25,000 Bq/Kg from macaques April 2011, it dropped once but rose again to this spring

On 10/4/2012, Asahi newspaper reported 25,000 Bq/Kg was measured from macaques.

Even though it dropped once, radioactive material is still accumulated.

In April last year, researchers from Nippon Veterinary and Life Science University (NVLU), along with other institutions, began sampling muscle tissue of wild Japanese macaques caught in the provincial capital, Fukushima, for radioactive cesium content.

The concentrations ranged between 10,000 and 25,000 becquerels per kilogram immediately after the nuclear crisis began to unfurl the month before.

The readings fell to 500-1,500 becquerels per kg in June, but rose again to more than 2,000 becquerels per kg from last winter to spring.

The seasonal variations presumably occurred because the macaques ate leaf buds, which are said to absorb radioactive cesium in high concentrations, the scientists said.


2012年10月4日、朝日新聞はサルから25,000 Bq/Kgの放射性セシウムが検出された事を報道しました。一旦は値が下がっても、放射性物質は蓄積し続けます。

前月に原発事故が起きた直後のセシウム濃度は、10,000 ~ 25,000 Bq/Kgでした。
6月には500~1500 Bq/Kgにまで値は下がりましたが、去年の冬から春にかけて再び2,000 Bq/Kg超にまで上昇しました。




Français :

25 000 Bq/kg sur des macaques en avril 2011, c’est descendu une fois mais ça remonte à nouveau jusqu’à ce printemps

Le 4 octobre 2012, le journal Asahi rapporte que 25 000 Bq/kg ont été relevés sur des macaques.

Même si c’est redescendu une fois, la radioactivité s’accumule toujours.

En avril de l’an dernier, des chercheurs de la Nippon Veterinary and Life Science University (NVLU, Université Nippone des Sciences Vétérinaire et de la Vie), ainsi que d’autres institutions, ont commencé un échantillonnage de tissus musculaires de macaques sauvages pris dans la province de la capitale, Fukushima, pour en suivre la radioactivité en césium.

Les concentrations s’étagent entre 10 000 et 25 000 becquerels par kilogramme immédiatement après que la crise nucléaire ait commencé à se répandre, à partir du mois suivant.

Le relevés sont redescendus à 500 – 1 500 becquerels par kg en juin mais ont recommencé à monter pour dépasser les 2 000 becquerels par kg à partir de l’hiver dernier jusqu’au printemps.

Les variations saisonnières sont vraisemblablement dues au fait que les macaques mangent des bourgeons de feuilles, lesquels sont connus pour concentrer fortement le césium radioactif par absorption, selon les scientifiques.


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.


October 2012