All β nuclide density became 100,000 × in seaside of Reactor 2 since this February

Photo : North water intake of Reactor 1 ~ 4 [URL]


All β nuclide density to contain Strontium-90 became 100,000 times much since this February in groundwater.

Fukushima Diary found this in Tepco’s reported published on 10/10/2014.


It’s contaminated groundwater collected in the seaside of Reactor 2. According to Tepco, all β nuclide density was 10,000 Bq/m3 order from 11/2013 to 2/2014, however it got into the rapid increasing trend after 2/2014, and it’s become 1,000,000,000 Bq/m3 order in 9/2014.


Also, all β nuclide density from another boring of Reactor 2 seaside has been increasing since 11/2013, when Tepco started analyzing the sample from this boring. The density increased by 1,000 times much from 11/2013 to 9/2014.


Regarding these increases in all β nuclide density, Tepco hasn’t made any announcement. They are still stating most of it is stopped from leaking to the sea.




Français :

Depuis février, la radioactivité β s’est multipliée par 100 000 sur le côté mer du réacteur 2


Photo : Prise d’eau Nord des réacteurs 1 à 4 [Lien]

La radioactivité β des eaux souterraines, dont le strontium 90, s’est multipliée par 100 000 depuis février.
Le Fukushima Diary le découvre dans un rapport publié par Tepco le 10 octobre 2014.

Il s’agit d’eaux souterraines extrêmement radioactives prises sur le côté mer du réacteur 2. Selon Tepco, la radioactivité β était de l’ordre de 10 000 (dix mille) Bq/m³ entre novembre 2013 et février 2014, Ensuite il y a eu une montée rapide après février et on en était autour de 1 000 000 000 (un milliard) Bq/m³ en septembre 2014.

De plus, la radioactivité β d’un autre forage du côté mer du réacteur 2 augmente depuis novembre 2013, quand Tepco a commencé l’analyse des échantillons de ce forage. La radioactivité a été multipliée par 1 000 entre novembre 2013 et septembre 2014.

Tepco n’a fait aucun communiqué concernant ces augmentations de la radioactivité β. Ils continuent de dire que le gros en est retenu avant d’arriver à la mer.

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.


October 2014