Strontium-90 density jumped up double in groundwater / 990,000,000 Bq/m3 from Reactor 2 seaside

Following up this article.. Strontium-90 density rose up 3 × in groundwater / 490,000,000 Bq/m3 from Reactor 2 seaside [URL]


Strontium-90 density jumped up to be as double as the previous month reading again, according to Tepco.

The reading was 990,000,000 Bq/m3. The sample was taken on 10/2/2014. It was 490,000,000 Bq/m3 from the sample taken on 9/1/2014.

The sampling location was Reactor 2 seaside.

Tepco published only sporadic contamination data, and it doesn’t cover significant nuclides except Cs-134/137, Tritium and Strontium-90.

However even these carefully chosen data show the increasing trend of contamination situation of groundwater.

They haven’t announced what is actually likely to happen underground.




Français :

990 millions Bq/m³ : côté mer du réacteur 2, la radioactivité du strontium 90 des eaux souterraines double encore


Article lié : La radioactivité du strontium 90 multipliée par 3 dans les eaux souterraines : 990 millions de Bq/m³ côté mer du réacteur 2

Selon Tepco, la radioactivité du strontium 90 a encore doublé depuis le mois dernier.

Le relevé est de 990 000 000 (990 millions de) Bq/m³ (ndt: presque un milliard). L’échantillon est du 2 octobre 2014. On en était à 490 000 000 (490 millions de) Bq/m³ le 1er septembre 2014 .(ndt: presque un demi-milliard)
L’échantillon provient du côté mer du réacteur 2.

Tepco ne publie que sporadiquement des données de contamination et elles ne concernent pas les nucléides importants en dehors des césium 134/137, tritium et Strontium 90.
Néanmoins, même ces données choisies avec soin montrent la tendance à l’augmentation de la contamination dans les eaux souterraines.
Ils n’ont rien dit de ce qui se passe réellement en sous-sol.

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.


November 2014