Strontium-90 measured from west of Tokyo

According to the research of Ministry of Education, Culture, Sports, Science and Technology, 29 Bq/m2 of strontium-90 was measured in Yamanashi prefecture, where is in the west of Tokyo. (At the moment of 1/13/2012) The report was published on 9/12/2012.

It’s the same amount of Saitama prefecture, where is in the north of Tokyo.

It was under detectable level in Tokyo, but the lowest detectable amount was 19 Bq/m2, which is unusually high.


Strontium-90 measured from west of Tokyo






Stronzio-90 misurato ad ovest di Tokyo

Secondo la ricerca del Ministero di Educazione, Cultura, Sport, Scienza e Tecnologia, 29 Bq/m2 di stronzio-90 sono stati misurati nella prefettura di Yamanashi, a ovest di Tokyo (al momento del 13/1/2012). Il report è stato pubblicato il 12/9/2012.

E’ la stessa quantità della prefettura di Saitama, a nord di Tokyo.

Era sotto il livello rilevabile a Tokyo, ma la quantità più bassa rilevata è stata di 19 Bq/m2, che è insolitamente alta.


Français :

Du strontium-90 à l’ouest de Tokyo

Selon les observations du ministère de l’Éducation, de la Culture, des Sports, de la Science et des Technologies, 29 Bq/m² de strontium-90 ont été relevés dans la préfecture de Yamanashi (le 13 janvier 2012) qui se trouve à l’ouest de Tokyo. Le rapport n’en est publié que le 12 septembre 2012.

Il y en a autant dans la préfecture de Saitama qui est au nord de Tokyo.

Il n’était pas détectable dans Tokyo mais le plus petit niveau détecté a été de 19 Bq/m², ce qui est curieusement élevé.

Du strontium-90 à l'ouest de Tokyo


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.


November 2012