title: Occurrence, spatial and temporal distributions of perfluoroalkyl substances in wastewater, seawater and sediment from Bohai Sea, China.
abstract: In this study, surface seawater and sediment samples were collected from Bohai Sea, China, to investigate the temporal and spatial distributions of perfluoroalkyl substances (PFASs) in that area. The total concentrations of PFASs in seawater and sediment samples ranged from below method limit of quantification (<MLQ) to 99.4 ng/L, and from 0.33 to 2.78 ng/g dw, respectively. PFOA was the predominant PFASs in both of surface seawater and sediment samples, with a median concentration of 4.97 ng/L in seawater and 0.24 ng/g dw in sediment sampled in July, respectively. Seasonal variation of the total PFAS concentrations was found in seawater samples, but not in the sediments. The concentrations of the total measured PFASs in water samples from drain outlets ranged from 103 ng/L to 443 ng/L, which was four times higher than that in seawater from the Bohai Sea, suggesting that discharge of wastewater from drain outlets was responsible for the contamination of PFASs in Bohai Sea area.
authors.affiliation: Key Laboratory of Coastal Ecology and Environment of State Oceanic Administration, Department of Marine Chemistry, National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China; Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, China. Electronic address: hchen@nmemc.org.cn.
authors.forename: Hong
authors.initials: H
authors.lastname: Chen
authors.affiliation: Key Laboratory of Coastal Ecology and Environment of State Oceanic Administration, Department of Marine Chemistry, National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China. Electronic address: rjsun@nmemc.org.cn.
authors.forename: Ruijun
authors.initials: R
authors.lastname: Sun
authors.affiliation: Key Laboratory of Coastal Ecology and Environment of State Oceanic Administration, Department of Marine Chemistry, National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China. Electronic address: zhangcan@nmemc.org.cn.
authors.forename: Can
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Coastal Ecology and Environment of State Oceanic Administration, Department of Marine Chemistry, National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China. Electronic address: jbhan@nmemc.org.cn.
authors.forename: Jianbo
authors.initials: J
authors.lastname: Han
authors.affiliation: Key Laboratory of Coastal Ecology and Environment of State Oceanic Administration, Department of Marine Chemistry, National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China. Electronic address: xmwang@nmemc.org.cn.
authors.forename: Xiaomeng
authors.initials: X
authors.lastname: Wang
authors.affiliation: Key Laboratory of Coastal Ecology and Environment of State Oceanic Administration, Department of Marine Chemistry, National Marine Environmental Monitoring Center, Linghe Street 42, Dalian 116023, China. Electronic address: gchan@nmemc.org.cn.
authors.forename: Gengchen
authors.initials: G
authors.lastname: Han
authors.affiliation: Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental and Biological Science and Technology, Dalian University of Technology, Dalian 116024, China. Electronic address: hexin@dlut.edu.cn.
authors.forename: Xin
authors.initials: X
authors.lastname: He
mesh_terms: D002264:Carboxylic Acids / Q000032:analysis; D002681:China; D004784:Environmental Monitoring / Q000379:methods; D005466:Fluorocarbons / Q000032:analysis*; D019015:Geologic Sediments / Q000032:analysis; D009792:Oceans and Seas; D012621:Seasons; D012623:Seawater / Q000032:analysis; D062065:Wastewater / Q000032:analysis; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D002264:Carboxylic Acids; D005466:Fluorocarbons; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Level; PFASs; Seasonal variation; Spatial distribution; The Bohai Sea of China