Radioactive sewage sludge and slag in Tokyo
By arevamirpal::laprimavera
22 May 2011 It was big news when the radioactive sewage sludge and slag were found in Fukushima Prefecture earlier this month (see my posts here, here and here). And it is almost no news when the highly radioactive (170,000 becquerels per kilogram) sewage slag was found in TOKYO, and the slag’s been already sold as construction materials. Here’s a report from a week ago by Nippon Television (3;48PM JST 5/13/2011):東京都の下水処理施設から出た汚泥の焼却灰から、一キロあたり１７万ベクレルという高濃度の放射性物質が検出されていたことが日本テレビの取材でわかった。 Nippon Television’s investigation has revealed that the radioactive materials in very high concentration, 170,000 becquerels per kilogram, had been found in the sewage slag from a sewage treatment facility in Tokyo. 東京都によると、江東区の下水処理施設「東部スラッジプラント」で３月２５日に採取した汚泥の焼却灰から、一キロあたり１７万ベクレルの放射性物質が検出 されていた。同じ時期に採取した別の２つの施設の焼却灰からも、一キロあたり１０万ベクレル以上検出されていたという。これらの焼却灰は、すでにセメント や建築資材などに再利用されている。 According to the Tokyo Metropolitan government, 170,000 becquerels per kilogram radiation was detected in the sewage slag sample taken on March 25 at Tobu Sludge Plant, a sewage treatment facility in Koto-ku. The samples taken at two additional facilities also showed radiation over 100,000 becquerels per kilogram. The slag has already been recycled into cement and other construction materials.
In comparison, the sewage slag from Koriyama City in Fukushima measured 334,000 becquerels per kilogram, and Koto-ku is 225 kilometers away from Fukushima I Nuke Plant.
