title: Spatial-temporal distribution of phthalate esters from riverine outlets of Pearl River Delta in China.
abstract: The aquatic environments of the Pearl River Delta (PRD) in China have been contaminated by various industrial chemicals from local industries. In this study, the spatial-temporal distribution of six priority phthalate esters (PAEs) in surface water and sediments from the PRD was investigated. The PAEs were detected with total concentrations (Σ6PAEs) ranging from 0.35 to 20.70 μg L⁻¹ in surface water and dry weight ranging from 0.88 to 5.69 μg g⁻¹ in sediments. The Σ6PAEs concentrations in surface water were higher in the wet season than those in the dry season, while the opposite pattern was observed in sediments. Di(2-ethylhexyl) phthalate (DEHP) was the most abundant congener, which was higher than those reported in the literature. Risk quotients for relevant aquatic organisms were obtained and showed that most of these PAEs, in particular, butyl benzyl phthalate, DEHP and di-n-octyl phthalate, have significant potential health and ecological risks for the aquatic environment studied.
authors: Department of Chemistry, Jinan University, Guangzhou 510632, China E-mail: tyinph@jnu.edu.cn.
authors: Ting
authors: T
authors: Li
authors: Department of Chemistry, Jinan University, Guangzhou 510632, China E-mail: tyinph@jnu.edu.cn; Research Center of Analysis and Test, Jinan University, Guangzhou 510632, China.
authors: Pinghe
authors: P
authors: Yin
authors: Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutes, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China.
authors: Ling
authors: L
authors: Zhao
authors: Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutes, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China.
authors: Guifang
authors: G
authors: Wang
authors: Griffith School of Engineering, Griffith University, Nathan Campus, Brisbane, Queensland 4111, Australia.
authors: Qiming Jimmy
authors: QJ
authors: Yu
authors: Research Center of Analysis and Test, Jinan University, Guangzhou 510632, China.
authors: Huanyong
authors: H
authors: Li
authors: Research Center of Hydrobiology, Jinan University, Guangzhou 510632, China.
authors: Shunshan
authors: S
authors: Duan
mesh_terms: D002681:China; D004463:Ecology; D004784:Environmental Monitoring; D004952:Esters / Q000032:analysis*; D010795:Phthalic Acids / Q000032:analysis*; D045483:Rivers / Q000737:chemistry*; D012621:Seasons; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D004952:Esters; D010795:Phthalic Acids; D014874:Water Pollutants, Chemical; C032279:phthalic acid