Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 23, Issue 8, Pages 7849-7860Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-015-5911-7
Keywords
Beijing center; Metals; Miyun county; Miyun town; Rural surface soils; Urban surface dust
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Funding
- National Science Foundation for Innovative Research Group [51121003]
- National Science Foundation of China [51278054]
- FST Short Term PD & VF Scheme from University of Macao
- University of Macao [MYRG072(Y1-L2)-FST13-LIC]
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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.
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