Source analysis of heavy metal pollution in agricultural soil irrigated with sewage in Wuqing, Tianjin.

ABSTRACT: In this study, the contents of heavy metals and Cd and Pb isotope ratios of agricultural soil and potential source samples collected from farmland receiving sewage irrigation in Wuqing District, Tianjin, China were determined. Multiple methods were used for source analysis, including positive matrix factorization (PMF), correlation analysis, principal component analysis (PCA), and the Cd and Pb isotope ratio method. The results showed that agricultural soil was slightly contaminated by heavy metals in the research area, with relatively higher Cd and Pb accumulation levels compared to those of other heavy metals. Four types of pollution sources, including the soil parent material sources, industrial emission sources, agricultural practice sources, and mixed sources of sewage irrigation and

SUBMITTER: Wang J 

PROVIDER: S-EPMC8426478 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature