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High levels of radioactive cesium have been detected in Japanese dairy cattle. The Japanese newspaper Yomiuri Shimbun reported Thursday, that dairy cows at a farm in Iwate Prefecture, were found to be contaminated with cesium of, 541 becquerels per kilogram. The limit is 5-hundred bequerels. According to the paper, the prefectural government believes the contamination could be from cesium-tainted straw fed to the cattle. Although several cesium-tainted beef cows have been detected in Japan since the nuclear plant meltdown in Fukushima Prefecture began, this is the first time that cesium has been detected in dairy cattle.
It varies by country.
Originally posted by manicminxx
Does anyone know precisely the acceptable levels of cesium pre-3/11?
They have already raised the bar for "safe" once...
They actually buy the contaminated beef so that there won't be an incentive to hide the fact it's contaminated when contamination is found. Apparently in Japan 500 Bq/kg been the limit for beef all along; you are probably thinking of the limit for the exposure of schoolchildren and adults to radiation to the same levels as nuclear workers that was changed, which was not a beef issue:
The Ministry of Health, Labour and Welfare (MHLW) established the provisional regulation for exposure to radio active cesium in food products as 500 Bq/kg. Examples of the similar values from other countries are 1,000 Bq/kg in Singapore and Hong Kong; 1,200 Bq/kg in the U.S.A.; 370 Bq/kg in the Republic of Korea and Taiwan.
Following the accident, Japan raised the exposure limit for both adults and children from one to 20 millisieverts per year, matching the maximum exposure level for nuclear industry workers in many countries.
The move prompted outrage and parents in Fukushima had been calling on the government to lower limits at school, claiming that children face a higher risk from radiation-linked cancers and other diseases than adults.
I take that to mean that the increased limit still applies to adults, and for that matter to kids while they are at home? Apparently the reduced (back to the original) limit only applies at school?
Japan on Friday lowered radiation exposure limits for children to below one millisievert per year while at school due to health concerns in the wake of the Fukushima nuclear crisis.
Originally posted by Pervius
Anybody tested the Pineapples growing in Hawaii?
After finding elevated levels of radiation in rice crops near Fukushima’s damaged nuclear power plant, government officials ordered more tests on September 24, 2011. This finding is particularly worrisome, because rice accounts for such a significant portion of the Japanese diet. Preliminary tests on rice paddies in the city of Nihonmatsu, about 35 miles from the Fukushima plant, indicated that crops contained 500 becquerels per kilogram of radioactive cesium, Japanese officials said. Under new Japanese regulations, 500 becquerels per kilogram of radioactive cesium is the highest level of radiation in rice considered safe for consumption. If results from the next round of testing show such high levels again, regulators may ban shipments of the rice. Japan has struggled to keep radiation contaminated food out of the market since the meltdown at the Fukushima plant, following the March 11, 2011 earthquake. Radiation has already been discovered in beef, milk, spinach, and tea leaves. "Following the nuclear disaster in Japan, there has been a dramatic increase in the number of requests to perform Gamma Spectroscopy analyses [radiation testing]," states Joseph Frasca, Senior VP at EMSL Analytical, Inc. "In response, EMSL began accepting food products, soils, vegetation, and water matrices to test for radiation. Moreover, we are able to process samples quickly—some in as little as one day."