A national-scale assessment of heavy metal contamination in urban road dust across China: a synthesis of data from 82 cities

The Potential Heavy Metal Pollution Transfer to Surface Water and Groundwater in an Old Mining Area of Hubei, China

As a typical historical mining city, Daye, Hubei, faces potential heavy metal migration risks from legacy mining activities. This study conducted a grid-based survey in 2020, analyzing 389 soil and 137 water samples using the Nemerow Pollution Index (NPI) and spatial statistics to assess pollution and transfer mechanis...

Multi-Compartment Pollution Assessment of Soil Metals and Air Pollutants in Lebanon’s Bekaa Valley: Integrating Geochemistry, Remote Sensing, and Multi-Scale Spatial Analysis

This study presents the first integrated multi-compartment assessment linking soil heavy- metal contamination and satellite-derived tropospheric air pollution in Lebanon’s Bekaa Valley. Six metals (Cd, Cr, Cu, Ni, Pb, Zn) were measured in 295 agricultural topsoils using DTPA extraction—which targets the labile, bioavai...

Integrated Geochemical and Spatial Assessment of Potentially Toxic Metal Contamination in Urban Soils of Turkestan, Kazakhstan: Implications for Environmental Monitoring and Sustainable Urban Development

Urban soils are sensitive indicators of environmental quality and anthropogenic pressure, particularly in arid regions where pollutant accumulation is enhanced by limited precipitation and intense evaporation. This study aimed to assess physicochemical properties, heavy metal contamination, spatial heterogeneity, and p...

Evaluating the pollution footprint of traffic-derived trace elements in roadside soil and the associated risks in a non-metropolitan city

This study evaluated the influence of multiple traffic-related conditions, including proximity to a road, car parking, highway, road junction, and transport stop, commonly observed yet largely overlooked in many non-metropolitan cities of developing nations, on trace element (TE) contamination in roadside soil and the...

Human health risk assessment of heavy metal pollution in airborne dust from Zakho City, Iraq

Soil heavy metals in a typical coal mining cluster of Northern China: Pollution, source apportionment, and eco-health risks

Summary Coal mining activities can alter soil heavy-metal accumulation and risk patterns. To identify pollution characteristics, sources, and ecological and health risks, 88 surface soil samples from Tongchuan Town, Ordos City, were analyzed using enrichment factor, potential ecological risk index, positive matrix fact...