دورية أكاديمية
Comprehensive determination of polychlorinated biphenyls and brominated flame retardants in surface sediment samples from Hanoi urban area, Vietnam: Contamination status, accumulation profiles, and potential ecological risks.
| العنوان: | Comprehensive determination of polychlorinated biphenyls and brominated flame retardants in surface sediment samples from Hanoi urban area, Vietnam: Contamination status, accumulation profiles, and potential ecological risks. |
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| المؤلفون: | Hoang AQ; Center of Advanced Technology for the Environment, Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, 790-8566, Japan; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, 10000, Viet Nam. Electronic address: hoangquocanh1990@gmail.com., Takahashi S; Center of Advanced Technology for the Environment, Graduate School of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, 790-8566, Japan., Da Le N; Laboratory of Environmental Chemistry, Institute of Natural Product Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 10000, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 10000, Viet Nam., Duong TT; Institute of Environmental Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 10000, Viet Nam., Huong Pham TM; Hanoi University of Industry, 298 Cau Dien, Hanoi, 10000, Viet Nam., Mai Pham TN; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, 10000, Viet Nam., Huong Nguyen TA; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, 10000, Viet Nam., Tran TM; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, 10000, Viet Nam., Tu MB; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hanoi, 10000, Viet Nam., Quynh Le TP; Laboratory of Environmental Chemistry, Institute of Natural Product Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 10000, Viet Nam; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, 10000, Viet Nam. Electronic address: quynhltp@gmail.com. |
| المصدر: | Environmental research [Environ Res] 2021 Jun; Vol. 197, pp. 111158. Date of Electronic Publication: 2021 Apr 20. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0147621 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1096-0953 (Electronic) Linking ISSN: 00139351 NLM ISO Abbreviation: Environ Res Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: <2000- > : Amsterdam : Elsevier Original Publication: New York, Academic Press. |
| مواضيع طبية MeSH: | Flame Retardants*/analysis , Polychlorinated Biphenyls*, Environmental Monitoring ; Halogenated Diphenyl Ethers/analysis ; Vietnam |
| مستخلص: | Comprehensive and updated information about polychlorinated biphenyls (PCBs) and brominated flame retardants (BFRs) in surface sediments from Hanoi, the capital city of Vietnam, is rather scarce. In this study, concentrations and profiles of 209 PCBs, 41 polybrominated diphenyl ethers (PBDEs), 2,2',4,4',5,5'-hexabromobiphenyl (BB-153), hexabromocyclododecane (HBCD), pentabromoethylbenzene (PBEB), 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), and decabromodiphenyl ethane (DBDPE) were determined in sediment samples collected from the Red River and some inner-city rivers of Hanoi. Concentrations (ng/g dry weight, median and range) of pollutants decreased in the order: DBDPE (28; not detected ND - 59) ≈ PCBs (27; 1.7-50) > PBDEs (23; 0.20-61) > HBCD (1.2; ND - 5.2) > BTBPE (0.46; ND - 3.6) > BB-153 (0.004; ND - 0.014) > PBEB (ND). Pollutant levels in the inner-city river sediments were about one to two orders of magnitude higher than those measured in the Red River main stream sediments. Tri-to hexa-CBs are major homologs but detailed profiles vary between individual samples, reflecting source and/or seasonal variations. CB-11 and CB-209 were found at higher proportions in sediments than in technical PCB mixtures, suggesting their novel sources from pigments. Deca-BDE and DBDPE are the most predominant BFRs with an increasing trend predicted for DBDPE. A preliminary ecological risk assessment was conducted for these pollutants in sediments. Total PCBs and deca-BDE in a few inner-city river sediments may exhibit adverse effects on benthic organisms, but no serious risk was estimated in general. (Copyright © 2021 Elsevier Inc. All rights reserved.) |
| فهرسة مساهمة: | Keywords: BFRs; Developing country; PCBs; Sediment; Urban rivers |
| المشرفين على المادة: | 0 (Flame Retardants) 0 (Halogenated Diphenyl Ethers) DFC2HB4I0K (Polychlorinated Biphenyls) |
| تواريخ الأحداث: | Date Created: 20210422 Date Completed: 20210630 Latest Revision: 20210630 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1016/j.envres.2021.111158 |
| PMID: | 33887272 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1096-0953 |
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| DOI: | 10.1016/j.envres.2021.111158 |