Sr-90 in Fukushima nuclear plant significantly increasing, Max as 127 times much within 8 months in 2012

On 5/21/2013, Fukushima Diary reported “Plutonium in Fukushima nuclear plant significantly increasing ,Max as 632% within 8 months of 2012 [URL]”

According to Tepco, Strontium-90 (half-life, 29.1 y) is also in the increasing trend.

The sample is dry soil. They take samples in the ground (500m WNW from reactor 1&2 stacks in parentheses), Yachounomori (500m W from reactor 1&2 stacks in parentheses) and around industrial waste treatment facility (500m SSW from reactor 1&2 stacks in parentheses).

From 3/12/2012 to 11/12/2012, Sr-90 significantly increased as the graph below.

The largest increasing rate was 12,708 %. The sampling location was Yachounomori. It increased from 4.8 Bq/Kg to 610 Bq/Kg.

The latest report was released on 5/21/2013, however the sampling date was 11/12/2012. Tepco has been concealing the data for 6 months for some reason.

Sr-90 in Fukushima nuclear plant significantly increasing, Max as 127 times much within 8 months in 2012



Thank you for your support.
Now your donation will be spent on the next research for the possibile Japanese village in Romania. (560€)
At this moment, 471€ to go.

Train : 100
Hotel in Sighisoara : 30×7 nights
Hotel in Arad : 30×7 nights
Bus : 40
Total : 560


Français :

Dans la centrale nucléaire de Fukushima, le strontium 90 a aussi augmenté en 2012 : un max multiplié par 127 en 8 mois


Le 21 mai 2013, le Fukushima Diary publiait En 2012, le plutonium a sérieusement augmenté dans la centrale de Fukushima : Un max de 632 % en 8 mois

Selon Tepco, le strontium 90 (demie-vie = 29,1 ans) est aussi en augmentation.
Échantillons de sol sec, pris au sol (à 500 m WNW des cheminées des réacteurs 1 & 2), Yachounomori (à 500 m W des cheminées des réacteurs 1 & 2) et autour de l’équipement de traitement des déchets industriels (à 500m SSW des cheminées des réacteurs 1 & 2).
Le Sr 90 a sérieusement augmenté entre le 12 mars et le 12 novembre 2012 comme le montrent les graphiques ci-dessous.
La plus forte augmentation est de 12 708 % à Yachounomori. On passe de 4,8 Bq/kg à 610 Bq/kg.
Le dernier rapport est publié ce 21 mai 2013 bien que la date d’échantillonnage soit du 12 novembre 2012. Tepco a gardé ces données pendant 6 mois.

Sr-90 in Fukushima nuclear plant significantly increasing, Max as 127 times much within 8 months in 2012

Merci pour votre aide.
A présent, vos dons vont être utilisés pour la recherche suivante d’un possible village japonais en Roumanie. (560 €)
Pour l’instant, il manque 471 €.

Train : 100
Hôtel à Sighisoara : 30×7 nuits
Hôtel à Arad : 30×7 nuits
Bus : 40
Total : 560

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.


May 2013