Tepco takes over 56 years to discharge all tritium to the sea on the most optimistic assumption

Tepco is going to discharge contaminated water to the sea, however, they would take over 56 years to discharge all tritium to the sea according to Tepco.

The tritium is contained in the contaminated water.

This is on the assumption that the retained water does never increase even by 1cc for the rest of time, and that they discharge tritium to the sea at the highest level everyday under the safety regulation.


Tepco takes over 56 years to discharge all tritium from retained water on the most optimistic assumption

The retained water contains 1 ~ 5 million Bq/L of tritium. (Tepco commented it is actually 5 million Bq/L.)

The volume of the whole retained water is 245,000,000 L.

The safety limit of tritium to discharge is 22,000,000,000,000 Bq/y.


Related article..Tepco started propaganda to downplay the risk of Tritium for discharging contaminated water to the sea [URL]



Ultra thanks→ http://kinoryu.cocolog-nifty.com/go_kinoryu/2013/03/post-4483.html




Français :

Dans l’hypothèse la plus optimiste, Tepco va mettre plus de 56 ans pour déverser tout le tritium en mer


Tepco va déverser l’eau contaminée dans la mer, toutefois, selon Tepco, déverser tout le tritium dans la mer devrait leur prendre plus de 56 ans.

Le tritium est dans l’eau contaminée.

Ceci dans l’hypothèse que le volume d’eaux stockées n’augmentera plus jamais, même de 1 cm³ et qu’ils déversent tous les jours le tritium dans la mer au plus haut niveau autorisé par les règles de sécurité.

Dans l'hypothèse la plus optimiste, Tepco va mettre plus de 56 ans pour déverser tout le tritium en merLes eaux retenues contiennent de 1 à 5 millions de Bq/L de tritium. (Tepco dit qu’en fait c’est à 5 millions Bq/L.)
Le volume total des eaux stockées est de 245 000 000 L. (ndt : 245 millions de litres)
La limite de sécurité pour le tritium déversé est de 22 000 000 000 000 Bq/an. (ndt : 22 millions de millions)
(ndt : 245 millions * 5 millions = 1 225 millions de millions => 1225/22 = 55,68 ans si h24 7/7j , donc  >56 ans en réalité)

Article lié : En préparation du rejet des eaux contaminées dans l’océan, Tepco lance une propagande de minimisation des risques liés au tritium


Un immense merci à http://kinoryu.cocolog-nifty.com/go_kinoryu/2013/03/post-4483.html

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.