title: Dechloranes in a river in northeastern China: spatial trends in multi-matrices and bioaccumulation in fish (Enchelyopus elongatus).
abstract: Dechloranes (Decs), including Dechlorane Plus (DP) and Dechlorane (Dec) 602, 603, 604, are used as flame retardants. Fifty four samples were collected in a river in northeastern China and analyzed for Decs by gas chromatography/mass spectrometry. The average concentrations of total DP (syn- and anti-) in water, sediment, air, reed (Phragmites australis), and fish (E. elongatus) were 0.30±0.24 (mean±SD) ng L(-1), 1.3±0.69 ng g(-1) dry weight (dw), 0.25±0.18 ng m(-3), 0.63±0.18 ng g(-1) wet weight (ww), and 29±20 ng g(-1) lipid weight (lw), respectively. While Dec 602 and Dec 603 were detected in most of sediment and fish samples, no Dec 604 was found in any of the investigated environmental matrices. The mean ratio of syn-DP to total DP (fsyn) in water, sediment, reed, and fish were 0.28, 0.25, 0.27 and 0.47, suggesting depletion in abiota and enrichment in biota for syn-DP. It was found that biota-sediment accumulation factor (BSAF) was 4.7 for Dec 602, 0.88 for syn-DP, and 0.33 for anti-DP.
authors.affiliation: International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), Dalian Maritime University, Dalian, PR China.
authors.forename: Luo
authors.initials: L
authors.lastname: Wang
authors.forename: Hongliang
authors.initials: H
authors.lastname: Jia
authors.forename: Xianjie
authors.initials: X
authors.lastname: Liu
authors.forename: Meng
authors.initials: M
authors.lastname: Yang
authors.forename: Wenjun
authors.initials: W
authors.lastname: Hong
authors.forename: Yeqing
authors.initials: Y
authors.lastname: Sun
authors.forename: Yushan
authors.initials: Y
authors.lastname: Su
authors.forename: Hong
authors.initials: H
authors.lastname: Qi
authors.forename: Weiwei
authors.initials: W
authors.lastname: Song
authors.forename: Jun
authors.initials: J
authors.lastname: Lin
authors.forename: Yi-Fan
authors.initials: YF
authors.lastname: Li
mesh_terms: D000388:Air / Q000032:analysis; D000818:Animals; D002681:China; D004784:Environmental Monitoring; D005399:Fishes / Q000378:metabolism*; D005411:Flame Retardants / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry; D019015:Geologic Sediments / Q000737:chemistry; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D011083:Polycyclic Compounds / Q000032:analysis; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D005411:Flame Retardants; D006843:Hydrocarbons, Chlorinated; D011083:Polycyclic Compounds; D014874:Water Pollutants, Chemical; C556733:dechlorane 602; C556736:dechlorane 603; C556738:dechlorane 604