Document Detail


Contamination of polycyclic aromatic hydrocarbons (PAHs) in urban soils in Beijing, China.
MedLine Citation:
PMID:  15992927     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Soil contamination with polycyclic aromatic hydrocarbons (PAHs) is an increasing problem in many countries, including China. An extensive and systematic survey has been undertaken to evaluate the contamination with PAHs of urban soils in Beijing, China. Soil samples were collected from campuses of universities, schools and kindergartens, public squares, fallow land and roadsides, and were analyzed for 16 PAHs by GC-MS. There was a high variability in the total PAHs (SigmaPAHs) concentrations, ranging from less than 366 to 27,825 ng g(-1). The highest SigmaPAHs concentrations were found at roadsides and industrial sites. Soil organic carbon (SOC) is one of the important factors that can influence the concentrations of PAHs in soils. It was found that concentrations of SigmaPAHs were significantly correlated with that of soil organic carbon. To trace the sources of PAHs, the ratios of phenanthrene to anthracene and fluoranthene to pyrene were used to identify pyrogenic and petrogenic sources, respectively. In most cases, PAHs in soils in urban areas of Beijing were pyrogenic. These sources included motor vehicle exhausts, industrial activities and coal burning. These data can be further used to assess the health risk associated with soils polluted with PAHs.
Authors:
Lily Tang; Xiang-Yu Tang; Yong-Guan Zhu; Ming-Hui Zheng; Qi-Long Miao
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environment international     Volume:  31     ISSN:  0160-4120     ISO Abbreviation:  Environ Int     Publication Date:  2005 Aug 
Date Detail:
Created Date:  2005-07-25     Completed Date:  2005-12-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7807270     Medline TA:  Environ Int     Country:  United States    
Other Details:
Languages:  eng     Pagination:  822-8     Citation Subset:  IM    
Affiliation:
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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MeSH Terms
Descriptor/Qualifier:
Carbon / analysis
China
Cities
Environmental Monitoring
Fossil Fuels
Polycyclic Hydrocarbons, Aromatic / analysis*
Soil Pollutants / analysis*
Chemical
Reg. No./Substance:
0/Fossil Fuels; 0/Polycyclic Hydrocarbons, Aromatic; 0/Soil Pollutants; 7440-44-0/Carbon

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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