110 micro Sv/h in Setagaya may be caused by a flown piece of control rod.
Following up to this article, from the further investigation,there is a possibility that europium-152 is under the ground.
Europium-152 is a material of control rod in a reactor. If that is true, a piece of the control rod flew from reactor 3 and got into sewage pipe in Setagaya.
After they measured 110 micro Sv/h, they measured higher radiation level of 170 micro Sv/h at 60cm away from the boarder to the next area.
They also suggested the possibility that highly radioactive sewage water is stocked under the supermarket.
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.