Comprehensive evaluation and analysis of heavy metal pollution degree in typical electroplating sites

In view of the problems of incomplete single index evaluation and insufficient spatial analysis in the pollution degree evaluation study, a comprehensive evaluation spatial model was built based on three pollution indexes to carry out research in the electroplating site. Based on the survey report of the electroplating site, remote sensing images and other data, a comprehensive evaluation spatial model was built to comprehensively evaluate the pollution degree and analyze the pollution distribution of the electroplating site. The results show that the concentration of Cr, Ni, Zn, and Cu elements in electroplating sites are relatively high, and the pollution exceeding standard is more prominent; The concentration of other heavy metal elements are relatively low, and there is no situation of exceeding the standard. The spatial distribution of different pollution indexes in different sites have high consistency, but there are also differences. In the spatial distribution of comprehensive evaluation values, there are significant differences in the distribution of functional areas among different sites, with the sewage treatment area and electroplating workshop area having higher comprehensive value. The evaluation content of a single index is relatively one-sided, and a comprehensive evaluation model can provide a more comprehensive analysis of the distribution of site pollution, providing a reference basis for future development of the site.