Soil Heavy Metal Accumulation and Ecological Risk in Mount Wuyi: Impacts of Vegetation Types and Pollution Sources

Land, Год журнала: 2025, Номер 14(4), С. 712 - 712

Опубликована: Март 26, 2025

Soil heavy metal (HM) contamination has become a critical global environmental issue, predominantly caused by industrial and agricultural operations. This study focuses on Mount Wuyi, UNESCO biodiversity hotspot major tea production base, to examine vegetation-mediated soil HM accumulation under anthropogenic impacts. We analyzed nine HMs (Mn, Cu, Zn, Cd, Hg, As, Pb, Cr, Ni) across diverse vegetation types using geochemical indices Positive Matrix Factorization (PMF) modeling. The findings revealed Mn Zn were dominant elements, Cr Pb concentrations exceeded regional background values 3.47 1.26 times, respectively. demonstrated significant pollution levels, while Cd Hg posed the highest ecological risks. Vegetation type significantly influenced distribution patterns, with cultivated areas shrublands (including gardens) accumulating higher of from transportation sources. Notably, bamboo forests exhibited natural resistance contamination. PMF analysis identified four primary sources: urbanization (27.94%), transport–agriculture activities (21.40%), practices (12.98%), atmospheric deposition (12.96%). These results underscore need for implementing clean energy solutions, phytoremediation strategies, tea-specific detoxification measures maintain security sustainability in this ecologically region.

Язык: Английский

Sporting footpaths and toxic dust: a risk-based assessment of urban, suburban, and rural exposure

International Journal of Environmental Health Research, Год журнала: 2025, Номер unknown, С. 1 - 28

Опубликована: Апрель 8, 2025

This study aims to assess the concentrations of potentially toxic elements (PTEs) in deposited dust (DD) from urban, suburban, and residential sporting footpaths (UFPs, SFPs, RFPs) Coimbatore, India, evaluate associated ecological health risks. Dust samples were collected located areas. The total PTEs found be USFs (1431 mg/kg), SFs (1073 RSFs (892 mg/kg). EFs for cadmium exceeded 185, suggesting severe contamination. Ecological risk assessment indicated that was primary contributor, accounting 84.7% risk. Health analysis showed children on faced non-carcinogenic risks 5.5 times higher than those adults, with highest carcinogenic observed USFs, followed by SSFs RSFs. highlights significant pollution urban areas, particularly cadmium, which poses elevated children's health. These findings suggest a need targeted management strategies minimize exposure PTEs, especially areas high pedestrian activity. Future research should focus long-term impacts control measures reducing PTE contamination public spaces.

Язык: Английский