Pollen in Tokyo is contaminated as well

Prof. Fukushi from Shuto University measured 93.8 Bq/kg from the pollen of Japanese cedar in Tokyo.

It is assumed that highly contaminated pollen from Fukushima will fly to Tokyo, however, pollen around in Tokyo may be contaminated.

From the research of Prof. Fukushi:

  • Pollen: 93.8 Bq/kg
  • Leaf: 322 Bq/kg
  • Soil: 1,381 Bq/kg

(Cesium 134 and 137)

The sample was taken in Aoume, which is only 30~40 km from the center of Tokyo.
Japanese cedar and cypress are major kinds of the trees around Tokyo, which makes pollen in Spring.
Pollen starts coming from December annually. The peak is from February to April.


20111104奥多摩の土1381Bq杉の葉322Bq。杉の花粉93… 投稿者 bakaTepco201111

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.


December 2011