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Cs-134/137 density in retained water of Fukushima underground spiked 4000 times higher than last year
(Photo ; Reactor 4 just after 311 took place. Photo was released on 9/11/2012.)
On 12/9/2015, Tepco announced Cs-134/137 density significantly jumped up in the retained water of basement floor since last year.
The sample was the contaminated water retained in the South of Reactor 4. It was kept in the part called connection duct among the buildings.
From the sample collected on 12/3/2015, they detected 92,000,000 Bq/m3 of Cs-134 and 390,000,000 Bq/m3 of Cs-137. One year ago, it was 27,000 Bq/m3 (Cs-134) and 94,000 Bq/m3 (Cs-137). The density became 3,983 times higher than last year.
Tepco states they don’t think it has leaked to the outside of the duct. However, the reason of this increase is not identified. It is assumed that 420 t of contaminated water is retained in this duct.
http://www.tepco.co.jp/nu/fukushima-np/handouts/2015/images/handouts_151209_13-j.pdf
Iori MochizukiThe post Cs-134/137 density in retained water of Fukushima underground spiked 4000 times higher than last year appeared first on Fukushima Diary.
Source: http://fukushima-diary.com/2015/12/cs-134137-density-in-retained-water-of-fukushima-underground-spiked-4000-times-higher-than-last-year/
