title: Persistence, temporal and spatial profiles of ultraviolet absorbents and phenolic personal care products in riverine and estuarine sediment of the Pearl River catchment, China.
abstract: A variety of personal care products have been classified as emerging contaminants (ECs). Occurrence, fate, spatial and vertical profiles of 13 ultraviolet absorbents, triclocarban (TCC) and its dechlorinated products, triclosan (TCS), 2-phenylphenol and parabens were investigated in riverine and estuarine sediment of the Pearl River catchment, China. Bisphenol A (BPA), a widely applied plasticizer, was also investigated. The ECs were widely present in the bed sediment. TCC was the most abundant with a maximum concentration of 332ngg-1dry weight. The other prominent ECs included BPA, TCS, octocrylene, and benzotriazole UV stabilizers UV326 and UV328. Treated wastewater effluent was the major source of the ECs in the riverine sediment. TCC, BPA, TCS, methyparaben, UV531, UV326, and UV328 were also detected throughout the estuarine sediment cores, indicating their persistence in the sediment. Temporal trends of the ECs in the sediment cores reflected a combined effect of industrial development, population growth, human life quality improvement, and waste treatment capacity in the Pearl River Delta over the last decades. TCC dechlorination products were frequently detected in the bed sediment with higher levels near treated effluent outlets but only occasionally observed in the sediment cores, suggesting insignificant in-situ TCC dechlorination in the sediment.
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China. Electronic address: pengx@gig.ac.cn.
authors.forename: Xianzhi
authors.initials: X
authors.lastname: Peng
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China.
authors.forename: Songsong
authors.initials: S
authors.lastname: Xiong
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Weihui
authors.initials: W
authors.lastname: Ou
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Zhifang
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Guangzhou Institute of Quality Monitoring and Inspection, Guangzhou, 510110, China.
authors.forename: Jianhua
authors.initials: J
authors.lastname: Tan
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China.
authors.forename: Jiabin
authors.initials: J
authors.lastname: Jin
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
authors.forename: Caiming
authors.initials: C
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Provincial Key Laboratory of Environmental Utilization and Protection of Guangdong, Guangzhou, 510640, China.
authors.forename: Yujuan
authors.initials: Y
authors.lastname: Fan
mesh_terms: D002681:China; D003358:Cosmetics / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D063366:Estuaries; D019015:Geologic Sediments / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D045483:Rivers / Q000737:chemistry*; D062206:Spatial Analysis; D013473:Sunscreening Agents / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D003358:Cosmetics; D010636:Phenols; D013473:Sunscreening Agents; D014874:Water Pollutants, Chemical
keywords: Emerging contaminants; Pearl river catchment; Personal care products; Sediment record; Ultraviolet absorbents