title: Polycyclic aromatic hydrocarbons in urban green spaces of Beijing: concentration, spatial distribution and risk assessment.
abstract: A comprehensive investigation of the levels, spatial distribution of polycyclic aromatic hydrocarbons (PAHs) in urban green space soils of Beijing, China, was conducted, and the potential human health risks associated with the levels observed were addressed. The objective of this study was to determine concentration, spatial distribution, and health risk of 15 PAHs in 121 surface soil (0-5 cm) samples collected from four types of green space, such as park green space (PGS), roadside green space (RDS), residential green space (RGS), and attached green space (AGS). Results showed that the highest concentrations of 15 PAHs was in soils of RDS, followed by RGS, PGS, and AGS. The level of PAHs pollution was seriously and mainly distributed in the central and southwest of the city. Incremental lifetime cancer risks (ILCRs) associated with exposures to PAHs in soil was calculated separately for children and adults under normal and extreme conditions. The results showed that ILCRs for urban green space soil of Beijing were low under normal conditions. But individual samples are seriously polluted, and its potential health risks cannot be ignored.
authors: Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding , National Engineering Research Center for Floriculture , Beijing Laboratory of Urban and Rural Ecological Environment, College of Landscape Architecture, Beijing Forestry University, No. 35 East Qinghua Road, Haidian District, Beijing, 100083, China.
authors: Juan
authors: J
authors: Zhang
authors: Beijing Institute of Landscape Architecture, Beijing, 100102, China.
authors: Jianzhi
authors: J
authors: Wu
authors: Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding , National Engineering Research Center for Floriculture , Beijing Laboratory of Urban and Rural Ecological Environment, College of Landscape Architecture, Beijing Forestry University, No. 35 East Qinghua Road, Haidian District, Beijing, 100083, China. Yanwopaper@yahoo.com.
authors: Yan
authors: Y
authors: Liu
mesh_terms: D000328:Adult; D000068476:Beijing; D002648:Child; D004784:Environmental Monitoring; D006801:Humans; D009369:Neoplasms; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D018570:Risk Assessment; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D012989:Soil Pollutants
keywords: Concentration; Incremental lifetime cancer risks; Polycyclic aromatic hydrocarbons; Soil; Urban green space