|
| Spatial distribution and risk assessment of heavy metal pollution from enterprises in the Yangtze River basin |
| Received:September 29, 2024 |
| View Full Text View/Add Comment Download reader |
| KeyWord:enterprise heavy metal pollution;multi-source data;risk assessment;county-level scale;Yangtze River basin |
| Author Name | Affiliation | E-mail | | WANG Shihao | State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | | | LIU Hanbing | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | liuhanbing@tcare-mee.cn | | ZHANG Rong | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | | | CHEN Kun | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | chenkun0697@126.com | | ZHAO Chen | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | | | LIU Jing | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | | | LIANG Jiahui | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | | | SHI Huading | Technical Centre for Soil, Agriculture and Rural Ecology and Environment, Ministry of Ecology and Environment, Beijing 100012, China | | | GU Qingbao | State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China | | | XU Xinliang | State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China | | | HUANG Lin | Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China | |
|
| Hits: 445 |
| Download times: 463 |
| Abstract: |
| This study analyzes the spatial distribution of heavy metal pollution by key enterprises in the Yangtze River basin, utilizing data on heavy metal enterprises. Based on the "source-pathway-receptor" framework of heavy metal pollution, we have developed a risk assessment index system for enterprise heavy metal contamination. The assessment revealed that the enterprises and their discharge outlets were primarily located along the middle and lower reaches of the main river system, as well as the Poyang Lake and Taihu Lake basins. The provinces of Jiangxi, Hunan, Yunnan, and Sichuan were hotspots for smelting operations, exhibiting the greatest diversity of heavy metal pollutants. Counties with high risk from pollution sources were predominantly located in Jiangxi, Hunan, Jiangsu, and Yunnan. High-risk transmission pathways were mainly found in Jiangxi, Jiangsu, Anhui, and Hunan. Vulnerability of pollution receptors showed significant clustering in the upstream areas of Sichuan and Chongqing, the midstream region of Hubei, and downstream areas, with medium to high vulnerability predominantly in Hubei, Hunan, Sichuan, Anhui, and Chongqing. Approximately 14.26% of the counties in the Yangtze River basin were categorized at high or very high comprehensive risk levels for heavy metal pollution, with high-risk counties primarily distributed in Jiangxi, Hunan, and Jiangsu. Additionally, parts of Sichuan, Yunnan, Anhui, Hubei, and Chongqing face risks of exceeding pollution standards. Further preventive and control measures are necessary to mitigate pollution risks in the future. |
|
|
|
