricultural Policy Information Center is critical. He says "The role of the national government is to stop the spread of radioactive materials. To allow goods with radioactive materials to be diluted and and sold widely would be considered as approval by the national government to spread the contamination [all over Japan]". JA agricultural co-op Fukushima is also distrustful of the government policy [or lack thereof], saying "There will be no "baseless rumors" if the produce that is found with radioactive materials is not sold".However, for now, we can only count on the voluntary effort by the industries. A new national policy would be necessary, just like when there was a problem of labeling "made in Japan" and "imported" goods.

he Fukushima disaster has been rated as a "level seven" on the International Nuclear and Radiological Event Scale (INES). This level, the highest, is the same as the Chernobyl nuclear disaster in 1986, and is defined by the scale as: "[A] major release of radioactive material with widespread health and environmental effects requiring implementation of planned and extended countermeasures."The Fukushima and Chernobyl disasters are the only nuclear accidents to have been rated level seven on the scale, which is intended to be logarithmic, similar to the scale used to describe the comparative magnitude of earthquakes. Each increasing level represents an accident approximately ten times more severe than the previous level.

Doctors in Japan are already treating patients suffering health effects they attribute to radiation from the ongoing nuclear disaster."We have begun to see increased nosebleeds, stubborn cases of diarrhoea, and flu-like symptoms in children," Dr Yuko Yanagisawa, a physician at Funabashi Futawa Hospital in Chiba Prefecture, told Al Jazeera.

She attributes the symptoms to radiation exposure, and added: "We are encountering new situations we cannot explain with the body of knowledge we have relied upon up until now.""The situation at the Daiichi Nuclear facility in Fukushima has not yet been fully stabilised, and we can't yet see an end in sight," Yanagisawa said. "Because the nuclear material has not yet been encapsulated, radiation continues to stream into the environment."

Al Jazeera's Aela Callan, reporting from Japan's Ibaraki prefecture, said of the recently detected high radiation readings: "It is now looking more likely that this area has been this radioactive since the earthquake and tsunami, but no one realised until now."Workers at Fukushima are only allowed to be exposed to 250 mSv of ionising radiation per year.

radioactive cesium exceeding the government limit was detected in processed tea made in Tochigi City, about 160km from the troubled Fukushima Daiichi nuclear plant, according to the Tochigi Prefectural Government, who said radioactive cesium was detected in tea processed from leaves harvested in the city in early July. The level is more than 3 times the provisional government limit.

anagisawa's hospital is located approximately 200km from Fukushima, so the health problems she is seeing that she attributes to radiation exposure causes her to be concerned by what she believes to be a grossly inadequate response from the government.From her perspective, the only thing the government has done is to, on April 25, raise the acceptable radiation exposure limit for children from 1 mSv/year to 20 mSv/year.

This has caused controversy, from the medical point of view," Yanagisawa told Al Jazeera. "This is certainly an issue that involves both personal internal exposures as well as low-dose exposures."Junichi Sato, Greenpeace Japan Executive Director, said: "It is utterly outrageous to raise the exposure levels for children to twenty times the maximum limit for adults."

The Japanese government cannot simply increase safety limits for the sake of political convenience or to give the impression of normality."Authoritative current estimates of the health effects of low-dose ionizing radiation are published in the Biological Effects of Ionising Radiation VII (BEIR VII) report from the US National Academy of Sciences.

he report reflects the substantial weight of scientific evidence proving there is no exposure to ionizing radiation that is risk-free. The BEIR VII estimates that each 1 mSv of radiation is associated with an increased risk of all forms of cancer other than leukemia of about 1-in-10,000; an increased risk of leukemia of about 1-in-100,000; and a 1-in-17,500 increased risk of cancer death.

r Helen Caldicott, the founding president of Physicians for Social Responsibility, a group that was awarded the Nobel Peace Prize in 1985, is equally concerned about the health effects from Japan's nuclear disaster."Radioactive elements get into the testicles and ovaries, and these cause genetic disease like diabetes, cystic fibrosis, and mental retardation," she told Al Jazeera. "There are 2,600 of these diseases that get into our genes and are passed from generation to generation, forever."

So far, the only cases of acute radiation exposure have involved TEPCO workers at the stricken plant. Lower doses of radiation, particularly for children, are what many in the medical community are most concerned about, according to Dr Yanagisawa.

Humans are not yet capable of accurately measuring the low dose exposure or internal exposure," she explained, "Arguing 'it is safe because it is not yet scientifically proven [to be unsafe]' would be wrong. That fact is that we are not yet collecting enough information to prove the situations scientifically. If that is the case, we can never say it is safe just by increasing the annual 1mSv level twenty fold."

Her concern is that the new exposure standards by the Japanese government do not take into account differences between adults and children, since children's sensitivity to radiation exposure is several times higher than that of adults.

Al Jazeera contacted Prime Minister Naoto Kan's office for comment on the situation. Speaking on behalf of the Deputy Cabinet Secretary for Public Relations for the Prime Minister's office, Noriyuki Shikata said that the Japanese government "refers to the ICRP [International Commission on Radiological Protection] recommendation in 2007, which says the reference levels of radiological protection in emergency exposure situations is 20-100 mSv per year. The Government of Japan has set planned evacuation zones and specific spots recommended for evacuation where the radiation levels reach 20 mSv/year, in order to avoid excessive radiation exposure."

he prime minister's office explained that approximately 23bn yen ($300mn) is planned for decontamination efforts, and the government plans to have a decontamination policy "by around the end of August", with a secondary budget of about 97bn yen ($1.26bn) for health management and monitoring operations in the affected areas. When questioned about the issue of "acute radiation exposure", Shikata pointed to the Japanese government having received a report from TEPCO about six of their workers having been exposed to more than 250 mSv, but did not mention any reports of civilian exposures.

Prime Minister Kan's office told Al Jazeera that, for their ongoing response to the Fukushima crisis, "the government of Japan has conducted all the possible countermeasures such as introduction of automatic dose management by ID codes for all workers and 24 hour allocation of doctors. The government of Japan will continue to tackle the issue of further improving the health management including medium and long term measures". Shikata did not comment about Kodama's findings.

