Mais Jancovici vous confirmera la leçon : jusqu'à 200mSievert/an, pas documenté, certaines régions du monde ont même 400mSv/an en se portant tous très bien (Tubiana et Joffre). (fou, car en 10 ans 4 sievert qui tue vite et donc il y un hic contradictoire, que Tubiana n' a pas résolu dans tout ce qu'il raconte, vu que les doses sont cumulatives).
A Lodève sur GlobalMag Arte vers 12h30, la mine d'uranium fermée par Areva récupérée par la ville et emménagée pour travailleurs, crache 4,6 mSv/h et pas 2,3mSv/h différence due à des mesures soit au raz du sol ou à 1m de hauteur !!! et c'est 40 fois la radioactivité naturelle en France typique !!
Infos sur les medias et Arte infos :
Fukushima égale 3 tchernobyl niveau 7 avec 3 réacteurs fondus !
Les réacteurs ont bien leurs coeurs fondus officiellement !
On en était quasi certain en fin mars, vu les explosions !!
Et de plus toujours incapable de savoir ce qui s'est passé après le tremblement de terre.
http://www3.nhk.or.jp/daily/english/24_18.html
TEPCO still looking into emergency cooling system
The operator of the Fukushima Daiichi nuclear power plant is still unable to determine how long an emergency cooling system at the Number 1 reactor remained off after the March 11 earthquake.
Officials of Tokyo Electric Power Company spoke to reporters on Tuesday about the system, which can function without external sources of power.
Operating records at the plant show that the system turned on automatically 6 minutes after the earthquake, at 2:52 PM, and halted 11 minutes later, at 3:03 PM. The system was back on more than 3 hours later, at 6:18 PM.
TEPCO says that based on hearing from workers, it has confirmed that the system was manually shut down at 3:03 PM.
It said this step was made based on a manual, in order to prevent damage to the reactor, because the temperature of the water to cool the No.1 reactor had dropped sharply.
TEPCO says the system may have been turned on in the 3 hours until 6:18, but that it cannot clearly determine the course of events based on studies of circuits and interviews with workers.
The utility firm says at this point it cannot determine to what extent the emergency system was functioning, and that it will continue investigating.
The firm also said that data taken in the 30 minutes after the earthquake show no irregularities in all safety features of the Number 1 to 3 reactors such as emergency power sources and in major facilities of the plant.
On May 16th, TEPCO disclosed the plant's operating records from immediately after the earthquake. The Nuclear and Industrial Safety Agency has instructed the firm to submit a report after analyzing them further and assessing their effects on nuclear safety.
Tuesday, May 24, 2011 14:00 +0900 (JST)
Et si vous manquez d'eau radioactive qui permet de vivre plus vieux selon le Pr. Tubiana et autres anciens spécialistes, TEPCO sera heureux de vous en donner des dizaines de milliers de m3 !!
Et Areva a intérêt à faire marcher très vite son système de purification de ces eaux !!
http://www3.nhk.or.jp/daily/english/23_25.html
Contaminated water removal to be suspended soon
The operator of the damaged Fukushima nuclear power plant is continuing the transfer of highly radioactive water from 2 reactor buildings to storage facilities within the compound, but the facilities are expected to become full within 3 or 4 days.
About 47,000 tons of contaminated water has accumulated in the turbine buildings and utility tunnels, hampering Tokyo Electric Power Company's efforts to bring the plant under control.
TEPCO is pumping a total of 14,000 tons of such water from the Numbers 2 and 3 reactors to the storage facilities. But one of the facilities is expected to reach its capacity in 3 days and the other in 4 days, forcing the transfer to be suspended.
TEPCO says it is studying whether it is possible for the storing facilities to accept additional radioactive water for the time being, until it starts operating a new facility.
The new facility is designed to lower the radiation level of the contaminated water on a full-fledged basis, and then use the water to cool the reactors. The facility is expected to be completed by mid-June.
The utility says the levels of the remaining contaminated water at the 2 reactors remain almost unchanged and that there is no immediate risk that the radioactive water will leak into the ground or the sea. TEPCO says it is monitoring operations closely to prevent any leaks.
TEPCO reported that it had discovered contaminated water leaking into the sea in April, and again earlier this month. The utility has since taken measures to prevent further leaks.
Monday, May 23, 2011 19:25 +0900 (JST)
http://www3.nhk.or.jp/daily/english/23_34.html
Parents demand lower radiation limit for children
A group of parents of school children is calling for lowering the government-set radiation limit for children.
The group is from Fukushima Prefecture, where a crippled nuclear power plant is posing the danger of nuclear contamination.
On Monday, members of the group visited the education ministry and submitted a petition bearing more than 15,000 signatures.
After the Fukushima Daiichi nuclear plant accident, the government set the yearly limit for accumulated external radiation for children undertaking outdoor activities at 20 millisieverts.
The parents have been pointing out that the government safety level is too high for children and are demanding that it be lowered to 1 millisievert per year.
One millisievert per year is the level recommended by the International Commission on Radiological Protection as a long-term annual reference level for humans.
The parents say the government should take as many measures as possible to reduce children's radiation exposure, such as removing contaminated topsoil from schoolyards.
A ministry official admitted that the 20-millisievert yearly level is not necessarily an appropriate limit for children. The official told the group that the ministry wants to consider all possible measures to reduce radiation risk.
Monday, May 23, 2011 21:29 +0900 (JST)
