Here we inform about the development of radiation exposure from nuclear fission process:
Cesium-137, Iodine-131 and Strontium-90 are produced during the fission of atomic nuclei - whether it is a nuclear bomb or a nuclear power plant. Iodine has a half-life of approximately 8 days, Strontium 29 and Cesium 30 years. This means that the radiation exposure by radioactive Iodine is reduced after 8 days to a half and after 16 days to a quarter, while the effect of exposure to radiation from Cesium and Strontium decreases only slowly - about 1.7% in one year, as the graphic shows. Cesium is chemically similar to potassium and thus enters the biological cycle and therefore into the food chain to humans. It accumulates particularly in wild mushrooms. Strontium is chemically similar to calcium and thus is incorporated for building bones; it is accumulated in seashells, starfishs and other marine organism.

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Written 06.04.2011, last update 28.04.2016