Kodama, who is also a doctor of internal medicine, has been working on decontamination of radioactive materials at radiation facilities in hospitals of the University of Tokyo for the past several decades. "We had rain in Tokyo on March 21 and radiation increased to .2 micosieverts/hour and, since then, the level has been continuously high," said Kodama, who added that his reporting of radiation findings to the government has not been met an adequate reaction. "At that time, the chief cabinet secretary, Mr Edano, told the Japanese people that there would be no immediate harm to their health."

Kodama is an expert in internal exposure to radiation, and is concerned that the government has not implemented a strong response geared towards measuring radioactivity in food. "Although three months have passed since the accident already, why have even such simple things have not been done yet?" he said. "I get very angry and fly into a rage."

Radiation has a high risk to embryos in pregnant women, juveniles, and highly proliferative cells of people of growing ages. Even for adults, highly proliferative cells, such as hairs, blood, and intestinal epithelium cells, are sensitive to radiation."

Early on in the disaster, Dr Makoto Kondo of the department of radiology of Keio University's School of Medicine warned of "a large difference in radiation effects on adults compared to children".Kondo explained the chances of children developing cancer from radiation exposure was many times higher than adults.

Children's bodies are underdeveloped and easily affected by radiation, which could cause cancer or slow body development. It can also affect their brain development," he said.Yanagisawa assumes that the Japanese government's evacuation standards, as well as their raising the permissible exposure limit to 20mSv "can cause hazards to children's health," and therefore "children are at a greater risk".

Nishio Masamichi, director of Japan's Hakkaido Cancer Centre and a radiation treatment specialist, published an article on July 27 titled: "The Problem of Radiation Exposure Countermeasures for the Fukushima Nuclear Accident: Concerns for the Present Situation". In the report, Masamichi said that such a dramatic increase in permitted radiation exposure was akin to "taking the lives of the people lightly". He believes that 20mSv is too high, especially for children who are far more susceptible to radiation.

n early July, officials with the Japanese Nuclear Safety Commission announced that approximately 45 per cent of children in the Fukushima region had experienced thyroid exposure to radiation, according to a survey carried out in late March. The commission has not carried out any surveys since then.

Now the Japanese government is underestimating the effects of low dosage and/or internal exposures and not raising the evacuation level even to the same level adopted in Chernobyl," Yanagisawa said. "People's lives are at stake, especially the lives of children, and it is obvious that the government is not placing top priority on the people's lives in their measures."Caldicott feels the lack of a stronger response to safeguard the health of people in areas where radiation is found is "reprehensible".

Millions of people need to be evacuated from those high radiation zones, especially the children."

Dr Yanagisawa is concerned about what she calls "late onset disorders" from radiation exposure resulting from the Fukushima disaster, as well as increasing cases of infertility and miscarriages."Incidence of cancer will undoubtedly increase," she said. "In the case of children, thyroid cancer and leukemia can start to appear after several years. In the case of adults, the incidence of various types of cancer will increase over the course of several decades."Yanagisawa said it is "without doubt" that cancer rates among the Fukushima nuclear workers will increase, as will cases of lethargy, atherosclerosis, and other chronic diseases among the general population in the effected areas.

Radioactive food and water

An August 1 press release from Japan's MHLW said no radioactive materials have been detected in the tap water of Fukushima prefecture, according to a survey conducted by the Japanese government's Nuclear Emergency Response Headquarters. The government defines no detection as "no results exceeding the 'Index values for infants (radioactive iodine)'," and says "in case the level of radioactive iodine in tap water exceeds 100 Bq/kg, to refrain from giving infants formula milk dissolved by tap water, having them intake tap water … "

Yet, on June 27, results were published from a study that found 15 residents of Fukushima prefecture had tested positive for radiation in their urine. Dr Nanao Kamada, professor emeritus of radiation biology at Hiroshima University, has been to Fukushima prefecture twice in order to take internal radiation exposure readings and facilitated the study.

The risk of internal radiation is more dangerous than external radiation," Dr Kamada told Al Jazeera. "And internal radiation exposure does exist for Fukushima residents."According to the MHLW, distribution of several food products in Fukushima Prefecture remain restricted. This includes raw milk, vegetables including spinach, kakina, and all other leafy vegetables, including cabbage, shiitake mushrooms, bamboo shoots, and beef.

he distribution of tealeaves remains restricted in several prefectures, including all of Ibaraki, and parts of Tochigi, Gunma, Chiba, Kanagawa Prefectures.Iwate prefecture suspended all beef exports because of caesium contamination on August 1, making it the fourth prefecture to do so.

yunichi Tokuyama, an expert with the Iwate Prefecture Agricultural and Fisheries Department, told Al Jazeera he did not know how to deal with the crisis. He was surprised because he did not expect radioactive hot spots in his prefecture, 300km from the Fukushima nuclear plant."The biggest cause of this contamination is the rice straw being fed to the cows, which was highly radioactive," Tokuyama told Al Jazeera.

Kamada feels the Japanese government is acting too slowly in response to the Fukushima disaster, and that the government needs to check radiation exposure levels "in each town and village" in Fukushima prefecture."They have to make a general map of radiation doses," he said. "Then they have to be concerned about human health levels, and radiation exposures to humans. They have to make the exposure dose map of Fukushima prefecture. Fukushima is not enough. Probably there are hot spots outside of Fukushima. So they also need to check ground exposure levels."

Radiation that continues to be released has global consequences.More than 11,000 tonnes of radioactive water has been released into the ocean from the stricken plant.

Those radioactive elements bio-concentrate in the algae, then the crustaceans eat that, which are eaten by small then big fish," Caldicott said. "That's why big fish have high concentrations of radioactivity and humans are at the top of the food chain, so we get the most radiation, ultimately."

9. The Mediterranean

For years, there have been allegations that the ‘Ndrangheta syndicate of the Italian mafia has been using the seas as a convenient location in which to dump hazardous waste — including radioactive waste — charging for the service and pocketing the profits. An Italian NGO, Legambiente, suspects that about 40 ships loaded with toxic and radioactive waste have disappeared in Mediterranean waters since 1994. If true, these allegations paint a worrying picture of an unknown amount of nuclear waste in the Mediterranean whose true danger will only become clear when the hundreds of barrels degrade or somehow otherwise break open. The beauty of the Mediterranean Sea may well be concealing an environmental catastrophe in the making.

