Distributions and Influencing Factors of Heavy Metals in Soils from Zhenjiang and Yangzhou, China

Minerals, Journal Year: 2025, Volume and Issue: 15(2), P. 171 - 171

Published: Feb. 13, 2025

Heavy metal pollution in surface soils poses significant environmental and health risks, yet the factors driving its spatial distribution remain poorly understood certain regions. This study investigates key influencing of heavy contamination across Zhenjiang Yangzhou, Jiangsu Province, China. analyzed chemical compositions 449 soil samples from area. Descriptive statistics, stepwise multiple regression, random forest (RF) method were employed to identify affecting migration metals soils. According national standards for risk screening values, cadmium (Cd) mercury (Hg) identified as most heavily contaminated The average concentrations Cd Hg 2.38 2.32 times higher than provincial background respectively. A substantial proportion exceeded thresholds established agricultural land. Key include iron oxides, pH, total organic carbon (Corg.), cation exchange capacity (CEC), weathering intensity, represented by Chemical Index Alteration (CIA). By integrating advanced data analysis techniques, this provides new insights into mechanisms governing soils, offering a foundation targeted management mitigation strategies.

Language: Английский

Geogenic and anthropogenic sources of heavy metals in soil: An ecological and health risk assessment in the granitic terrain of South India

CATENA, Journal Year: 2025, Volume and Issue: 254, P. 108960 - 108960

Published: March 23, 2025

Language: Английский