Pu-239/240 measured from seawater of Fukushima plant, Tepco “within the range of past readings”

According to Tepco, (5.8±1.7) ×10-6 Bq/L of Pu-239/240 was measured from seawater around Fukushima plant.

The sample was taken from around south discharge channel on 2/5/2013.

The past readings were up to 1.3×10-5 Bq/L. (2001 ~ 2008)

Having Pu-239/240 measured from seawater, Tepco commented this below,

Given that the density level of Pu-239+Pu-240 detected at 1F, Around South Discharge Channel on
February 5 is within the range of the past density measurements conducted along the seacoasts of
1F and 2F, it cannot be stated with absolute certainty that the presence of these particles is due to
the accident.


Pu-239/240 measured from seawater of Fukushima plant, Tepco "within the range of past readings"






Français :

Du Pu 239/240 relevé dans l’eau de mer de la centrale de Fukushima, Tepco : C’est dans la fourchette des valeurs passées


Selon Tepco, (5,8 ±1,7) millionièmes de Bq/L de Pu 239/240 ont été relevés dans l’eau de mer près de la centrale de Fukushima.

L’échantillon a été pris le 5 février 2013 à proximité du déversoir Sud.
Les valeurs antérieures (2001 ~ 2008) montaient jusqu’à 13 millionièmes de Bq/L.
Ayant relevé du Pu 239/240 dans l’eau de mer, Tepco déclare ceci :
Compte tenu que la concentration de Pu 239 + Pu 240 détectée en 1F, près du déversoir Sud le 5 février est dans la fourchette des niveaux antérieurement détectés le long des rivages de 1F et 2F, on ne peut affirmer avec certitude absolue que la présence de ces particules soit due à l’accident.

PDu Pu 239/240 relevé dans l'eau de mer de la centrale de Fukushima, Tepco : C'est dans la fourchette des valeurs passées


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.