8. The Somalian Coast

The Italian mafia organization just mentioned has not just stayed in its own region when it comes to this sinister business. There are also allegations that Somalian waters and soil, unprotected by government, have been used for the sinking or burial of nuclear waste and toxic metals — including 600 barrels of toxic and nuclear waste, as well as radioactive hospital waste. Indeed, the United Nations’ Environment Program believes that the rusting barrels of waste washed up on the Somalian coastline during the 2004 Tsunami were dumped as far back as the 1990s. The country is already an anarchic wasteland, and the effects of this waste on the impoverished population could be as bad if not worse than what they have already experienced.

7. Mayak, Russia

3. Mailuu-Suu, Kyrgyzstan

6. Sellafield, UK

Located on the west coast of England, Sellafield was originally a plutonium production facility for nuclear bombs, but then moved into commercial territory. Since the start of its operation, hundreds of accidents have occurred at the plant, and around two thirds of the buildings themselves are now classified as nuclear waste. The plant releases some 8 million liters of contaminated waste into the sea on a daily basis, making the Irish Sea the most radioactive sea in the world. England is known for its green fields and rolling landscapes, but nestled in the heart of this industrialized nation is a toxic, accident-prone facility, spewing dangerous waste into the oceans of the world.

5. Siberian Chemical Combine, Russia

Mayak is not the only contaminated site in Russia; Siberia is home to a chemical facility that contains over four decades' worth of nuclear waste. Liquid waste is stored in uncovered pools and poorly maintained containers hold over 125,000 tons of solid waste, while underground storage has the potential to leak to groundwater. Wind and rain have spread the contamination to wildlife and the surrounding area. And various minor accidents have led to plutonium going missing and explosions spreading radiation. While the snowy landscape may look pristine and immaculate, the facts make clear the true level of pollution to be found here

4. The Polygon, Kazakhstan

Once the location for the Soviet Union’s nuclear weapons testing, this area is now part of modern-day Kazakhstan. The site was earmarked for the Soviet atomic bomb project due to its “uninhabited” status — despite the fact that 700,000 people lived in the area. The facility was where the USSR detonated its first nuclear bomb and is the record-holder for the place with the largest concentration of nuclear explosions in the world: 456 tests over 40 years from 1949 to 1989. While the testing carried out at the facility — and its impact in terms of radiation exposure — were kept under wraps by the Soviets until the facility closed in 1991, scientists estimate that 200,000 people have had their health directly affected by the radiation. The desire to destroy foreign nations has led to the specter of nuclear contamination hanging over the heads of those who were once citizens of the USSR.

The industrial complex of Mayak, in Russia's north-east, has had a nuclear plant for decades, and in 1957 was the site of one of the world’s worst nuclear accidents. Up to 100 tons of radioactive waste were released by an explosion, contaminating a massive area. The explosion was kept under wraps until the 1980s. Starting in the 1950s, waste from the plant was dumped in the surrounding area and into Lake Karachay. This has led to contamination of the water supply that thousands rely on daily. Experts believe that Karachay may be the most radioactive place in the world, and over 400,000 people have been exposed to radiation from the plant as a result of the various serious incidents that have occurred — including fires and deadly dust storms. The natural beauty of Lake Karachay belies its deadly pollutants, with the radiation levels where radioactive waste flows into its waters enough to give a man a fatal dose within an hour.

Considered one of the top ten most polluted sites on Earth by the 2006 Blacksmith Institute report, the radiation at Mailuu-Suu comes not from nuclear bombs or power plants, but from mining for the materials needed in the processes they entail. The area was home to a uranium mining and processing facility and is now left with 36 dumps of uranium waste — over 1.96 million cubic meters. The region is also prone to seismic activity, and any disruption of the containment could expose the material or cause some of the waste to fall into rivers, contaminating water used by hundreds of thousands of people. These people may not ever suffer the perils of nuclear attack, but nonetheless they have good reason to live in fear of radioactive fallout every time the earth shakes.

2. Chernobyl, Ukraine

Home to one of the world’s worst and most infamous nuclear accidents, Chernobyl is still heavily contaminated, despite the fact that a small number of people are now allowed into the area for a limited amount of time. The notorious accident caused over 6 million people to be exposed to radiation, and estimates as to the number of deaths that will eventually occur due to the Chernobyl accident range from 4,000 to as high as 93,000. The accident released 100 times more radiation than the Nagasaki and Hiroshima bombs. Belarus absorbed 70 percent of the radiation, and its citizens have been dealing with increased cancer incidence ever since. Even today, the word Chernobyl conjures up horrifying images of human suffering.

1. Fukushima, Japan

The 2011 earthquake and tsunami was a tragedy that destroyed homes and lives, but the effects of the Fukushima nuclear power plant may be the most long-lasting danger. The worst nuclear accident since Chernobyl, the incident caused meltdown of three of the six reactors, leaking radiation into the surrounding area and the sea, such that radiative material has been detected as far as 200 miles from the plant. As the incident and its ramifications are still unfolding, the true scale of the environmental impact is still unknown. The world may still be feeling the effects of this disaster for generations to come.

The new policy was revealed during the meeting of experts affiliated with the Ministry of the Environment on August 27. So far, the Ministry's policy has been to allow the ashes with 8,000 becquerels/kg of radioactive cesium and below to be buried, but require the ashes that exceed that level to be stored temporarily while the Ministry decides on the disposal method.

Under the new policy, if radioactive cesium in the ashes exceeds 8,000 becquerels/kg but does not exceed 100,000 becquerels/kg, the ashes are allowed to be buried after they are bound with cement or put in a concrete container. If radioactive cesium exceeds 100,000 becquerels, then the ashes should be buried in the disposal facilities with a roof and/or with the concrete shield.

Radioactive cesium exceeding 8,000 becquerels/kg has been detected from the ashes from burning the regular household garbage in Kanto and Tohoku regions. The Ministry of the Environment has decided to apply the same rule as the disaster debris and allow the ashes to be buried. The municipalities will be able to bury the ashes that they have stored temporarily, but it may be difficult to obtain consent from the residents living near the disposal facilities.

The number "100,000 becquerels/kg" is significant in a sense, as the highest level of radioactive cesium found from ashes after burning the household garbage is 95,300 becquerels/kg in Fukushima Prefecture (link in Japanese). The number is high enough to clear the Fukushima garbage ashes, and it is probably high enough to clear garbage ashes from anywhere else.

