Source:
THE MAINICHI NEWSPAPERSThe levels of radiation accumulated in soil near the crippled nuclear power plant in northeastern Japan far exceeded the level of radiation the then-Soviet Union had used as a criterion for urging people to evacuate at the time of the 1986 Chernobyl nuclear disaster, threatening to plague local residents for a lengthy period.
Using aircraft, the Ministry of Education, Culture, Sports, Science and Technology checked the cesium-137 (half life of about 30 years) and cesium-134 (half life of about two years) accumulated in soil in collaboration with the U.S. Department of Energy in April.
Cesium-137 that has longer effects, ranging from 3 million to 14.7 million becquerels per square meter, was detected in Namie, Futaba, Minamisoma, Iitate and Katsurao, northwest of the Fukushima No. 1 Nuclear Power Plant, in Fukushima Prefecture. The levels far exceeded 550,000 bacquerels per square meter, the level the then-Soviet Union had used as a criterion for urging people to evacuate at the time of the 1986 Chernobyl nuclear disaster.
Based on recommendations from the International Commission on Radiological Protection (ICRP), the Japanese government used 20 millisieverts per year of radiation in the atmosphere as the criterion to designate evacuation areas in the wake of the nuclear accident in Fukushima. Therefore, there are areas that have not been designated as evacuation zones although they have larger amounts of accumulated radiation.
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Japan and the powers that be have been working overtime in making sure news from Fukushima gets very little press.
one of many instances:
Weather chief draws flak over plea not to release radiation forecastshttp://www.istockanalyst.com/business/news/5100280/weather-chief-draws-flak-over-plea-not-to-release-radiation-forecastsTOKYO, Apr. 29, 2011 (Kyodo News International) -- The chief of the Meteorological Society of Japan has drawn flak from within the academic society over a request for member specialists to refrain from releasing forecasts on the spread of radioactive substances from the troubled Fukushima Daiichi nuclear plant.
In the request posted March 18 on the society's website, Hiroshi Niino, professor at the University of Tokyo, said such forecasts, which he says carry some uncertainty, ''could jumble up information about the government's antidisaster countermeasures unnecessarily.''
''The basic principle behind antidisaster measures is to enable people to act on unified reliable information,'' he said.
Niino later said in commenting on the intention he had in issuing the statement, ''If (society members') forecasts were announced, it would have carried the risk that ordinary people may panic.''
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And the EPA is doing its part in keeping news quiet:
EPA Halts Heightened Monitoring of Fukushima Fallouthttp://www.enewspf.com/latest-news/science-a-environmental/24136-epa-halts-heightened-monitoring-of-fukushima-fallout.htmlWASHINGTON--(ENEWSPF)--May 9 - Although the Japanese nuclear reactor disaster is still unfolding with no end in sight, the U.S. Environmental Protection Agency has cut its radiation monitoring back to pre-tsunami levels, according to a statement posted on the agency website last week. As a result, stepped-up testing of precipitation, drinking water and milk has ended, with EPA saying that the next round of sampling “will take place in approximately three months.”
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meanwhile:
Strontium-90 Detected in Waters Near Fukushima Power Planthttp://www.arirang.co.kr/News/News_View.asp?nseq=115777&code=Ne8&category=1Almost two months have passed since the nuclear crisis erupted at the nuclear power plant in Fukushima, Japan and some details of the damage are just emerging.
Japan's Asahi Shimbun reported on Monday that radioactive strontium-90 has been detected in the sea near the No. 5 and No. 6 reactors at the stricken nuclear complex.
That isotope in particular is known to be more dangerous than other radioactive materials, such as iodine-131 and cesium-137, and can be easily absorbed into the human body causing leukemia and various cancers.