October 19, 2025PLoS ONEOpen Access

Analysis of heavy metal contamination in topsoils across land use types within the Manghe River watershed in South Taihang and its source attribution

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Analysis reveals heavy metal pollution in topsoil across land uses in the Manghe River watershed, suggesting anthropogenic and natural sources.

Heavy metal concentrations exceeded background values, with Hg and Cd reaching alarming levels.
Geostatistical methods indicated distinct spatial distribution patterns for each heavy metal across different land uses.
Pollution load index reflects mild to severe pollution levels, particularly in industrial and mining lands.
PMF modeling identified industrial emissions and agricultural activities as major sources of heavy metal pollution.

Wan et al. (2025) studied this question.

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Analysis reveals heavy metal pollution in topsoil across land uses in the Manghe River watershed, suggesting anthropogenic and natural sources.