Effects of soil erosion on natural radioactivity in water in a typical quarry lake in Vietnam based on model assessment.

Autor:	Nguyen, Van Thang, Huynh, Nguyen Phong Thu, Huynh, Thi Yen Hong, Truong, Huu Ngan Thy, Le, Binh An, Huynh, Truc Phuong, Le, Cong Hao
Předmět:	NATURAL radioactivity SOIL erosion RADIOACTIVITY QUARRIES & quarrying ATMOSPHERIC deposition EROSION LAKES SOIL moisture
Zdroj:	Journal of Radioanalytical & Nuclear Chemistry; Jun2023, Vol. 332 Issue 6, p2359-2366, 8p, 1 Color Photograph, 3 Charts, 2 Graphs
Abstrakt:	A quarry lake is a quarry that is filled with water after abandonment. In the lake water, natural radionuclides contaminate with a certain level, as a result of atmospheric deposition, groundwater diffusion, soil erosion, and sediment–water–air interaction. In this study, 40K, 226Ra, and 232Th were analysed for surface soil and water in a specific quarry lake in Vietnam. The seasonable variation of radioactivity in water was investigated. It was found that the activity concentration correlated with the TDS of water and the higher activity concentration was found in the wet season. The RUSLE model was used to predict the average annual rate of soil erosion in the study site. Based on the model prediction, the inflow rate of 40K, 226Ra, and 232Th in water were 4.73, 36.75, and 768.5 GBq y−1 respectively. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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