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Normal radiation dose rates at the Fukushima I site as established by the stream of monitoring post readings in the 3 months preceding the accident. (03/01=1 March 2011, 1 Gray= 1 Sv for gamma radiation) [98] Radiation fluctuated widely on the site after the tsunami and often correlated to fires and explosions on site.
The Radiation Effects Research Foundation (RERF) is a joint U.S.-Japan research organization responsible for studying the medical effects of radiation and associated diseases in humans for the welfare of the survivors and all humankind. [1] The organization's scientific laboratories are located in Hiroshima and Nagasaki, Japan.
In July 2011, Kan said that "Japan should reduce and eventually eliminate its dependence on nuclear energy in what would be a radical shift in the country’s energy policy, saying that the Fukushima accident had demonstrated the dangers of the technology". [7] Kan said Japan should abandon plans to build 14 new reactors by 2030.
In July 2022, Japan's Nuclear Regulation Authority approved discharging the treated water into the sea. [205] Japan said the water is safe, many scientists agreed, and the decision came weeks after the UN's nuclear watchdog approved the plan; but critics say more studies need to be done and the release should be halted.
in areas with radiation levels above 20 millisievert per year, decontamination would be done step by step. within two years, radiation levels between 5 and 20 millisieverts should be cut down to 60%. the Japanese government would help local authorities with disposing of the enormous amount of radioactive waste. [108]
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In December 2011, as Japan completed "step 2" of its control roadmap at Fukushima, U.S. NRC chairman Jaczko visited the plant and said afterwards "that there was no longer enough energy in the reactors at the crippled Fukushima No. 1 Nuclear Power Plant to produce an offsite release of radiation, but pointed out that a large cleanup task remained".
Radiation poisoning, also called "radiation sickness" or a "creeping dose", is a form of damage to organ tissue due to excessive exposure to ionizing radiation. The term is generally used to refer to acute problems caused by a large dosage of radiation in a short period, though this also has occurred with long-term exposure to low-level radiation.