Fish and shellfish samples were purchased by Greenpeace between September 4 and October 7 from the Aeon, Ito-Yokado, Uny (Apita), Daiei, and Seiyu supermarket chains in Tokyo, Kanagawa, Chiba, Saitama, Ibaraki, Fukushima, and Miyagi. 34 out of the 60 samples tested at the lab exhibited contamination levels of up to 88 becquerel per kg.
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