Abstract

We present the results of the study of the radionuclide composition of atmospheric aerosols and seasonal behavior of pollutants in the surface air layer in Rostov-on-Don, which is located in the steppe zone. The data were obtained from the study of atmospheric aerosol samples taken in 2001–2009. The volumetric activity of radionuclides was measured using the gamma-spectrometric radionuclide analysis. The spring–summer maxima and autumn–winter minima were revealed in the seasonal behavior of the volumetric activity of radionuclides in the atmosphere caused by changes in weather parameters. According to the radionuclide air pollution index, the highest degree of radiation hazard for the city is associated with the product of ²²²Rn–²¹⁰Pb decay. The special significance of ¹³⁷Cs as a potentially dangerous radionuclide in the case of a large-scale nuclear accident is noted.

中文翻译：

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顿河畔罗斯托夫市大气气溶胶放射性核素组成的气候因子

摘要

我们介绍了位于大草原区顿河畔罗斯托夫的大气气溶胶的放射性核素组成和污染物在地面空气层中的季节性行为的研究结果。数据来自2001-2009年间对大气气溶胶样品的研究。使用伽马能谱放射性核素分析法测量放射性核素的体积活度。春季至夏季的最大值和秋季至冬季的最小值是由天气参数变化引起的大气中放射性核素体积活动的季节性行为揭示的。根据放射性核素的空气污染指数，该城市最高的辐射危害程度与²²² Rn– ²¹⁰ Pb衰减的乘积有关。的特殊意义注意到在大规模核事故中¹³⁷ Cs是潜在危险的放射性核素。