Pu-238 measured from the ground soil of sea
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
Iori Mochizuki
