THE CONTENT OF ARTIFICIAL RADIONUCLIDES IN MUSHROOMS OF THE PINE FOREST IN THE NEAR IRTYSH AREA.

2020

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DOI 10.46646/sakh-2020-1-376-378
Data confidence 70 medium
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Abstract

В статье приведены значения удельной активности искусственных радионуклидов 137 Cs, 90 Sr, 241 Am, 239+240 Pu в грибах в сосновом бору на территории, прилегающей к Семипалатинскому испытательному полигону (далее -СИП).Установлено, что содержание радионуклидов 241 Am и 90 Sr в основном находится ниже предела обнаружения используемого аппаратурно-методического обеспечения.Содержание 137 Cs варьирует от <0,2 Бк/кг до 260±50 Бк/кг, значения удельной активности 239+240 Pu не превышают 3,7±0,5 Бк/кг.При этом ожидаемая годовая эффективная доза внутреннего облучения населения при потреблении грибов составит ~0,2 мЗв/год, где основной вклад вносит доза от радионуклида 90 Sr ~84%.The article gives values of activity concentrations of artificial radionuclides 137 Cs, 90 Sr, 241 Am, 239+240 Pu in mushrooms of the pine forest in the territory adjacent to Semipalatinsk Test Site (STS).It was established that the content of 241 Am and 90 Sr is mainly below the detection limit of the methodological instrumentation employed.The content 137 Cs varies from <0.2 Bq/kg to 260±50 Bq/kg, values of 239+240 Pu activity concentration do not exceed 3.7±0.5Bq/kg.At the same time, the expected annual internal exposure dose of the population from mushrooms consumption will be ~0.2 mSv/year, in which the main contribution is made by a radionuclide dose from 90 Sr equal to ~84%.