Fukushima pref gov underestimated external exposure dose of 12,500 citizens by up to 400 μSv/h, “Program error”

On 6/25/2013, Fukushima prefectural government announced they “miscalculated” the external exposure dose of 16,118 citizens (422,228 in total).

They are estimating the exposure dose of Fukushima citizens received from 3/12/2011 to 7/11/2011 and sending the results.

Among the “miscalculated” exposure dose of 16,118 people , the ones of 12,469 people (77%) were underestimated by up to 400 μSv/h.

Fukushima prefectural government states the outsourced organization, National Institute of Radiological Sciences had a program error.




I see no hope in the old system of Japan.


Français :

La préfecture de Fukushima a sous-estimé l’exposition externe de 12 500 personnes jusqu’à 400 μSv/h, “Erreur logicielle”


Le 25 juin 2013, la préfecture de Fukushima déclarait qu’ils avaient “mal calculé” l’exposition externe de 16 118 personnes (sur un total de 422 228).

Ils font une estimation de la dose d’exposition externe que les gens de Fukushima ont reçue entre le 12 mars 2011 et le 11 juillet 2011 et envoient leurs résultats.
Sur les expositions “mal calculées” des 16 118 personnes, celles de 12 469 (77%) ont été sous-estimées de jusqu’à 400 μSv/h.
La préfecture de Fukushima affirme que leur prestataire, le National Institute of Radiological Sciences a eu une erreur dans le logiciel.


Je ne vois aucun espoir dans l’ancien régime japonais

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.


June 2013