Abstract
In this study, nine heavy metals (Cd, Cr, As, Hg, Pb, Cu, Ni, Be, and Sb) in the sediments of 17 typical rivers on the western bank of Taihu Lake were determined. Several statistical methods were applied to analyze the distribution, sources, pollution status, and potential ecological risk of these metals. The mean concentrations of heavy metals in sediments other than Be exceeded their local background values. Geoaccumulation index and potential ecological risk index analyses demonstrated that most sediment samples were contaminated and may pose ecological risks, especially those from the Taihu Lake estuary. In particular, Cd concentrations indicated moderate contamination and potentially serious to severe ecological risk. Principal component, cluster, and correlation analyses demonstrated that Ni, Sb, Cr, and Cu were derived from industrial sources, whereas the other metals had complex origins.
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This work was supported by the Open Research Fund of Jiangsu Province Key Laboratory of Environmental Engineering (ZX2018001), and the Taihu Water Pollution Control Fund (TH2018404).
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Wang, F., Ren, X., Qiu, Y. et al. Characterization and Risk Assessment of Heavy Metals in River Sediments on the Western Bank of Taihu Lake, China. Bull Environ Contam Toxicol 109, 609–615 (2022). https://doi.org/10.1007/s00128-021-03430-1
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DOI: https://doi.org/10.1007/s00128-021-03430-1