title: PBDEs as indicator chemicals of urbanization along an urban/rural gradient in South China.
abstract: Fourteen polybrominated diphenyl ethers (PBDEs) were measured in surface sediments collected from an urban watershed in a rapidly urbanizing region, Shenzhen, China. BDE209 was the predominant congener of PBDEs detected in surface sediments, which was consistent with the fact that technical deca-BDE mixtures are the dominant PBDE formulation used in China, especially the Pearl River Delta. A positive association between sediment PBDEs and catchment degree of urbanization suggested that the rapid urbanization process may be affecting the PBDEs levels in surface sediments. Similar to the "urban heat island effect", an "urban pollution island effect" was observed in the present study. These results indicated that PBDEs can be used as potential indicator chemicals of catchment's urbanization process in the present region.
authors: Shenzhen Key Laboratory of Circular Economy, Shenzhen Graduate School, Peking University, Shenzhen 518055, China.
authors: Jian-Lin
authors: JL
authors: Sun
authors: Zheng-Xia
authors: ZX
authors: Chen
authors: Hong-Gang
authors: HG
authors: Ni
authors: Hui
authors: H
authors: Zeng
mesh_terms: D002681:China; D004784:Environmental Monitoring; D019015:Geologic Sediments / Q000737:chemistry; D055768:Halogenated Diphenyl Ethers / Q000032:analysis*; D045483:Rivers / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D014507:Urbanization; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D055768:Halogenated Diphenyl Ethers; D012989:Soil Pollutants; D014874:Water Pollutants, Chemical