摘要
Mining and smelting activities are the main causes for the in creasing pollution of heavy metals in soil, water body and stream sediment. An e nvironmental geochemical investigation was carried out in and around the Panzhih ua mining and smelting area to determine the extent of chemical contamination in soil and sediment. The main objective of this study was to investigate the envi ronmental geochemistry of Ti, V, Cr, Mn, Cu, Pb, Zn and As in soil and sediment and to assess the degree of pollution in the study area. The data of heavy metal concentrations reveal that soils and sediments in the area have been slightly c ontaminated. Geochemical maps of I\-\{geo\} of each heavy metal show that the co ntaminated sites are located in V-Ti-magnetite sloping and smelting, gangues d am. The pollution sources of the selected elements come mainly from dusts result ant from mining activities and other three-waste-effluents. The area needs to be monitored regularly for trace metal, especially heavy metal enrichment.
Mining and smelting activities are the main causes for the increasingpollution of heavy metals in soil, water body and stream sediment. An environmental geochemicalinvestigation was carried out in and around the Panzhihua mining and smelting area to determine theextent of chemical contamination in soil and sediment. The main objective of this study was toinvestigate the environmental geochemistry of Ti, V, Cr, Mn, Cu, Pb, Zn and As in soil and sedimentand to assess the degree of pollution in the study area. The data of heavy metal concentrationsreveal that soils and sediments in the area have been slightly contaminated. Geochemical maps ofI_(geo) of each heavy metal show that the contaminated sites are located in V-Ti-magnetite slopingand smelting, gangues dam. The pollution sources of the selected elements come mainly from dustsresultant from mining activities and other three-waste-effluents. The area needs to be monitoredregularly for trace metal, especially heavy metal enrichment.
基金
ChinaPostdoctoralScienceFoundation
ChinaLandandResourcesMinistrySpecialProject.
关键词
环境地球化学
重金属污染
土壤污染
河流沉积
攀枝花市
采矿业
熔炼
environmental geochemistry
heavy metal contamination
stream sediment
soil
mining and smelting activities
panzhihua area
