Heavy metals pollution of soils is a major environmental problem. Heavy metals in urban soils could cause deleterious effects on human health by contacts with skin and intakes unconsciously. Soil and dust samples in squares and school campus in Beijing were collected for assessing the concentrations and health risks of heavy metals. The results showed that the concentrations of heavy metals in the soils and dusts presented a lognormal distribution. The concentrations of Cu, Pb and Zn in soils, As, Cu, Pb, Zn and Cd in dusts were all higher than the background concentrations of soils in Beijing, and 67% (27%), 13% (63%), 83% (100%), 73% (100%), 83% (100%) and 53% (100%) of the soils (dusts) samples exceeded the background values of soils in Beijing for As, Ni, Cu, Pb, Zn and Cd, respectively. Relatively speaking, Zn was accumulated in soils, while Cd, Cu, Pb and Zn were accumulated in dusts. The concentrations of Cu, Pb and Zn in dusts were significantly higher than in soils. The concentrations of Ni, Pb and Zn in dusts in school campus were significantly higher than in squares. There are no significant health risks of heavy metals from dusts in school campus.
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