Besides, as the NHK article states, even if it exceeds 100,000 becquerels/kg, all they need to do is to bury it in a disposal site with a roof or the concrete shield. This new policy is to be applied to ashes from disaster debris and regular garbage that are radioactive. It's not mentioned in the article but the ashes and slag from the radioactive sewage sludge will be likely to be disposed under the same policy - i.e. burn and bury. (And remember the "mix and match" scheme.)

In the meantime, some garbage incinerators and sludge incinerators at waste processing plants and sewage treatment plants in cities in Kanto have become so radioactive that they have to be shut down. (More later.) The entire country is to become the nuclear waste disposal site, because of one wrecked nuclear power plant. Talk about socializing the cost.

NOTHING happend to the fuel in the pools at Fukushima. I would like to see some evidence other than the word of an activist who frightens kids for a living to support Gunter’s rant about peices of fuel being ejected miles away. From the looks of that video, the fuel didn’t move an inch. There is also a poll associated with the article. The poll discloses that it is completely unscientific, since it allows anyone to vote and is not based on randomly selected participants. However, I think that the results as of 0315 this morning are pretty amusing since the antinuclear opinion piece has been posted for nearly a week.

95% disagree with “Beyond Nuclear”. Let’s make it 99% by Rod Adams on October 14, 2011 in Antinuclear activist, Politics of Nuclear Energy, Unreliables, Wind energy Share0 One of the more powerful concepts that I studied in college was called “groupthink.” The curriculum developers in the history department at the US Naval Academy thought it was important for people in training to become leaders in the US Navy learn to seek counsel and advice from as broad a range of sources as possible. We were taught how to avoid the kind of bad decision making that can result by surrounding oneself with yes-men or fellow travelers. The case study I remember most was the ill fated Bay of Pigs invasion where virtually the entire Kennedy Administration cabinet thought that it would be a cakewalk. If Patricia Miller had bothered to do the fact-checking required by journalistic integrity she would have come across this video showing 30 feet of water above the fuel at Fukushima with all of the fuel bundles exactly where they’re supposed to be.Aside: Don’t we live in an amazing world? I just typed “Bay of Pigs groupthink” into my browser search box and instantly hit on exactly the link I needed to support the statement above. It even cites the book we used when I was a plebe in 1977, more than 33 years ago. End Aside. Not everyone, however, has the benefit of early leadership lessons about the danger of believing that a small group of likeminded people can provide actionable advice. Some of the people who are most likely to be victims of groupthink are those who adamantly oppose the continued safe operation of emission-free nuclear power plants. The writers who exclusively quote members of that tiny community have also fallen into the groupthink trap.  On October 8, 2011, the Berkeley Patch, a New Jersey based journal that regularly posts negative stories about Oyster Creek, featured an article titled Petitioners to NRC: Shut Down All Fukushima-Like Nuclear Plants . Here is a snapshot of the masthead, the headline and the lede. The article is a diatribe that quotes people on the short list of frequently quoted antinuclear activists including Paul Gunter, Michael Mariotte, Kevin Kamps, Deb Katz and Dale Bridenbaugh. The author faithfully reproduces some of their best attempts to spread fear, uncertainty and doubt using untruths about the actual events at Fukushima. For example, the article uses the following example of how antinuclear activists are still trying to spread the myth that the used fuel pools at Fukushima caught fire. Oyster Creek – the oldest nuclear plant in the United States – has generated over 700 tons of high-level radioactive waste, Kevin Kamps of Beyond Nuclear said. “Granted that some of that has been moved into dry cast storage, but the pool remains full to its capacity,” Kamps said. “And this was a re-rack capacity. Much later in terms of quantity of high level radioactive waste than it was originally designed for.” This represents 125 million curies of radioactive cesium-137 and the NRC has reported that up to 100 percent of the hazardous material could be released from a pool fire, Kamps said. “I would like to point out that Fukushima Daiichi units one, two, three and four combined in terms of the inventory of high level radioactive waste in their storage pools does not match some of these reactors I mentioned in terms of how much waste is in these pools,” Kamps said. “So the risks are greater here for boil downs and the consequences of a radioactive fire in these pools.” Fortunately, the people who are not a part of the antinuclear community are finally beginning to recognize their own strength and to realize that they do not have to remain silent while the lies are being spread. Here is how a knowledgable commenter responded to the above segment of the article: If Patricia Miller had bothered to do the fact-checking required by journalistic integrity she would have come across this video showing 30 feet of water above the fuel at Fukushima with all of the fuel bundles exactly where they’re supposed to be.

“It took a really extraordinary event for 95 percent of the people in the world to know about it,” he said. “If they know about Fukushima, they know about Mark 1 reactors exploding in the air and releasing toxic radiation across the world and they know that’s not a good thing. Something has to be done to make sure that never happens again.” I could not let that one pass without a comment; I am quite sure that Mariotte has once again fallen victim to the fact that he surrounds himself with people who echo his own prejudices. Here is my response.

Marriotte makes an interesting statement by he claiming that “95% of the people in the world” know about Fukushima. That statement might be true about the people in the United States, where advertiser-supported television news programs covered the events with breathless hype for several months. I am pretty sure that you would have a difficult time finding anyone in China, central Africa, the Asian subcontinent, South America or the Middle East who can even pronounce Fukushima, much less know anything about GE Mark 1 containments. Most of them would not even know that they should be worried about radiation because they have never been taught to be afraid of something that they cannot smell, feel, taste, or hear especially when it occurs at levels that have no chance of making them sick within their expected lifetime. Mariotte, Gunter, Kamps, Katz and Bridenbaugh are all members of a vocal, but tiny group of people who have been carrying the water of the fossil fuel industry for decades by opposing nuclear energy, the only real competitor it has. They are victims of groupthink who believe that their neighbors in Takoma Park are representative of the whole world.

Just before making this comment, I voted in the unscientific poll associated with the article. 95% say that Oyster Creek should keep on powering New Jersey homes and businesses. They are not impressed by the Beyond Nuclear FUD; they like clean electricity.

the sheer amount of radioactive rubble is proving difficult to process. The municipal government of Kashiwa, in Chiba Prefecture to the west and south of Tokyo, recently shut down one of its main incinerators, because it can’t store any more than the 200 metric tons of radioactive ash it already has that is too contaminated to bury in a landfill.

