| Autor: |
Liu Z; Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China., Zhou H; Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China., Cao WJ; Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China., Liu W; Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China.; Key Laboratory of Karst Dynamics, Ministry of Natural Resources & Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China.; Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification, Ministry of Natural Resources, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China., Lan ST; Institute of Geological Survey, China University of Geosciences, Wuhan 430074, China. |
| Jazyk: |
čínština |
| Zdroj: |
Huan jing ke xue= Huanjing kexue [Huan Jing Ke Xue] 2021 Jan 08; Vol. 42 (1), pp. 175-183. |
| DOI: |
10.13227/j.hjkx.202006050 |
| Abstrakt: |
In order to assess the health risks of heavy metals in surface water of Qingjiang River, surface water samples were taken at designed cross-sections of the river and analyzed for Cr, Cu, Zn, Pb, Cd, As, and Mn. Health risks from these heavy metals for adults and children in wet and dry seasons were compared by water environmental health risk assessment model of the USEPA. It found that the main excessive element is Mn, concentrating in the Danshui, Yantouxi, and Pingluoxi, the slightly excessive element is As, the concentration of Mn was above national standard, and it mainly distributed in Danshui, Yantouxi, and Pingluoxi, As was slightiy over the standard, and it concentrated in Wujiahe, The content of heavy metals during wet season were all higher than those during dry season. Cr, Cu, Zn, and Cd are mainly originated from the nature, Pb and As are separately mainly originated from traffic and agriculture, Mn originated from mining mainly in the downstream, while it has natural source from upper to middle. The health risks of heavy metals in surface water to adults and children in wet season are higher than those in dry season. The main health risk area was the midstream. As was the highest health risk element and children were the most preventive group. Specially, people in towns who drink the water from midstream should pay more attention. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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