5,000,000,000 Bq/m3 of Strontium-90 measured from groundwater last July / Tepco not announced for half a year

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Following up this article.. Strontium-90 was detected from only 1 of 755 nuclear waste samples before 311 in Fukushima plant [URL]


On 2/6/2014, Tepco announced they measured 5,000,000,000 Bq/m3 of Strontium-90 from groundwater last July.

Tepco hasn’t announced it for over half a year.

The sampling location was the seaside of reactor2. From this sample, 380,000,000 Bq/m3 of Tritium was also measured.


In August, when one month had passed since last measurement, they measured 4,000,000,000 Bq/m3 of Strontium-90 from the same boring again.


From this newly released data, Strontium-90 was measured from all the boring holes of the seaside of reactor2 and 3.


Regarding the delayed disclosure of data, Tepco stated they were taking time to investigate the cause of wrong analysis. However after all, they didn’t release the data, which strongly suggests the on-going sea contamination, before IOC selected Tokyo as the host city of Olympic 2020.





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Français :

5 milliards de Bq/m³ de strontium 90 dans les eaux souterraines en juillet dernier : Tepco n’en a rien dit pendant 6 mois
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Article lié : Dans la centrale de Fukushima Avant le 11-3, il n’y avait eu du strontium 90 détecté que dans un des 755 déchets nucléaires analysés

Le 6 février 2014, Tepco annonce qu’en juillet dernier ils avaient relevé 5 000 000 000 (5 milliards de) Bq/m³ de strontium 90 dans les eaux souterraines.

Tepco n’en a rien dit pendant plus de la moitié de l’année.
L’échantillon provient du côté mer du réacteur 2. Ils y ont également relevé 380 000 000 (380 millions de) Bq/m³ de tritium.

En août, au bout d’un mois après leur dernière mesure, ils ont relevé 4 000 000 000 (4 milliards de) Bq/m³ de strontium 90 dans le même forage. Dans cette nouvelle publication de données, ils ont relevé du strontium 90 dans tous les forages du côté mer des réacteurs 2 et 3.
Concernant le retard à la parution, Tepco affirme qu’ils ont pris le temps de rechercher la cause de leurs analyses faussées. Néanmoins en définitive ils n’avaient pas publié ces données, ce qui laisse fortement penser qu’on avait déjà une contamination en cours de la mer, avant que le CIO choisisse Tokyo comme ville des jeux olympiques de 2020.


Note : Si vous êtes de la grande presse internationale, ne lisez pas ce site sans avoir préalablement pris contact avec moi.

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.


February 2014