Cs-134/137 detected from all of the marine soil samples along Eastern Japan coastal area

From the report of NRA (Nuclear Regulation Authority), Cesium-134/137 was detected from 32 of 32 marine soil samples taken this May.

The sampling locations are offshore of Miyagi, Fukushima, Ibaraki and Chiba Prefecture. The report was published on 7/13/2015.

The report says the samples were taken from 30m depth to 660m and collected by Marine Ecology Research Institute (MERI) and analyzed by Japan Atomic Energy Agency (JAEA).

Cs-134 was not detected from only one sample. Cs-134 was measured from all the rest of the samples.

The highest reading was 164 Bq/Kg in total of Cs-134/137. The sampling location was approx. in 40km South East of Fukushima nuclear plant.


Other nuclides such as Sr-90 and U-235 were not even tested. They did not collect samples from Tokyo Bay either.






Français :

Du Cs 134/137 dans tous les échantillons de fond marin sur la côte Est du Japon


Selon un rapport de la NRA (Nuclear Regulation Authority), du césium 134/137 a été relevé dans 32 des 32 échantillons de fonds marins pris en mai dernier.

Ils ont été pris au large des préfectures de Miyagi, Fukushima, Ibaraki et Chiba.
Ce rapport a été publié le 13 juillet 2015. Il déclare que les échantillons ont été pris entre 30 et 660 m de profondeur par le Marine Ecology Research Institute (MERI) et analysés par la Japan Atomic Energy Agency (JAEA).
Le Cs 134 n’a pas été relevé dans un échantillon, il l’a été dans tous les autres.
Le record a été de 164 Bq/kg en total des Cs 134/137. L’endroit en est approximativement à 40 km au Sud-Est de la centrale de Fukushima.

Les autres radionucléides comme le Sr 90 et le U 235 n’ont même pas été recherchés. Ils n’ont pas pris d’échantillon dans la baie de Tokyo non plus.


About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


July 2015