According to the California-based Fukushima Fallout Awareness Network (FFAN), burning Fukushima’s radioactive rubble is the worst possible way to deal with the problem. That’s because incinerating it releases much more radioactivity into the air, not only magnifying the contamination all over Japan but also sending it up into the jet stream. Once in the jet stream, the radioactive particles travel across the Northern Hemisphere, coming back down to earth with rain, snow, or other precipitation.

Radiation used to be a word that evoked serious concern in a lot of people. However, the nuclear industry and its supporters have done a masterful job in allaying public fears about it. They do this in significant part by relying on outdated and highly questionable data collected on Japanese atom bomb survivors, while at the same time ignoring and dismissing inconvenient but much more relevant evidence that shows the actual harmful effects of radiation exposure from nuclear accidents. Author Gayle Greene explains this well in a recent article here. In their attempt to win the public over to their viewpoint, nuclear proponents even trot out the dubious theory of radiation hormesis, which says that low doses of radiation are actually good for you, because they stimulate an immune response. Well, so does something that causes an allergic reaction. But I digress…

“Plutonium is biologically and chemically attracted to bone as is the naturally occurring radioactive chemical radium. However, plutonium clumps on the surface of bone, delivering a concentrated dose of alpha radiation to surrounding cells, whereas radium diffuses homogeneously in bone and thus has a lesser localized cell damage effect. This makes plutonium, because of the concentration, much more biologically toxic than a comparable amount of radium.”

different radioisotopes give off different kinds of radiation—alpha, beta, gamma, X ray, or neutron emissions—all of which behave differently. Alpha emitters, such as plutonium and radon, are intensely ionizing but don’t penetrate very far and generally can’t get through the dead layers of cells covering skin. But when they are inhaled from the air or ingested from radiation-contaminated food or water, they emit high-energy particles that can do serious damage to the cells of sensitive internal soft tissues and organs. The lighter, faster-moving beta particles can penetrate far more deeply than alpha particles, though sheets of metal and heavy clothing can block them. Beta particles are also very dangerous when inhaled or ingested. Strontium-90 and tritium, a radioactive form of hydrogen, are both beta emitters. Gamma radiation is a form of electromagnetic energy like X rays, and it passes through clothing and skin straight into the body. A one-inch shield of either lead or iron, or eight inches of concrete are needed to stop gamma rays, examples of which include cobalt-60 and cesium-137—one of the radionuclides of most concern in the Fukushima fallout

The behavior of radioisotopes out in the environment also varies depending on what they encounter. They can combine with one another or with stable chemicals to form molecules that may or may not dissolve in water. They can combine with solids, liquids, or gases at ordinary temperature and pressure. They may be able to enter into biochemical reactions, or they may be biologically inert.

In her book No Immediate Danger: Prognosis for a Radioactive Earth, Bertell notes that if they enter the body either through air, food, water, or an open wound, “They may remain near the place of entry into the body or travel in the bloodstream or lymph fluid. They can be incorporated into the tissue or bone. They may remain in the body for minutes or hours or a lifetime.”

radioactive elements, also known as radioisotopes or radionuclides, are unstable atoms. They seek stability by giving off particles and energy—ionizing radiation—until the radioisotope becomes stable. This process occurs within the nucleus of the radioisotope, and the shedding of these particles and energy is commonly referred to as ‘‘nuclear disintegration.’’ Nuclear radiation expert Rosalie Bertell describes the release of energy in each disintegration as ‘‘an explosion on the microscopic level.” This process is known as the “decay chain,” and during their decay, most radioactive elements morph into yet other radioactive elements on their journey to becoming lighter, stable atoms at the end of the chain. Some of the morphed-into elements are much more dangerous than the original radioisotope, and the decay chain can take a very long time. This is the reason that radioactive contamination can last so long

the EPA was so confident that Fukushima fallout would not be a problem for U.S. citizens that it stopped its specific monitoring of fallout from Fukushima less than two months after the meltdowns began. But neglecting to monitor the fallout will not make it go away. In fact, another enormous problem with radioactive contamination is that it bioaccumulates in the environment, which means it concentrates as it moves up the food chain.

I put 4 nephila cravatas together in the germanium semiconductor detector, and analyzed radioactive cesium (Cs-137 and Cs-134) (Picture 1). Then I noticed an unknown energy peak at 657.8keV, right next to the energy peak of Cs-137 at 661.7keV (Chart 2).

When I identified this peak, it turned out to be one of the 4 gamma-ray peaks from Ag-110m (nuclear isomer of silver, half life 249.5 days). The other 3 peaks were also detected (Chart 3).

So, the conclusion is that nephila clavatas have concentrated a minute amount of radioactive silver (Ag-110m), which is one of the radioactive fallout materials from Fukushima I Nuclear Power Plant.

Cs-134(2.9Bq/4匹 )＋Cs-137(3.9Bq/4匹) = 3656Bq /kg

Ag-110m (2.6Bq/4匹)＝1397Bq /kg

The densities of the radioactive materials in the spiders were:Radioactive cesium:Cs-134 (2.9 Bq/4 spiders) + Cs-137 (3.9 Bq/4 spiders) = 3,656 Bq/kg live weight　versusRadioactive silver:Ag-110m (2.6 Bq/4 spiders) = 1,397 Bq/kg live weight

In the forest where the spiders were caught, the ratio of radioactive cesium (134+137) to Ag-110m was about 2,500 to 1. Using the above numbers, I calculated that nephila clavatas bio-concentrated the radioactive silver in the soil to about 1,000 times

This is the first discovery in the world that an insect highly concentrates silver. Also, it is evident that bio-concentration of radioactivity in the forest has already started.

I will present the details of my research on Saturday November 26 at the Japanese Society of Science and Plant Nutrition's Kanto Branch meeting (Faculty of Horticulture at Chiba University in Matsudo City, Chiba). Please come

In Chernobyl the radioactivity level was 555,000.00 radioactive molecular nuclear explosions per second per 39 square inches.”

