Highest Strontium-90 density detected in seawater of Fukushima plant port / 1,500,000 Bq/m3

From Tepco’s report published on 7/17/2015, Strontium-90 density in seawater of Fukushima plant port became the highest since they started measuring.

The sampling location was between water intake of Reactor 3 and 4, and also screen of Reactor 4, which are in front of Reactor 3 & 4.

The samples were collected on 6/1/2015. This analysis result has not been published for over a month.

1,500,000 Bq/m3 of Strontium-90 was detected from both of the samples.

The previous highest reading was 1,000,000 Bq/m3, which was detected at the same sampling location on 5/4/2015.






Français :

Record en strontium 90 dans le port de la centrale de Fukushima : 1 500 000 Bq/m³


Selon un rapport de Tepco publié le 17 juillet 2015, la radioactivité en strontium 90 de l’eau de mer du port de la centrale de Fukushima est à son record depuis qu’ils ont commencé à la mesurer.

Les échantillons ont été pris le 1er juin 2015 entre les prises d’eau des réacteurs 3 et 4 et aussi à la grille du réacteur 4, soit en face des réacteurs 3 & 4. Ces résultats d’analyse n’ont pas été publiés pendant plus d’un mois.
1 500 000 (1,5 millions de) Bq/m³ de strontium 90 ont été relevés dans les deux échantillons.
Le record précédent était de 1 million de Bq/m³, relevé aux mêmes endroits le 4 mai 2015.


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