title: [Distribution and sources of oxygen and sulfur heterocyclic aromatic compounds in surface soil of Beijing, China].
abstract: 62 surface soil samples were collected from different environmental function zones in Beijing. Sulfur and oxygen heterocyclic aromatic compounds were detected by GC/MS. The objectives of this study were to identify the composition and distribution of these compounds, and discuss their sources. The results showed that the oxygen and sulfur heterocyclic aromatic compounds in the surface soils mainly contained dibenzofuran, methyl- and C2-dibenzofuran series, dibenzothiophene, methyl-, C2- and C3-dibenzothiophene series and benzonaphthothiophene series. The composition and distribution of the oxygen and sulfur heterocyclic aromatic compounds in the surface soil samples varied in the different environmental function zones, of which some factories and the urban area received oxygen and sulfur heterocyclic aromatic compounds most seriously. In Beijing, the degree of contamination by oxygen and sulfur heterocyclic aromatic compounds in the north surface soil was higher than that in the south. There were preferable linear correlations between the concentration of dibenzofuran series and fluorene series, as well as the concentration of dibenzothiophene series and dibenzofuran series. The oxygen and sulfur heterocyclic aromatic compounds in the surface soil were mainly derived from combustion products of oil and coal and direct input of mineral oil, etc. There were some variations in pollution sources of different environmental function zones.
authors.affiliation: Colleges of Geosciences, China University of Petroleum, Beijing 102249, China. dezhouxiu@163.com
authors.forename: Guang-Xiu
authors.initials: GX
authors.lastname: He
authors.forename: Zhi-Huan
authors.initials: ZH
authors.lastname: Zhang
authors.forename: Xu-Yang
authors.initials: XY
authors.lastname: Peng
authors.forename: Lei
authors.initials: L
authors.lastname: Zhu
authors.forename: Ling
authors.initials: L
authors.lastname: Lu
mesh_terms: D002681:China; D003031:Coal; D004784:Environmental Monitoring; D005579:Fossil Fuels; D008401:Gas Chromatography-Mass Spectrometry; D006571:Heterocyclic Compounds / Q000032:analysis*; D006841:Hydrocarbons, Aromatic / Q000032:analysis*; D010100:Oxygen; D012987:Soil / Q000032:analysis; D012989:Soil Pollutants / Q000032:analysis*; D013455:Sulfur
chemical_list: D003031:Coal; D005579:Fossil Fuels; D006571:Heterocyclic Compounds; D006841:Hydrocarbons, Aromatic; D012987:Soil; D012989:Soil Pollutants; D013455:Sulfur; D010100:Oxygen