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| Groundwater source apportionment and health risk assessment of heavy metals in typical chemical industry of Shanxi Province,China |
| Received:January 03, 2025 Revised:April 28, 2025 |
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| KeyWord:groundwater;heavy metals;fuzzy comprehensive evaluation;source apportionment;health risk assessment |
| Author Name | Affiliation | E-mail | | ZHANG Qiyuan | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China Center for Environmental Health Risk Assessment and Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | DANG Xiuli | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China | dxl@syau.edu.cn | | GENG Jian | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China | | | ZHU Hang | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China | | | SHI Jiayue | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China | | | WEI Xinni | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China | | | LIU Peng | College of Land and Environment, Shenyang Agricultural University, National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Northeast Key Laboratory of Conservation and Improvement of Cultivated Land, Ministry of Agriculture and Rural Affairs, Shenyang 110866, China | | | ZHAO Long | Center for Environmental Health Risk Assessment and Research, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | zhaolong1227@126.com |
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| Abstract: |
| To study the groundwater quality, the sources of heavy metal pollution and their risk to human health in typical chemical industrial of Shanxi Province, nine heavy metal elements including Fe, Mn, Cu, Zn, Al, Hg, Cd, Cr6+ and Pb were detected at 39 sampling points in the research area. Descriptive statistical analysis and fuzzy comprehensive evaluation method were used to determine the groundwater quality. The receptor model of absolute principal component analysis - multiple linear regression(APCS-MLR)was adopted to analyze the sources of heavy metals, and the health risk assessment model was applied to evaluate the risk of heavy metals in groundwater. The results showed that:the average concentrations of heavy metals in the groundwater in the study area were ranked as Mn> Al>Fe>Cu>Zn>Cr6+>Pb>Hg>Cd in descending order. The concentrations of Mn and Al exceeded the Class Ⅳ standard in the Groundwater Quality Standard(GB / T 14848—2017), the over-standard rates were 12.82% and 2.56%, respectively, and the concentration of other heavy metals did not exceed the Class Ⅳ standard. The fuzzy comprehensive evaluation showed that 15.38% of the 39 sampling points exceeded the Class Ⅳ groundwater quality standard. There were four main sources of heavy metals in groundwater,including geological background(28.55%),agricultural activities(23.20%),industrial activities(21.77%),and transportation(26.48%). Drinking water intake was the main exposure route for adults and children. The non-carcinogenic risks of heavy metals to human body are all within the acceptable range,and the non-carcinogenic risks of Mn to adults and children are higher. The average cancer risk of Cr6+ for adults and children is within an acceptable range and there may be a cancer risk. Therefore,in order to ensure the safety of the groundwater environment in the chemical industrial and its surrounding areas,it is necessary to strengthen the control of the sources and the risks of heavy metal pollution in groundwater. |
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