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- W2356190741 abstract "Hydrogeochemistry and environmental effect of toxic metal elements have been studied related to both the mining activities and natural processes in a typical Au-As-Hg-Tl mineralized area in Southwest Guizhou Province. The results show high levels of toxic metal elements in both groundwater and surface stream water in the Lanmuchang Hg-Tl mineralised area and low concentrations in groundwater away from the mineralised area. High enrichment of metals was also detected in groundwater in the coal-mining areas. The dispersion of arsenic and thallium in surface stream water around the Hg-Tl mining area indicates that the concentration changes of As and Tl are controlled by the seepage of groundwater and the leaching of tailings from the mining area. On the contrary, no obvious enrichment of metals in shallow groundwater was found in the unmined Yanshang gold mineralised area. This may indicate that the natural process in the unmined area does not propose a hazard to the aquatic environment so far. It is demonstrated that the disturbed groundwater and the exposure of tailings related to mining activities are the main sources for the anomalous levels of toxic metal elements in the aquatic system, and that the hydrogeochemistry is a good approach for implicating the environmental impacts related to mining activities." @default.
- W2356190741 created "2016-06-24" @default.
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- W2356190741 date "2000-01-01" @default.
- W2356190741 modified "2023-09-25" @default.
- W2356190741 title "Hydrogeochemistry of toxic metal elements in an Au-As-Hg-Tl mineralised area in Southwest Guizhou" @default.
- W2356190741 hasPublicationYear "2000" @default.
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