title: A comparison of metal distribution in surface dust and soil among super city, town, and rural area.
abstract: One super city leading and supported by surrounding smaller cities, towns, and countries is a typical regional development pattern in China. To study the metal enrichment differences in environment among these regions, 91 urban surface dust and rural surface soil samples were collected from Beijing center (BJC), Miyun town (MYT), and Miyun county (MYC). Cu and Sb concentrations in urban surface dust of BJC were much higher than the less crowded MYT which stood out as a good indicator for brake system wear. Cd, Cu, Hg, Pb, Sb, and Zn concentrations in urban surface dust were 1.48, 1.57, 2.73, 1.58, 6.20, and 1.98 times higher than rural surface soils on average, respectively. Aerosol sedimentation was shown to mainly contribute to Cd and Pb in urban surface dust in parks and forest soils. Hospitals and clinics were found to contribute much Hg to the surrounding environment.
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China. yingxia@bnu.edu.cn.
authors.forename: Yingxia
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
authors.forename: Zhifeng
authors.initials: Z
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
authors.forename: Zhenyao
authors.initials: Z
authors.lastname: Shen
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
authors.forename: Yanpeng
authors.initials: Y
authors.lastname: Cai
mesh_terms: D002947:Cities; D004391:Dust / Q000032:analysis*; D004784:Environmental Monitoring; D019216:Metals, Heavy / Q000032:analysis*; D012424:Rural Population; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D004391:Dust; D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants
keywords: Beijing center; Metals; Miyun county; Miyun town; Rural surface soils; Urban surface dust