title: Medium scale spatial structures of Polycyclic Aromatic Hydrocarbons in the topsoil of Tianjin area.
abstract: The spatial distribution patterns of Polycyclic Aromatic Hydrocarbons (PAHs) in soil are important to regional environmental assessment. In this paper, the spatial structural features of sixteen prior PAH compounds in the topsoil of Tianjin area, as well as soil properties, were studied. Results shown that medium scale spatial autocorrelations were well revealed. Spherical models with sills could be used to fit all experimental variograms. The spatial structures of PAHs contents demonstrated significant anisotropy. Air precipitation caused by the combustion of coal was the key factor in the formation of the spatial structural patterns of PAHs in the topsoil of Tianjin area.
authors.affiliation: Department of Urban & Environmental Sciences, MOE Laboratory of Earth Surface Process, Peking University, Beijing, China. xjwang@urban.pku.edu.cn
authors.forename: X J
authors.initials: XJ
authors.lastname: Wang
authors.forename: Y
authors.initials: Y
authors.lastname: Zheng
authors.forename: R M
authors.initials: RM
authors.lastname: Liu
authors.forename: B G
authors.initials: BG
authors.lastname: Li
authors.forename: J
authors.initials: J
authors.lastname: Cao
authors.forename: S
authors.initials: S
authors.lastname: Tao
mesh_terms: D002681:China; D004784:Environmental Monitoring / Q000379:methods; D013058:Mass Spectrometry; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000737:chemistry*; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012987:Soil; D012989:Soil Pollutants