title: Levels and distributions of organophosphate flame retardants and plasticizers in sediment from Taihu Lake, China.
abstract: The concentrations and distribution of seven organophosphate flame retardants and plasticizers (OPs) were investigated in 28 sediment samples collected from Taihu Lake. The analytes were ultrasonically extracted, enriched using solid-phase extraction, and determined by gas chromatography-mass spectrometry. The results indicated that the analytes were all detected in the sediments. The total concentrations of seven OPs ranged from 3.38 to 14.25 µg/kg, and tris (2-chloroiso-propyl) phosphate (TCPP), tris (2-chloroethyl) phosphate (TCEP), and tris (2-butoxyethyl) phosphate (TBEP) were the dominant compounds, with concentrations ranging from<limit of quantification to 2.27 µg/kg, 0.62 to 3.17 µg/kg, and 1.03 to 5.00 µg/kg, respectively. The highest concentration of total assessed OPs (14.25 µg/kg) was found at GH-5, with tris (1,3-dichloro-2-propyl) phosphate (TDCPP) as the main component at the sampling site. This result implied that there is an obvious emission source nearby at Suzhou City; in addition, human activities also play an important role in the concentration of OPs in the sediment.
authors.affiliation: State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China.
authors.forename: Shuxia
authors.initials: S
authors.lastname: Cao
authors.forename: Xiangying
authors.initials: X
authors.lastname: Zeng
authors.forename: Han
authors.initials: H
authors.lastname: Song
authors.forename: Huiru
authors.initials: H
authors.lastname: Li
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Yu
authors.forename: Guoying
authors.initials: G
authors.lastname: Sheng
authors.forename: Jiamo
authors.initials: J
authors.lastname: Fu
mesh_terms: D002681:China; D005411:Flame Retardants / Q000032:analysis*; D008401:Gas Chromatography-Mass Spectrometry; D019015:Geologic Sediments / Q000737:chemistry*; D060106:Lakes / Q000737:chemistry; D010755:Organophosphates / Q000032:analysis*; D009943:Organophosphorus Compounds; D010720:Phosphines; D010968:Plasticizers / Q000032:analysis*; D052616:Solid Phase Extraction; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D005411:Flame Retardants; D010755:Organophosphates; D009943:Organophosphorus Compounds; D010720:Phosphines; D010968:Plasticizers; D014874:Water Pollutants, Chemical; C012085:tris(2,3-dibromopropyl)phosphate; C080938:tris(2-carboxyethyl)phosphine; C016805:tris(1,3-dichloro-2-propyl)phosphate; C013320:tris(2-butoxyethyl) phosphate