By contrast, delusional Japanese “public officials” declared deadly radioactive areas a simple Picnic and Recreation Grounds, thus sacrificing in place an unsuspecting public. Dr Scampa concluded:

“This amount for a 39 square inch reading is, in fact, situated between a minimum deposit of 2.96 Million radioactive molecular nuclear explosions per 39 square inches of very energetic gamma rays from radioactive elements such as Cobalt 60 or  Rubidium 90 on the low side; and, the  maximum is a deposit of 74 Million radioactive molecular nuclear explosions per 39 square inches for low energy gamma rays from radioactive elements such as Uranium 238. A single particle of this fuel stuck in the human body is about 350 times the Maximum Annual Radiation Dose Permissible.”

Metric Unit Measurements Dr Scampa:

“An absorbed dose of 40,0 microSieverts/hour at 1 meter above ground means an average deposit of 1,233E7 Bq/m2 of Cs137 (0,661 MeV.) This is 22 times greater than the IAEA Chernobyl Nuclear Reactor Disaster Exclusion Zone value of 555,000 Bq/m2. This amount for 1 meter above the ground is, in fact, situated between a maximum deposit of 7,400E7 Bq/m2 for low energy gamma rays from radioactive elements such as Uranium 238 (0,0495 MeV) and a minimum deposit of  2,960E6 Bq/m2 of very energetic gamma rays from radioactive elements such as Cobalt 60 (2,55 MeV) or Rubidium 90 (0,881 – 4,2 MeV).

A single particle of this fuel immobilised in the body corresponds to 350 times the Maximum Annual Radiation Dose Permissible. By contrast, delusional Japanese “public officials” declared deadly radioactive areas just a simple Picnic and Recreation Ground; thus sacrificing in place an unsuspecting public.”

The Ministry did the survey twice in June and August. It selected the survey locations from the areas that showed relatively high level of cesium deposition in soil in the Ministry's aerial survey after the accident. 50 river locations and 51 wells were selected. Radioactive cesium and iodine-131 were measured in all 101 locations. Strontium and plutonium were measured in 10 river locations where the air radiation was high. Similarly, at 6 wells, only strontium was measured.

The highest cesium-137 (half life 30 years) for the river water was detected in Mano District in Minami Soma City (37 kilometers north by northwest from the nuke plant), at 2.0 becquerels/kg. The average amount of cesium-137 in river water was 0.58 becquerels/kg. The highest cesium-137 for the well water was detected in Nukazawa in Motomiya City (54 kilometers west of the plant), at 1.1 becquerels/kg. The average for well water was 0.49 becquerels/kg.

According to the Ministry of Education and Science, "Radioactive materials in both river water and well water are far below the provisional safety limit of 200 becquerels/kg". However, according to the Ministry's national survey in 2009, the highest level in river water was found in Akita Prefecture at 0.00037 becquerels/kg (ND in Fukushima). So, 2.0 becquerels/kg of cesium-137 detected this time in Fukushima is 5,400 times as much as the highest level in 2009 in river water. As to 1.1 becquerels/kg of cesium-137 from the well water, it is 6,500 times as much as the highest level detected in tap water in 2009.

The largest amount of strontium-90 (half life 30 years) was detected in a river in Onahama in Iwaki City, at 0.018 becquerels/kg, 5.14 times the level detected in the 2009 survey. Strontium-90 in well water was the same level as before the accident. Plutonium and iodine-131 were below the detection limit.

According to the Ministry's calculation on the internal radiation if one drinks the river water that had the maximum amount of radioactive materials for one year, cesium-137 would result in 0.025 millisievert, and strontium-90 in 0.00049 millisievert.Hmmm. They tested an alpha emitter (plutonium) and a beta emitter (strontium) in water in locations with high air radiation? What does high air radiation have to do with alpha and beta emitters? And what about other nuclides, like cobalt-60?The Ministry of Education tested water at these locations twice: first in late June to early July, then in early August. Looking at the result, there are two locations where the amount of radioactive cesium significantly INCREASED during the one month, indicating perhaps the inflow of radioactive materials from the surrounding mountains.The Ministry's document has very poor resolution, but here's the page that shows charts of cesium-137 detections (page 19 in the document):

To accelerate the decontamination work, the Kan administration has decided to set up an office to deal with radioactive contamination within the Cabinet and a decontamination team in Fukushima Prefecture.

The education and science ministry estimates that radiation accumulation at 35 places inside the warning area in a period of one year from the start of the nuclear fiasco will exceed 20 millisieverts per year, a level sufficient enough to trigger an evacuation order. At 14 of these places, it is estimated that the radiation level will be more than 100 millisieverts per year. At one place, it is estimated that the level will be 508.1 millisieverts per year and at another 223.7 millisieverts per year.

The data underline the need for the central government to carry out decontamination work methodically and with perseverance. It also should take a serious look at the fact that radioactive contamination has spread outside Fukushima Prefecture. Beef cows in many parts of eastern Japan were fed on radioactive rice straw and the cows were was shipped to all the prefectures except Okinawa. Radioactive contamination has also been detected in sludge of sewage treatment plants in many parts of eastern Japan.

The central government must establish methods to decontaminate areas so that local governments can easily emulate them. It is expected to collect necessary data from a model project in the Ryozan area in Date, Fukushima Prefecture. Decontamination will be carried out in an area of 100-meter-by-100-meter square that will include agricultural fields and houses with extremely high radiation levels.

Depending on the nature of soil, the central government will try several decontamination methods such as directing high pressure water to wash away radioactive substances and removing soil after hardening it with chemicals. After determining the cost and benefit of the contamination work, and the amount of radioactive substances collected, it will write a decontamination manual as well as develop computer software to measure the effect of decontamination work.

Another problem is how to deal with radioactive rubble in areas devastated by the March 11 earthquake and tsunami, and radioactive sludge that has accumulated at sewage treatment plants. Decontamination of areas contaminated with radioactive substances will also produce contaminated soil. The central government must hurriedly find places for long-term storage of contaminated rubble, sludge and soil.

Your Party has made a reasonable proposal concerning decontamination work. It calls for giving priority to decontaminating areas close to Fukushima No. 1, radiation "hot spots," as well as kindergartens and parks. Its main aim is to minimize the effect of radiation on children and pregnant women. The central government and other parties should carefully study the proposal and take legislative and other necessary actions.

