Fukushima worker “5,000,000,000 Bq/m3 of Strontium-90 water got on the boots” / Tepco “I’m sorry.”

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Following up this article..Tepco been mis-analyzing Strontium-90 in contaminated water and seawater for 2.5 years since 311 [URL]


Fukushima workers were building the underground wall only a few meters away from the location that they measured 5,000,000,000 Bq/m3 of Strontium-90 from the groundwater of. However, Tepco didn’t inform the workers of the contamination level for over half a year.

The extremely contaminated water got on the boots of workers while they were injecting the chemical material underground. They had to pile macadams up to 1m high with the lead plate on the top to avoid the contamination, according to Tepco.

(cf, Tepco “Seaside of the reactors is getting too radioactive to work” [URL2])


The press asked Tepco about the responsibility of “delayed” announcement in the press conference of 2/7/2014. Tepco’s spokesman showed a certain kind of emotion, which is very rare, and commented “I’m sorry.”. They seem aware of the potential health effect of exposure.









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Français :

Un travailleur de Fukushima : “Sur mes bottes, de l’eau à 5 milliards de Bq/m³ de strontium 90” / Tepco : “désolé.”
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Article lié : A partir de mars 2011 et pendant 2 ans et demi Tepco a donné des résultats faux sur le strontium 90

Des travailleurs de Fukushima construisaient le mur souterrain à quelques mètres seulement de l’endroit où ils avaient relevé 5 000 000 000 (5 milliards de) Bq/m³ de strontium 90 dans les eaux souterraines. Évidemment, Tepco ne les a pas informés de ce niveau de radioactivité pendant plus de la moitié de l’année.
Ces eaux extrêmement radioactives ont arrosé les bottes des ouvriers pendant qu’ils injectaient le produit chimique dans le sol. Ils ont eu à entasser des plaques de plomb sur plus de 1 m de haut sur le macadam pour éviter la contamination, selon Tepco. (cf. Tepco : “Le côté mer des réacteurs devient trop radioactif pour pouvoir y travailler”)

Au cours de la conférence de presse du 7 février 2014, la presse a demandé à Tepco qui était responsable de communication de cette information. Le porte-parole de Tepco a exprimé une certaine émotion, ce qui est très rare, et a déclaré “je suis désolé”. Ils semblent réaliser les probables conséquences sanitaires de cette exposition.


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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