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Tepco measured 5,100,000 Bq/m3 of Strontium-90 from groundwater in August 2013 / Concealed for 5 months

Posted by Mochizuki on January 15th, 2014

http://fukushima-diary.com/2014/01/tepco-measured-5100000-bqm3-of-strontium-90-from-groundwater-in-august-2013-concealed-for-5-months/

Following up this article.. Tepco concealed wrong analysis of seawater for over 6 months / Tepco “Too busy to verify” [URL]

5,100,000 Bq/m3 of Strontium-90 was measured from groundwater last August, but Tepco didn’t publish the data for 5 months.

For press’s question about why Tepco doesn’t publish Strontium-90 data of seawater and groundwater samples, Tepco explained it is because they found technical errors in some of the analysis data.

On 1/15/2014, Tepco released the concealed Strontium-90 data along with the wrongly analysis data.

The newly published data reveals the fact that Tepco was aware of the significant Strontium-90 contamination in groundwater and seawater.

Except for the samples still “under analysis” for 6 months, Tepco measured Strontium-90 from all the groundwater samples taken from the seaside of reactor1 and 2. The highest reading was 5,100,000 Bq/m3 (8/22/2013). This is 94 times much as the former highest reading measured last May.

Also, Strontium-90 was measured from 97% of seawater samples taken in Fukushima plant port. The data shows Strontium-90 was detected in various locations in the port, from upper layer and lower layer, and also the entrance of port. The highest reading was 720,000 Bq/m3 (9/22/2013). This is 97 times higher than the former highest reading measured last June.

http://www.tepco.co.jp/nu/fukushima-np/f1/smp/2014/images/2tb-east_14011502-j.pdf

http://www.tepco.co.jp/tepconews/library/movie-01j.html

Iori Mochizuki

January 17, 2014 - Posted by arclight2011part2 | Uncategorized