To ensure effective decontamination, detailed radiation maps will be indispensable. A reliable system to accurately gauge radiation levels of various foods also should be set up. Decontamination will be a difficult and time-consuming task. It is important that the central and local governments give accurate information about the situation to local residents and avoid giving a false hope about when evacuees can return to their homes. The central government envisages a long-term goal of limiting people's radiation exposure to 1 millisievert per year. But Mr. Shunichi Tanaka, a former acting chairman of the Atomic Energy Commission, who carried out decontamination work in Iidate and Date in Fukushima Prefecture, says that in some places in the prefecture, it is impossible to lower the radiation level to 1 millisievert per year and that a realistic goal should be 5 millisieverts per year. Informed public discussions should be held on this point.

According to the draft of the recommendation in July, the Food Safety Commission was aiming at setting "100 millisieverts lifetime limit" that would include the external radiation exposure from the nuclides in the air. However, based on the opinions from the general public, the Commission decided that the effect of external radiation exposure was small and focused only on internal radiation exposure from food.

If we suppose one's lifetime is 100 years, then 1 millisievert per year would be the maximum. The current provisional safety limit assumes the upper limit of 5 millisievert per year with radioactive cesium alone. So the new regulations will inevitably be stricter than the current provisional safety limits.

In addition, the Commission pointed out that children "are more susceptible to the effect of radiation", but it didn't cite any specific number for children. The Commission explained that it would be up to the Ministry of Health and Labor and other agencies to discuss" whether the effect on children should be reflected in the new safety limits.Oh boy. So many holes in the article.First, I suspect it is a rude awakening for many Japanese to know that the current provisional safety limits for radioactive materials in food presuppose very high internal radiation level already. The Yomiuri article correctly says 5 millisieverts per year from radioactive cesium alone. The provisional safety limit for radioactive iodine, though now it's almost irrelevant, is 2,000 becquerels/kg, and that presupposes 2 millisieverts per year internal radiation. From cesium and iodine alone, the provisional safety limits on food assume 7 millisievert per year internal radiation.

(The reason why the radioactive iodine limit is set lower than that for radioactive cesium is because radioactive iodine all goes to thyroid gland and gets accumulated in the organ.)I am surprised that Yomiuri even mentioned the 5 millisieverts per year limit from cesium exposure alone. I suspect it is the first time ever for the paper.Second, the article says the Commission decided to exclude external radiation from the "100 millisieverts" number because of the public opinion. Which "public" opinion are they talking about? Mothers and fathers with children? I doubt it. If anything, the general public (at least those who doesn't believe radiation is good for them) would want to include external radiation so that the overall radiation limit is set, rather than just for food.

Third, and most importantly, if the proposed lifetime limit of 100 millisieverts is only for internal radiation from FOOD, then the overall internal radiation could be much higher. Why? Because, pre-Fukushima, the natural internal radiation from food in Japan was only 0.41 millisievert per year (mostly from K-40), or 28% of total natural radiation exposure per year of 1.45 millisievert (average). Of internal radiation exposure, inhaling radon is 0.45 millisievert per year in Japan, as opposed to the world average of 1.2 millisievert per year.Now, these so-called experts in the government commission are saying the internal radiation from food can be 1 millisievert per year (assuming the life of 100 years), in addition to the natural internal radiation from food (K-40) which is 0.41 millisievert per year. Then, you will have to add internal exposure from inhaling the radioactive materials IN ADDITION TO radon which is 0.45 millisievert per year.

Winter in the Pacific Ocean side of east Japan is dry, particularly in Kanto. North wind kicks up dust, and radioactive materials in the dust will be kicked up. The Tokyo metropolitan government will be burning away the radioactive debris from Iwate Prefecture (Miyagi's to follow) into the wintry sky. So-called "decontamination" efforts all over east Japan will add more radioactive particles in the air for people to breathe in.

For your information, the comparison of natural radiation exposure levels (the world vs Japan), from the Nuclear Safety Research Association Handbook on treating acute radiation injury (original in Japanese; my translation of labels). Japan has (or had) markedly lower radon inhalation than the world average, and much lower external radiation from the ground and from cosmic ray. It makes it all up by overusing the medical X-rays and CT scans, and even the Nuclear Safety Research Association who issued the following table says Japan tends to use too many X-rays and scans and that the medical professionals should make effort not to overuse them.

TEPCO intentionally dumped radioactive materials into the ocean, as they had no additional room for storage, the levels showed no signs of decreasing, and all desalination hopes were falling woefully short.  It would also be found that many leaks around, and inside of the reactors were also finding their way into the Pacific, but the public was told that there would not be any risk to them, or the living creatures in the sea. After 7 months however, impact can be found all over the island nation, and spreading throughout the ocean, despite the expectations it would merely be diluted exponentially. In September, scientists from the government's Meteorological Research Institute and the Central Research Institute of the Electric Power Industry announced their findings at a meeting of the Geochemical Society of Japan, adding that some of the cesium will also flow into the Indian Ocean and, eventually, reach the Atlantic.

Floating Radioactive Debris Reaching Hawaii Sooner Than Expected The researchers believed that the cesium had initially dispersed into the Pacific from the coast of Fukushima Prefecture but would be taken to the southwest by the prevailing currents at a depth of around 1,300 feet. Researchers thought it would take years to reach the islands. But now, according to a University of Hawaii researchers, the debris will arrive sooner than expected.  ....Since the March 11th earthquake and tsunami, researchers have been predicting it would take about two years for the debris from Japan to hit Hawaii's west-facing beaches. “We have a rough estimate of 5 to 20 million tons of debris coming from Japan,” said UH computer programming researcher Jan Hafner.

..Their path back to Russia crossed exactly across the projected field of the debris.  Soon after passing the Midway Islands on Sept. 22, they hit the edge of the tsunami debris.   “They saw some pieces of furniture, some appliances, anything that can float, and they picked up a fishing boat,” said Hafner.  It was a 20-foot fishing boat with the word "Fukushima" on it.  “That's actually our first confirmed report of tsunami debris,” said Hafner...  Source: kitv.com 

The Public Concern Was Never Really An 'Official' concern In the first few days after the March 11 earthquake and tsunami that damaged the Fukushima Daiichi power plant, government authorities and the company were criticized for not providing information in a timely fashion. A Kyodo News survey released Sunday found that 58% of respondents did not approve of the government's handling of the crisis at the nuclear plant. More than two weeks later, updates provided via news conferences, press releases, data charts and Twitter feeds have become very frequent and very technical. To a lay person, the onslaught of numbers and unfamiliar terms can feel indecipherable.

