September 5, 2025Scientific ReportsOpen Access

Source apportionment and ecological risk assessment of heavy metals in sediments of Dongping lake based on PCA-PMF model

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Analysis of heavy metals reveals significant ecological risk factors in Dongping Lake, highlighting human impacts.

The study identifies significant ecological risks from heavy metals in the sediments of Dongping Lake.
Concentrations of heavy metals showed significant spatial heterogeneity, with higher levels in central and southern regions.
Three major sources of metal accumulation were recognized—industrial/agricultural activities, traffic emissions, and geological background.
Hg and Cd were identified as primary risk factors with contribution rates of over 75%, highlighting human activities' impact.

Mao et al. (2025) studied this question.

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