Radiation level near the bottom of exhaust stack jumped up double since last year
Following up this article.. Tepco to shield reactor1 pool coolant system against the damaged stack / Stopping cooling the pool for 11 days [URL]
According to Tepco, they detected 950 mSv/h near the bottom of the damaged stack on 10/21/2015.
The measuring point was the connection part of sump pit and the stack, which was 0.3 m above the ground. The radiation level has been increasing at this point since they started surveying for some reason.
It was 480 mSv/h on 9/2/2014, but it became 560 mSv/h last December.
It is not identified what is causing the increasing radiation level.
Selon Tepco, le 21 octobre 2015 ils ont relevé 950 mSv/h près de la base de la cheminée endommagée.
Le point relevé est à la jonction entre le trou du puisard et la cheminée, soit à 0,3 m au-dessus du sol. La radioactivité augmente à cet endroit depuis qu’ils ont commencé à la surveiller. Elle était à 480 mSv/h le 2 septembre 2014 mais elle est passé à 560 mSv/h en décembre dernier.
On ne sait pas ce qui provoque cette augmentation de la radioactivité.
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.