Initially reports had quieted concerns by stating that the materials would be diluted so vastly that the radioactivity would not be able to accumulate, and would not affect the environment.  The experts claimed they would track the deposition and floating radioactive debris field making its way on a trans-Pacific trip to the United States. Apparently, the experts in Japan didn't get the message.  The Japanese regularly tested the seawater only for 'popular' Iodine and Cesium isotopes instead of all known fission-produced radioactive materials, for the first 3 months after the disaster.  By March 31st, radioactive contamination concentration was 4,385 times the legal limit, up from 3,355 times on Tuesday, according to Kyodo. In response, the government had pledged to increase radiation monitoring on land and by sea and to consider increasing the evacuation zone — however time has shown little action would follow these vows.

This ruse would only work, if the officials could hold off on monitoring and tracking the deposition as long as possible, until the plume had finally moved away from the coastline. TEPCO had intentionally dumped over 11 tons of water in the first few weeks, all of which contained high concentrations of radioactive materials. There would be further reports that would be difficult to quantify, including unknown amount of contaminated water leaked into the ocean from a damaged reservoir, and a plethora of uncharted and un-monitored leaks from the reactors. After dealing with the spring, the tsunami season arrived and even more contamination entered the sea through fallout from the air, and through precipitation runoff.

By March 26th, the news broke that levels near the reactor were 1,250 times the legal limits, as the levels of I-131 reported just a few hundred meters offshore boomed to ten times the already increased levels in a matter of days.  Tepco also reported levels of caesium-137 - which has a longer half life of about 30 years - almost 80 times the legal maximum. Findings throughout the summer challenged experts and officials however, as radiation levels found contamination in some parts had risen over 3,000 times the normal levels. "This is a relatively high level," nuclear safety agency official Hidehiko Nishiyama said in a televised news conference. Drinking 500ml of fresh water with the same concentration would expose a person to their annual safe dose, Mr Nishiyama said, but he ruled out an immediate threat to aquatic life and seafood safety.

"Generally speaking, radioactive material released into the sea will spread due to tides, so you need much more for seaweed and sea life to absorb it," Mr Nishiyama said. Pledges to Monitor and Track Contamination Left Unattended Japanese officials said they would check the seawater about 20 miles (30km) off the coast for radiation back in March, yet even though finding contamination, resumed testing withing 20 km, and downplayed the effects by stating they expected it to show there is no need to be concerned about any possible effect to fish.

By the time that current reaches the Central Pacific, there are branches heading more towards Alaska and the South—that gets harder to predict,” said Ken Buesseler, a senior scientist with the Woods Hole Oceanographic Institute told Jeff McMahon, a reporter for Forbes. “But that’s one of the things that several people hope to do by measuring these isotopes even at levels when they’re not harmful. We could actually track those ocean currents and better understand the circulation pattern in the Pacific.” Japanese Science and Fisheries Agencies Late Decision to Expand Testing On Marine Products to Weekly Testing 20-30 km Around Fukushima Daiichi

The science ministry and the Fisheries Agency will strengthen testing on marine products and widen the survey for seawater for radiation contamination from the damaged Fukushima No.1 nuclear power plant. The tests on marine products will be conducted once a week, in principle, depending on the size of the fish hauls, in Fukushima, Miyagi and Ibaraki prefectures. The government eased restrictions on land use outside the 20-kilometer no-entry zone around the plant in September. It will now test waters 20-30 km from the plant for radiation, and eventually survey seawater beyond 280 km from the coast using more accurate instruments, officials said.

Sources: ajw.asahi.com, via Nuclear News | What The Physics? Forbes.com SkyNews TEPCO IAEA

It was not until October 6 that the Tokyo Metropolitan government conducted a more extensive testing of the green teas grown, picked, and processed in Tokyo in May, after it learned of the teas grown in neighboring Saitama and Chiba Prefectures found with radioactive cesium exceeding the provisional safety limit.If you look at the Tokyo government announcement, radioactive cesium was detected in significant amount in ALL but one teas tested. However, except for the three that exceeded the provisional safety limit, they can be sold without any restriction, and probably have been already sold. (The image of the announcement below is from savechild.net, with highlight on teas in which radioactive cesium was detected.)

Gunma and Tochigi prefectures have a combined 3,800 square kilometers with an annual exposure of 1 millisievert or more. Among Tokyo's 23 wards, Katsushika Ward had the highest radiation level of 0.33 microsievert per hour, according to a science ministry map showing radioactive contamination for 12 prefectures. The ward government has been measuring radiation levels in seven locations once a week since late May. It plans to take measurements at about 500 public facilities, such as schools and parks, in response to residents' demands for detailed surveys.

The Gunma prefectural government has measured radiation levels in 149 locations since September and has identified six northern mountainous municipalities with an annual exposure of 1 millisievert or more. Earlier this month, the prefectural government asked 35 municipalities to decide whether radioactive materials will be removed. High radiation levels were detected in Minakami, Gunma Prefecture, known as a hot spring resort. Mayor Yoshimasa Kishi said the town could be mistaken as a risky place if it decides to have radioactive materials removed. The science ministry's map showed that 0.2 to 0.5 microsievert was detected in some locations in Niigata Prefecture. Niigata Governor Hirohiko Izumida said the figures were likely mistaken, noting that these locations have high natural radiation levels because of granite containing radioactive materials.

The prefectural government plans to conduct its own surveys of airborne radiation levels and soil contamination. Many municipalities are calling for financial support for removing radioactive materials. In Kashiwa and five other cities in northern Chiba Prefecture, radioactive materials need to be removed over an estimated 180 square kilometers of mainly residential areas. The Kashiwa city government is providing up to 200,000 yen ($2,620) to kindergartens and nursery schools for removal work. But some facilities have asked children's parents to help pay the costs because they cannot be covered by the municipal assistance.

Farm soil in Watari District in Fukushima was never officially tested for radioactive materials. An NPO (FoE Japan) tested soil samples from Watari with the help of Professor Yamauchi of Kobe University, but they are not from rice paddies or fields. The Fukushima prefectural government still doesn't test it. I am very curious to know the radiation levels in the farm soil in Watari and elsewhere where radioactive cesium has been detected in rice exceeding the provisional limit.