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» Cesium level in Fish dropping; Strontium and other radioactivity unknown

Radioactive cesium levels have steadily declined in fish off Fukushima Prefecture, but samples taken closer to the Fukushima nuclear power plant were still showing high readings, according to studies.The government can only guess at the extent of strontium contamination among marine life in northeastern Japan.

According to the Fisheries Agency, only three, or 0.6 percent, of 472 marine samples tested between Sept. 1 and 19 in Fukushima Prefecture showed radioactive cesium levels exceeding the government safety standard for food of 100 becquerels per kilogram. That compares with 2.7 percent of the samples tested in July and August, and 53 percent during the early stages of the nuclear crisis in the March-June period of 2011.

Of the latest samples, 13.3 percent had levels between 10 and 100 becquerels per kilogram, while 86 percent had concentrations of 10 becquerels or less per kilogram or were undetectable, according to the agency.Therefore, fishery products caught off Fukushima Prefecture were prepered for trial sale as early as Sept. 26.
In other prefectures, the ratio of samples breaching the safety threshold of 100 becquerels dropped from 6.5 percent in March-June 2011 to 0.4 percent in July-August 2013.In the September tests, none of the 407 samples outside Fukushima Prefecture contained radioactive cesium exceeding 50 becquerels per kilogram.In fact, 94.3 percent of the samples fell to 10 becquerels or less or the contamination was undetectable, the agency said.

 
<Media Report>
Fukushima fisheries to resume trial fishing after samples prove safe (Japan Times)

Radioactive cesium levels drop in Fukushima fish, but strontium remains a mystery (Asahi Newspaper)

Fish caught off Fukushima Prefecture to hit the market (Mainichi Newspaper)


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