NIRS reported 98 percent of fir trees deformed in no-returning zone of Fukushima

NIRS (National Institute of Radiological Sciences)  published a report on Scientific Reports of on 8/28/2015. In this report, 97.6 % of Japanese fir trees had deformation by the beginning of 2015 in the area where it is expected that the residents have difficulties in returning for a long time (Ministry of Economy, Trade and Industry).

Those deformed trees don’t have sprouts to stop growing. The area spreads in Ookuma-town and Namie-town. The atmospheric is observed to be 33.9 μSv/h. In the area where the atmospheric dose is 19.6 μSv/h, the deformation rate was 43.5 %, and in the area where the dose is 6.85 μSv/h, the rate was 27%. This is showing the significant connection between the atmospheric dose and the deformation rate of Japanese fir.

The deformation of Pinus sylvestris was also seen in Chernobyl accident.


NIRS reports 98 percent of fir trees deformed in no-returning zone of Fukushima




Français :

Le NIRS rapporte que dans la zone interdite de Fukushima 98% des sapins sont déformés


Le 28 août 2015, le NIRS (Institut National des Sciences Radiologiques) publie un rapport sur des articles scientifiques de Dans ce rapport, début 2015 et dans la zone où on s’attend à ce que les habitants aient des difficultés à revenir longtemps, 97,6% des sapins japonais sont déformés (Ministère de l’Économie, du Commerce et de l’Industrie).

Ces arbres déformés n’ont pas de bourgeons et arrêtent de croître. Cette zone s’étend sur les villes d’Ookuma et de Namie. La dose ambiante observée est à 33,9 µSv/h. Là où elle est de 19,6 µSv/h, la fréquence des déformations est de 43,5%, et dans la zone où cette dose est de 6,85 mSv/h, elle est de 27%, ce qui démontre le lien significatif entre dose ambiante et fréquence de déformation des sapin japonais.

Des déformations de Pinus sylvestris sont également observées dans la région de l’accident de Tchernobyl.

NIRS reports 98 percent of fir trees deformed in no-returning zone of Fukushima

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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.


August 2015