Molchanova, I.V., Mikhailovskaya, L.N., Pozolotina, V.N., Zhuravlev, Y.N., Timofeeva, Y.O., Burdukovskii, M.L.
В журнале Russian Journal of Ecology
Год: 2013 Том: 44 Номер: 5 Страницы: 371-374
Evaluation of technogenic load on ecosystems of southern Primorye has shown that the soil contents of Sr-90 and Cs-137 vary within the ranges of 0.3-1.3 and 0.4-3.0 kBq/m(2), respectively; i.e., they do not exceed the level of background radioactivity that is considered normal at latitudes between 50A degrees and 60A degrees N. The presence of Cs-134 in the samples indicates a contribution from radionuclides discharged by the Fukushima nuclear accident. According to calculations, the additional Cs-137 input into the soils of the study area varies between 0.03 and 0.30 kBq/m(2). Soil analysis for heavy metals and trace elements has revealed an approximately twofold excess over safety norms (MACs) in the concentrations of technogenic Cu and Pb. For other elements, the excess is within the range of 8-32%.
