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首页> 外文期刊>International Journal of Agricultural and Biosystems Engineering >Radionuclides in Samples of Soil of Different Types in the Kvemo Kartli Region (Georgia)
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Radionuclides in Samples of Soil of Different Types in the Kvemo Kartli Region (Georgia)

机译：Kvemo Kartli地区（乔治亚州）不同类型土壤样品中的放射性核素

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The aim of the present work is to determine the radionuclide content and radioactivity in various types of soil in the territory of Kvemo Kartli (Georgia). Within this territory samples of soil of various types [cinnamonic (Cn), cinnamonic leached (Cn-Ld), cinnamonic calcareous (Cn-Cr), grey cinnamonic dark (GCD), chernozems (Cz), and brown forest weakly unsaturated (BFWU)] were selected at 28 locations. Up to 22 radionuclides were identified in these samples. The mean (range) concentration of radionuclides of the Th-232 family (six identified radionuclides in total) was 27.0 (12.9-64.9) Bq/kg, that of the U-238 family (seven radionuclides in total) was 24.0 (10.2-47.9) Bq/kg, and that of the U-235 family (six radionuclides in total) was 1.1 (0.49-2.3) Bq/kg. Individual radionuclides were also identified: Be-7 [28.9 (16.1-42.6) Bq/kg)], K-40 [475 (290-942) Bq/kg], and Cs-137 [15.6 (0.2-88.1) Bq/kg]. Mean radium equivalent activity was 102 (57.1-210) Bq/kg; therein, the greatest values were observed for soil GCD, Cn-Ld, and Cn and slightly smaller ones for Cz, Cn-Cr and BFWU. Mean annual effective dose was 0.058 (0.035-0.122) mSv/y. Some features of radionuclides distribution were marked, in particular, depending on the soil type and sampling location. Some activity ratios of radionuclides were considered, in particular, U-238/U-235, U-238/Th-232, Ra-226/U-238, and Pb-210/Ra-226 (in the last case appreciable deviations in the positive direction from the equilibrium value were observed – up to 6.87 with an average value of 2.29; therein, a certain correlation with features of geotectonic structure in the studied territory was marked). Comparison with reference data was carried out.
机译：本工作的目的是确定Kvemo Kartli（乔治亚州）境内各种土壤中的放射性核素含量和放射性。在该区域内，各种类型的土壤样品[肉桂（Cn），肉桂浸出（Cn-Ld），肉桂钙质（Cn-Cr），灰色肉桂深色（GCD），黑钙石（Cz）和弱不饱和棕色森林（BFWU） ）]在28个地点中被选中。在这些样品中鉴定出多达22种放射性核素。 Th-232家族的放射性核素的平均（范围）浓度（共鉴定出六种放射性核素）为27.0（12.9-64.9）Bq / kg，U-238家族的放射性核素的平均浓度（范围为七种放射性核素）为24.0（10.2。 47.9）Bq / kg，而U-235系列（总共6个放射性核素）的Bq / kg为1.1（0.49-2.3）Bq / kg。还确定了单个放射性核素：Be-7 [28.9（16.1-42.6）Bq / kg），K-40 [475（290-942）Bq / kg]和Cs-137 [15.6（0.2-88.1）Bq / kg公斤]。平均镭当量活性为102（57.1-210）Bq / kg;其中，土壤GCD，Cn-Ld和Cn的最大值最大，而Cz，Cn-Cr和BFWU的值稍小。年平均有效剂量为0.058（0.035-0.122）mSv / y。标记了放射性核素分布的某些特征，特别是取决于土壤类型和采样位置。考虑了放射性核素的某些活度比，特别是U-238 / U-235，U-238 / Th-232，Ra-226 / U-238和Pb-210 / Ra-226（在最后一种情况下存在明显的偏差）从平衡值的正方向观察到–最高为6.87，平均值为2.29;其中，与研究区域的大地构造特征有一定的相关性）。与参考数据进行了比较。

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