Heavy Metal Pollution and Its Environmental Impacts: A Review of Remediation Potential on Pb/Zn Smelting Sites
摘要
Smelting activities by heavy metals pose a serious impact on the local environment in an industrial area and threaten the local ecology. This chapter summarizes the data on heavy metals in China’s industrial regions in the past years. It has been investigated that the heavy metals released from natural and anthropogenic activities negatively impact neighborhoods, habitats, and human health. These approaches depend on and vary from geochemical properties, contaminants, nature of minerals, active or nonactive silicates, and the occurrence of metals. The geochemical properties are mineral liberation analyzer (MLA) and X-ray photoelectron spectroscopy (XPS). The contamination due to the leaching of these heavy metals and chemicals by leaching causes acidification and decreases the pH of the soil. The large-scale survey and small-scale monitoring have proved to be a potential remediation for ecological balance and ecosystem health. The non-ferrous contaminants, for example, Pb and Zn, are major soil pollutants. Therefore, in China, the strategies should primarily be focused on controlling emissions, especially Zn and Pb, along with other pollutants. As a global producer and developer of socio-economic development, China is a heavy consumer of metals and needs to reshape the environmental policies for environmental development.