Still 0.88 MBq/km2 of Cs-134/137 falls in Tokyo monthly

According to NRA (Nuclear Regulation Authority), Tokyo still has fallout from Fukushima nuclear plant.

From their report released on 8/31/2015, 0.88 MBq/km2 of Cs-134/137 falls onto Tokyo this July. The sampling location was Shinjuku.

The comparable data on Fukushima prefecture is not listed on the same report for some reason.

However the reading of Tokyo includes Cesium-134 at the significant level to prove this is from Fukushima plant.

In Miyagi prefecture, where is in the North of Fukushima prefecture, the fallout level is 0.55 MBq/km2. The fallout density in Tokyo is higher than Miyagi prefecture.

Other nuclide density is not reported.




Français :

Toujours 0,88 MBq/km² de Cs-134/137 de retombées sur Tokyo


Selon la NRA (Commission de règlementation de l’énergie nucléaire), Tokyo subit encore des retombées de la centrale nucléaire de Fukushima.

Selon leur rapport publié le 31 août 2015, 0,88 MBq/km² de Césium 134/137 sont retombés sur Tokyo en juillet. Les mesures ont été prises à Shinjuku.
Des données comparables de la préfecture de Fukushima ne figurent pas dans ce même rapport. Néanmoins, les relevés de Tokyo comportent un niveau important de césium 134 ce qui prouve qu’il provient de la centrale de Fukushima.

Dans la préfecture de Miyagi, qui se trouve au nord de la préfecture de Fukushima, le niveau des retombées est de 0,55 MBq/km². La radioactivité des retombées sur Tokyo est plus élevée que celle de la préfecture de Miyagi.

La radioactivité des autres nucléides n’est pas précisée.

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.


September 2015