Heavy Metals in Suspended Particulate Matter of the Zhujiang River, Southwest China: Contents, Sources, and Health Risks.

ABSTRACT: To investigate the abundance, water/particle interaction behavior, sources, and potential risk of heavy metals in suspended particulate matter (SPM), a total of 22 SPM samples were collected from the Zhujiang River, Southwest China, in July 2014 (wet season). Nine heavy metal(loid)s (V, Cr, Mn, Ni, Cu, Zn, As, Cd and Pb) in SPM were detected. The results show that the selected heavy metal(loid)s in SPM appear in the following order: Mn (982.4 mg kg-1) > Zn (186.8 mg kg-1) > V (143.6 mg kg-1) > Cr (129.1 mg kg-1) > As (116.8 mg kg-1) > Cu (44.1 mg kg-1) > Ni (39.9 mg kg-1) > Pb (38.1 mg kg-1) > Cd (3.8 mg kg-1). Furthermore, both the enrichment factor (EF) and geo-accumulation index (Igeo) indicate that SPM is extremely enriched in metal(loid)s of Cd and As, while SPM is slightly enriched,

SUBMITTER: Zeng J 

PROVIDER: S-EPMC6572230 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature