کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6331387 | 1619793 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Brominated flame retardants and perfluoroalkyl substances in sediments from the Czech aquatic ecosystem
ترجمه فارسی عنوان
بازدارنده های شعله برومند و مواد پرفروفیالکلی در رسوبات اکوسیستم آبزی
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
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) â 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 â 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 â 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Science of The Total Environment - Volumes 470â471, 1 February 2014, Pages 407-416
Journal: Science of The Total Environment - Volumes 470â471, 1 February 2014, Pages 407-416
نویسندگان
Veronika HlouÅ¡ková, Darina Lanková, Kamila Kalachová, Petra Hrádková, Jan Poustka, Jana HajÅ¡lová, Jana Pulkrabová,