Researchers from Columbia University in USA came to the conclusion that the levels of radiation resulting from nuclear weapons testing in the Marshall Islands still pose a threat to human life. About it reported in a press release on Phys.org.
Researchers analyzed soil samples from 11 Islands in four atolls. It turned out that the level of gamma radiation vary greatly, with some of the samples were radioactive to a much stronger than expected and far exceeded a safe level of exposure. For example, at Bikini Atoll, the annual radiation dose equal to 648 millibar at a rate of 100 millibar per year. These figures exceed the levels of radiation in the vicinity of Chernobyl and Fukushima in Japan.
The researchers also measured levels of radiation in the fruit of the trees in the affected regions, as well as in the area of the crater formed as a result of the test “castle Bravo”, when in 1954 at Bikini Atoll detonated a thermonuclear device with a capacity of 15 megatons. In both cases, the radioactive contamination was too high.
Video, photo All from Russia.