Soil Heavy Metal Sources Identification and Associated Risk Assessment Using Multivariate Statistical and Fourier Spectral Analysis
In the Shunde Area of Foshan, Pearl River Delta Economic Zone, 208 topsoil samples were collected from vegetable fields to measure the contents of copper, nickel, chromium, arsenic, lead, zinc, cadmium, and mercury. The results showed that the average concentration of all these eight heavy metals were higher than their background values of