Spatial distribution of metals in soils in Baltimore, Maryland: Role of native parent material, proximity to major roads, housing age and screening guidelines

Spatial and temporal variations in Pb concentrations and isotopic composition in road dust, farmland soil and vegetation in proximity to roads since cessation of use of leaded petrol in the UK

“…Vehicle exhaust emissions constituted a major source of Pb during the period of use of leaded petrol from the 1920s until the end of the 20 th century, generating high concentrations of Pb in soil and vegetation in the vicinity of roads as the result both of runoff affecting the immediate roadside environment and of atmospheric dispersion giving longer range transport (Harrison and Johnston, 1985, Zupančič, 1999, Legret and Pagotto, 2006, Preciado et al, 2007Yesilonis et al, 2008, Zehetner et al, 2009). …”

Identification of heavy metal pollutants using multivariate analysis and effects of land uses on their accumulation in urban soils in Beijing, China

“…Among the four metals, soil Pb and Zn contents significantly correlate to the distance from the city center (p<0.01), indicating the content of these two heavy metals in surface soil increased with the samples approaching city center. It was reported in several literatures that contents of Cd, Pb, Cu, and Zn in soils tended to increase as plots were sampled closer to the older inner city (Li et al 2001;Mellor 2001;Madrid et al 2002;Li et al 2004;Zhang 2006;Yesilonis et al 2008). Chen et al (2005b) studied Pb and Cu contents in soils of 30 Beijing parks and revealed there were significant correlations between the locations (older historic center and newer districts) and contents of Pb and Cu.…”

“…The sources of Cd in soil may be from industrial and traffic emission by fuel and coal combustion, deposition of solid wastes such as plastics, and application of Cd-containing phosphate fertilizers (Yesilonis et al 2008;Cao et al 2009). It was reported that Cd contamination in agricultural soils of the southern urban-rural zone of Beijing and in the vegetable fields may come from the irrigation of the river water polluted by electroplating plants and the application of plastic sheets in farmland (Hu et al 2006;Zheng 2005d).…”

A review of the distribution of particulate trace elements in urban terrestrial environments and its application to considerations of risk

“…Table 2 shows heavy metal concentrations in soils from various cities of the world. The main sources of these trace elements include the atmospheric deposition of partióles generated by automotive traffic, heating systems, and resuspended street dust, the uncontrolled disposal of urban and commercial wastes, and the addition of fertilizers and composted sewage sludge to the soil (Shi et al 2008;Yesilonis et al 2008;De Miguel et al 1998).…”