title: Spatial and seasonal variations of polycyclic aromatic hydrocarbons in Haihe Plain, China.
abstract: A dynamic fugacity model was developed to simulate the spatial and seasonal variations of PAHs in Haihe Plain, China. The calculated and measured concentrations exhibited good consistency in magnitude with deviations within a factor of 4 in air and 2 in soil. The spatial distributions of PAHs in air were mainly controlled by emission while the seasonal variations were dominated by emission and gas-particle partition. In soil, the spatial distributions of PAHs were controlled by the soil organic carbon content while the seasonal variations were insignificant. The severest soil contamination was observed in Shanxi and followed by the southwest of Hebei province. Transfer fluxes of total PAHs between air and soil were calculated. The spatial distribution of air-to-soil flux was closely related to the landcover while the soil-to-air flux changed with soil organic matter content. Monte Carlo simulation was done to evaluate the uncertainty of the estimated results in air.
authors.affiliation: Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
authors.forename: Rong
authors.initials: R
authors.lastname: Wang
authors.forename: Hongying
authors.initials: H
authors.lastname: Cao
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
authors.forename: Wentao
authors.initials: W
authors.lastname: Wang
authors.forename: Liwen
authors.initials: L
authors.lastname: Zhang
authors.forename: Jiumeng
authors.initials: J
authors.lastname: Liu
authors.forename: Huiling
authors.initials: H
authors.lastname: Ouyang
authors.forename: Shu
authors.initials: S
authors.lastname: Tao
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002681:China; D004058:Diffusion; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D012621:Seasons; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants