2,350,000,000,000 Bq/m3 of Cs-134/137 from seaside trench of reactor2

On 7/27/2013, Tepco announced they measured 2,350,000,000,000 Bq/m3 from retained water of seaside trench of reactor2.

It’s water intake power cable trench from reactor2. Tepco opened a hole (20cm diameter) on the trench from the ground on 7/19/2013. They took the sample on 7/26/2013.

On 7/19/2013, Fukushima Diary reported “36,000,000,000 Bq/m3 of Cs-134/137 measured from retained water of reactor2 trench / Tritium density under analysis [URL]” This time, they investigated the next trench.

As a result, extremely high level of radioactive material was detected.

Cs-134 : 750,000,000,000 Bq/m3
Cs-137 : 1,600,000,000,000 Bq/m3

This is only a part of the entire trench. It is not announced how much contaminated water is retained in total.

 

↓ Location of the sampling hole. (Blue box)

2,350,000,000,000 Bq/m3 of Cs-134/137 from seaside trench of reactor2

↓ The hole on the trench.

2 2,350,000,000,000 Bq/m3 of Cs-134/137 from seaside trench of reactor2

http://www.tepco.co.jp/nu/fukushima-np/f1/smp/2013/images/trench02_13072702-j.pdf

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130726_08-j.pdf

http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130719_06-j.pdf

It’s no use crying over spilt milk.

_____

Français :

2,35 Tera Bq/m³ de Cs-134/137 côté mer de la tranchée du réacteur 2

 

Ce 27 juillet 2013, Tepco annonce qu’ils ont relevé 2 350 000 000 000 Bq/m³ dans les eaux retenues côté mer de la tranchée du réacteur 2.

C’est la tranchée de la prise du câble électrique du réacteur 2. Le 19 juillet 2013, Tepco avait foré un trou (de 20 cm de diamètre) dans cette tranchée à partir de sa surface. Ils ont pris l’échantillon le 26 juillet 2013.
Le 19 juillet 2013, le Fukushima Diary publiait “36 milliards de Bq/m³ de Cs-134/137 dans les eaux retenues dans la tranchée du réacteur 2 / le tritium en cours d’analyse ” Cette fois, c’est dans la tranchée voisine.

Au bilan, ils ont relevé un niveau extrêmement élevé de radioactivité :
Cs-134 : 750 000 000 000 Bq/m³ (750 milliards)
Cs-137 : 1 600 000 000 000 Bq/m³ (1 600 milliards)

Ce n’est que dans une portion de la tranchée. Ils ne donnent pas la quantité totale d’eau retenue dedans.

↓ Position du trou d’échantillonnage. (carré bleu)
2,350,000,000,000 Bq/m3 of Cs-134/137 from seaside trench of reactor2

↓ Le trou dans la tranchée.
2 2,350,000,000,000 Bq/m3 of Cs-134/137 from seaside trench of reactor2

http://www.tepco.co.jp/nu/fukushima-np/f1/smp/2013/images/trench02_13072702-j.pdf
http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130726_08-j.pdf
http://www.tepco.co.jp/nu/fukushima-np/handouts/2013/images/handouts_130719_06-j.pdf

Il est inutile de pleurer quand le lait est par terre.

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.

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