School of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan 030024, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; Taiyuan Monitoring Station of National Urban Water Quality Monitoring Network, Taiyuan, Shanxi 030009, China.
School of Environment and Safety, Taiyuan University of Science and Technology, Taiyuan 030024, China.
Sci Total Environ. 2021 Jun 15;773:145003. doi: 10.1016/j.scitotenv.2021.145003. Epub 2021 Feb 2.
Shanxi Province of northern China is a typical mining concentration and arsenism area. Years of mining activities have resulted in serious regional groundwater problems in Shanxi. Therefore, it is of great significance to know the health risk of groundwater arsenic on residents under the background of mining activities. Kriging interpolation was used to illustrate the spatio-temporal dynamics of the health risks on groundwater arsenic based on a ten-year investigation. The groundwater arsenic concentrations decreased over time and the distribution of high arsenic concentrations shrank. High arsenic concentrations were mainly distributed in the northern and middle basin areas. The forecasted area of high risks in coal mining areas was 5623 km, which was larger than that in non-coal mining areas. The residents living around mining areas were more vulnerable to exposure to groundwater arsenic. Further, the output map outlines the high-risk zones in order to protect the safety of drinking water for residents. This study may be helpful for the policy-makers to adopt a lower limit for groundwater arsenic to the worst affected regions and groups.
中国北方的山西省是一个典型的矿业集中区和砷中毒区。多年的采矿活动导致山西省出现了严重的区域性地下水问题。因此，了解在采矿活动背景下，地下水砷对居民的健康风险具有重要意义。基于十年的调查，克里金插值法用于说明地下水砷健康风险的时空动态。地下水砷浓度随时间呈下降趋势，高砷浓度分布区域缩小。高砷浓度主要分布在北部和中部盆地地区。预测煤矿区高风险区面积为 5623 平方公里，大于非煤矿区。居住在矿区周围的居民更容易接触到地下水砷。此外，输出地图勾勒出了高风险区域，以保护居民饮用水安全。本研究可能有助于决策者为受影响最严重的地区和群体制定地下水砷的下限标准。
