title: Brominated flame retardants and perfluoroalkyl substances in sediments from the Czech aquatic ecosystem.
abstract: This study reports results of analysis of various groups of halogenated chemicals, including brominated flame retardants (BFRs), such as polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDs), tetrabromobisphenol A (TBBPA) and perfluoroalkyl substances (PFASs) in 31 sediment samples collected in different localities of the Czech Republic. In this survey, identification of potential sources of these compounds was also performed; therefore several sampling sites located in highly industrialized areas were involved. Concentrations of target groups of analytes determined in sediments from several Czech rivers examined within this study decreased in the following order: decabromodiphenyl ether (BDE 209) >>> TBBPA~HBCDs~linear perfluorooctane sulfonate (L-PFOS)>other PBDEs~perfluorinated carboxylic acids (PFCAs)~perfluorooctane sulfonamide (FOSA). When compared the contamination by two monitored groups of halogenated compounds, the total content of ∑BFRs was significantly higher, i.e. in the range from the method quantification limit (MQL) to 528 μg/kg dry weight (dw) (median value 5.68 μg/kg dw), than the total concentration of ∑PFASs, that was in the range from MQL to 25.5 μg/kg dw (median value 1.48 μg/kg dw). The extremely highest content of BFR group (265-528 μg/kg dw) was found in sediments collected in sampling sites on the Labe and Lužická Nisa Rivers, which are located in highly chemical industrialized areas and also in the sample from the locality Lampertice obtained from the sedimentation tank close to the factory processing and storing waste. These concentrations were a little bit higher or comparable to those found in similar highly industrialized areas worldwide.
authors.affiliation: Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Institute of Chemical Technology Prague, Technicka 3, 166 28 Prague 6, Czech Republic.
authors.forename: Veronika
authors.initials: V
authors.lastname: Hloušková
authors.affiliation: Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Institute of Chemical Technology Prague, Technicka 3, 166 28 Prague 6, Czech Republic.
authors.forename: Darina
authors.initials: D
authors.lastname: Lanková
authors.affiliation: Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Institute of Chemical Technology Prague, Technicka 3, 166 28 Prague 6, Czech Republic.
authors.forename: Kamila
authors.initials: K
authors.lastname: Kalachová
authors.affiliation: Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Institute of Chemical Technology Prague, Technicka 3, 166 28 Prague 6, Czech Republic.
authors.forename: Petra
authors.initials: P
authors.lastname: Hrádková
authors.affiliation: Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Institute of Chemical Technology Prague, Technicka 3, 166 28 Prague 6, Czech Republic.
authors.forename: Jan
authors.initials: J
authors.lastname: Poustka
authors.affiliation: Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Institute of Chemical Technology Prague, Technicka 3, 166 28 Prague 6, Czech Republic.
authors.forename: Jana
authors.initials: J
authors.lastname: Hajšlová
authors.affiliation: Faculty of Food and Biochemical Technology, Department of Food Analysis and Nutrition, Institute of Chemical Technology Prague, Technicka 3, 166 28 Prague 6, Czech Republic. Electronic address: jana.pulkrabova@vscht.cz.
authors.forename: Jana
authors.initials: J
authors.lastname: Pulkrabová
mesh_terms: D017738:Alkanesulfonic Acids / Q000032:analysis; D018153:Czech Republic; D017753:Ecosystem; D004784:Environmental Monitoring; D005411:Flame Retardants / Q000032:analysis*; D005466:Fluorocarbons / Q000032:analysis*; D019015:Geologic Sediments / Q000737:chemistry; D055768:Halogenated Diphenyl Ethers / Q000032:analysis; D006842:Hydrocarbons, Brominated / Q000032:analysis; D011075:Polybrominated Biphenyls / Q000032:analysis; D045483:Rivers / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D017738:Alkanesulfonic Acids; D005411:Flame Retardants; D005466:Fluorocarbons; D055768:Halogenated Diphenyl Ethers; D006842:Hydrocarbons, Brominated; D011075:Polybrominated Biphenyls; D014874:Water Pollutants, Chemical; C089796:hexabromocyclododecane; C073608:perfluorooctane; C076994:perfluorooctane sulfonic acid; C020806:tetrabromobisphenol A; C010902:decabromobiphenyl ether
keywords: Environment; HBCD; PBDE; PFAS; Sediment; TBBPA