Ecological problems of Chernobyl
Author: Slinchak A.I.
Reference: Journal: Journal of the Pskov State University. Series: Natural and physical and mathematical sciences, Year: 2007, Issue 2
Keywords: radioactive contamination, iodine, cesium-137, strontium-90
Abstract: [… The dynamics of radioactive contamination of the affected areas are divided into four periods:
1 – April-July 1986, the condition of radiation contamination was constituted, mainly short-lived radionuclides such as iodine-131, iodine-133, iodine-135, lanthanum-140, barium-140, molybdenum-99, tellurium-132, and neptunium-239; radionuclides with a half-life of 1 year; 2 – 1986-1987., Along with the long-lived radionuclides, were present, in appreciable quantities, radionuclides serenium-144, ruthenium-106, cesium-134, and curium-242; 3 – Since 1988 the radioactive situation has been constituted mainly by radionuclides cesium-137 and strontium-90, and in the evacuation zone; plutonium-238, plutonium-239, plutonium-240 and plutonium-241; 4 – contamination of soil, except those specified in the third period of radionuclides, will be determined by the daughter isotope Pu-241 – americium-241. ..]
URL: http://cyberleninka.ru/article/n/ekologicheskie-problemy-chernobylya
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