According to the IAEA, radiation dose rates in Tokyo and other areas outside the 30-kilometer zone remain far below levels which would require any protective action by the public.
The radiation dose on the surface of these nuclear materials is between 0.1μSv/h- 8.5μSv/h, and each material has been stored within a radiation control area.
Most of the radioactive materials were released in the first several days of the accident, and radiation levels in the air have been gradually declining since.
And according to models promulgated by the International Commission on Radiological Protection(ICRP), the radiation dose from battlefield uranium is too low to initiate cancer.
We learned that the radiation levels in the air in the region are very low and will not affect people's health, and that the amount of radiation in locally grown agricultural products is within safety standards.
Clinical benefits should outweigh the small absolute risks, but radiation doses from CT scans ought to be kept as low as possible, and alternative procedures that do not involve ionizing radiation should be considered.
However, levels of radiation in areas around the three melted-down reactors remain extremely high, hampering the plant's decommissioning process, which is expected to take decades.
But if the gamma rays are created in a small area, they could be delivering doses of radiation in one millisecond that are many times beyond what the government sees as safe.
The radiation dose exposed either externally and internally in Fukushima residents have been evaluated to be low so far and it is hardly believed that they may have any direct radiation risk on physical condition.
By placing a scorpion shaped self-propelled robot equipped with camera and dosimeter inside the reactor containment vessel, it revealed that the space radiation dose in the furnace is 210 sievert per hour, but the robot could not get to the bottom of the vessel.
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