Study on the Occurrence Characteristics, Bioavailability, Ecological Risk and Sources Apportionment of Heavy Metals from Surface Sediments in Keluke-Tuosu Lakes

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This research aims to assess the occurrence and risks of heavy metals in surface sediments of Keluke and Tuosu Lakes.
Collected 33 surface sediment samples from the lakes
Analyzed samples using ICP-MS and various evaluation methods including RAC, RSP, PLI, and PCA
Assessed concentrations and ecological risks of heavy metals such as Cd, Cr, Cu, Pb, Zn, Hg, As, and Mn.
Average concentration of heavy metals ranked from high to low as Mn > Zn > Cr > Cu > As > Pb > Cd > Hg
PCA analysis indicated human inputs from mining activities significantly affect heavy metal distribution
Cd showed the highest bioavailability while the lakes were classified under moderate pollution, particularly due to Hg.

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Study investigates heavy metals' bioavailability and ecological risks in lakes, indicating sources of pollution.

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Wen et al. (2026) studied this question.

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