印度卡纳塔克邦达万加雷地区地下水样本中铀浓度的制图及对人群有效剂量的评估。
Mapping of uranium concentrations in groundwater samples of Davanagere district, Karnataka, India, and assessment of effective dose to the population.
机构信息
Department of Studies in Physics, University of Mysore, Manasagangotri, Mysuru 570 006, India.
Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru 560012, India.
出版信息
Radiat Prot Dosimetry. 2024 Jul 17;200(11-12):994-1002. doi: 10.1093/rpd/ncae036.
The geomorphology, geohydrology, lithology and ecological features of the area influence the uranium content in groundwater. The groundwater samples were collected from 75 locations of Davanagere district, Karnataka, India. Uranium analysis in the water samples was done using LED fluorimeter, based on fluorescence of dissolved uranyl salts. The uranium concentration in water samples varied from 18.41 to 173.21 μg L-1 with a geometric mean of 39.69 μg L-1. Higher uranium concentration in groundwater was observed in Harapanahalli and Jagalur taluk of Davanagere district, which falls in the Eastern Dharwar Craton, which is generally known to contain more radioactive minerals than the Western Dharwar Craton. The effective ingestion dose and lifetime cancer risk to the population were calculated using the obtained uranium concentration in drinking water.
该地区的地貌、水文地质、岩性和生态特征影响地下水的铀含量。从印度卡纳塔克邦达瓦纳吉地区的 75 个地点采集了地下水样本。水样中的铀分析采用基于溶解铀盐荧光的 LED 荧光计进行。水样中的铀浓度范围为 18.41 至 173.21μg/L，几何平均值为 39.69μg/L。在达瓦纳吉的哈拉帕纳哈里和贾古拉尔县，地下水的铀浓度较高，这些地区位于东德瓦尔克拉通，通常比西德瓦尔克拉通含有更多的放射性矿物。利用饮用水中获得的铀浓度计算了人群的有效摄入剂量和终生癌症风险。
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