Japan Government Detects Plutonium In Ocean Floor

Pu-238 measured from the ground soil of sea (Jan. 20, 2012):

In early September of 2011, Ministry of Education, Culture, Sports, Science and Technology measured marine soil offshore of Ibaraki, Fukushima and Miyagi.

They published the result on 1/20/2012 finally but it shows marine soil contains alpha and beta nuclides.

9/8/2011

Pu-238 : 0.015 Bq/Kg

Pu-239+240 : 0.97 Bq/Kg

Am-241 : 0.50 Bq/Kg

Sr-90 (Bq/Kg)

9/14 : 0.38

9/14 : 0.12

9/13 : 0.32

9/10 : 0.20

9/9 : 0.20

9/8 : 1.9

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