Characteristics of Grain Size and Heavy Metal Elements in Surface Sediments of Lakes with Different Salinities in the Golmud River Basin and Their Environmental Indications

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Key Points

The research aims to explore the relationship between sediment grain size and heavy metal distribution in lakes of varied salinity.
Analyzed surface sediments from Haihe and Chaqi Salt Lakes in Golmud River Basin.
Measured grain size and concentrations of heavy metals (Cd, Cr, Cu, Pb, Zn, As, Mn).
Utilized potential ecological risk index to assess environmental implications.
Chaqi Salt Lake sediments primarily consist of medium-coarse silt and fine silt, indicating a stable depositional environment.
Cr, Cu, Pb, Zn, and As levels in Haihe Lake are higher than in Chaqi Salt Lake, showing significant spatial heterogeneity.
Ecological risk assessment indicates low enrichment and minimal pollution risk, with Cd and As identified as key elements.

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Analyzes sediment characteristics and heavy metal distribution in lakes, indicating environmental risks.

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DONG et al. (2026) studied this question.

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