Risk-Targets Identification and Source Apportionment Associated with Heavy Metals for Different Agricultural Soils in Sunan Economic Region, China

Land, Journal Year: 2025, Volume and Issue: 14(5), P. 1058 - 1058

Published: May 13, 2025

Rapid socio-economic transition is often accompanied by intensive anthropogenic activities, leading to a significant build-up of heavy metals within farmland soils. However, this unwanted outcome may not be fully uniform but exhibit spatial variability, particularly involving different land uses. Based on 1839 topsoil samples from China’s Sunan Economic Region, study estimated the contamination profiles and associated ecological risks posed five (As, Cd, Cr, Pb, Hg) across cash-crop cereal-crop Further, we applied combination geostatistics positive matrix factorization (PMF) model identify targeted zones, priority pollutants, their underlying sources pave way for formulating detailed fine-scale risk-mitigation strategies. Our results revealed that metal pollution in displayed predominantly influenced localized Hg Cd accumulation, with more severe observed soils compared The 232,532 ha agricultural could designated as zones which excessive accumulation can identified pollutants contributing potential risk. PMF modeling also suggested was driven agrochemical application, whereas multiple simultaneously determined accumulation. findings offer valuable guidance optimizing management strategies aimed at mitigating soil degradation activities. In addition, integrated approach highlighted crucial values aspects spatially risk-targeted pollutants.

Language: Английский

Ecological Risk Assessment Is a Living Science: A Study on Heavy Metal(loid) Contamination in Typical Greenhouse Production Systems in Central China

Toxics, Journal Year: 2025, Volume and Issue: 13(4), P. 312 - 312

Published: April 17, 2025

To clarify the heavy metal(loid) contamination characteristics and health risk in nine typical greenhouse production areas Jingmen, Central China, total concentrations of As, Cd, Cr, Cu, Hg, Ni, Pb, Zn 176 soils 332 vegetables were analyzed. Cadmium (100%) Ni (4/44) exceeded Chinese standard limits, while As (36/44), Cd Cr (9/44), (1/44) international soil quality standards. The Pb contents all over both domestic limitations. pollution levels Hg potential ecological Zhanghe Lishi require more attention. Significant Cu edible vegetable parts suggested to be mainly caused by daily agricultural management. Although non-carcinogenic carcinogenic risks consumers workers are acceptable across different age groups, scientific management remediation must carried out simultaneously for sustainable future, especially GD ZH. Updated values environment food, together with 2023 updated geochemical background values, should applied time.

Language: Английский

Tracing sources-oriented ecological risks of metal(loid)s in sediments of anthropogenically-affected coastal ecosystem from northeast bay of Bengal

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 211, P. 117354 - 117354

Published: Dec. 2, 2024

Language: Английский