دورية أكاديمية
Distribution and bioaccumulation of POPs and mercury in the Ga-Selati River (South Africa) and the rivers Gudbrandsdalslågen and Rena (Norway).
| العنوان: | Distribution and bioaccumulation of POPs and mercury in the Ga-Selati River (South Africa) and the rivers Gudbrandsdalslågen and Rena (Norway). |
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| المؤلفون: | Govaerts A; Laboratory of Systemic, Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan, 171 2020 Antwerp, Belgium., Verhaert V; Laboratory of Systemic, Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan, 171 2020 Antwerp, Belgium., Covaci A; Toxicological Centre, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk-Antwerp, Belgium., Jaspers VLB; Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway., Berg OK; Department of Biology, Norwegian University of Science and Technology (NTNU), Trondheim, Norway., Addo-Bediako A; Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa., Jooste A; Department of Biodiversity, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa., Bervoets L; Laboratory of Systemic, Physiological and Ecotoxicological Research, Department of Biology, University of Antwerp, Groenenborgerlaan, 171 2020 Antwerp, Belgium. Electronic address: lieven.bervoets@uantwerpen.be. |
| المصدر: | Environment international [Environ Int] 2018 Dec; Vol. 121 (Pt 2), pp. 1319-1330. Date of Electronic Publication: 2018 Nov 07. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Science Country of Publication: Netherlands NLM ID: 7807270 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1873-6750 (Electronic) Linking ISSN: 01604120 NLM ISO Abbreviation: Environ Int Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Original Publication: Oxford; Elmsford, N. Y., Pergamon Press. |
| مواضيع طبية MeSH: | Environmental Exposure* , Rivers*, Aquatic Organisms/*metabolism , Geologic Sediments/*analysis , Mercury/*analysis , Water Pollutants, Chemical/*analysis, Animals ; Environmental Monitoring ; Fishes/metabolism ; Humans ; Norway ; Organic Chemicals/analysis ; Risk Assessment ; South Africa |
| مستخلص: | Biomagnification of Hg and persistent organic pollutants (POPs: polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), polybrominated diphenyl ethers (PBDEs)) in aquatic food chains can lead to high pollutant concentrations in top predators, including humans. Despite this threat to human health, research concerning bioaccumulation is still underrepresented in the southern hemisphere and in (sub)arctic and (sub)tropical areas, emphasizing the need for research in these locations. In this study, samples of water, sediment and aquatic biota were analyzed to determine concentrations of POPs and total mercury (THg) in the Ga-Selati river (South Africa) and two rivers Rena and Gudbrandsdalslågen in Norway. Trophic magnification factors (TMFs) were determined to evaluate and compare the biomagnification and the threat to human health due to consumption of the fish was assessed. Concentrations of POPs in sediment and biota samples were generally low except for relatively high concentrations of ∑DDX (dichlorodiphenyltrichloroethane and metabolites) in aquatic biota from the Ga-Selati river (ranging from 1.9 to 133 ng/g ww in invertebrates and 1.9 to 5643 ng/g ww in fish). Dissolved THg concentrations were high in the Ga-Selati river (ranging from 0.009 to 0.036 μg/l) but THg concentrations in sediment and biota were low in studied rivers compared to other studies. Biomagnification occurred for THg, several DDT-metabolites and PCB compounds, TN and CN. Biomagnification of p,p'-DDT and THg differed significantly between the two countries, supporting existing patterns found in literature, although more data is needed to attribute these differences to climatic or other factors. Concentrations in fish from the rivers Ga-Selati and Rena were under the threshold levels reported for THg and POPs, but caution should be taken when consuming Northern pike (Esox Lucius) from the subarctic river Gudbrandsdalslågen, to avoid harmful effects due to both elevated THg and PBDE exposure. (Copyright © 2018 Elsevier Ltd. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Bioaccumulation; Hg; Norway; Persistent organic pollutants; South Africa; Trophic magnification factors |
| المشرفين على المادة: | 0 (Organic Chemicals) 0 (Water Pollutants, Chemical) FXS1BY2PGL (Mercury) |
| تواريخ الأحداث: | Date Created: 20181111 Date Completed: 20190404 Latest Revision: 20190404 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1016/j.envint.2018.10.058 |
| PMID: | 30413296 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1873-6750 |
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| DOI: | 10.1016/j.envint.2018.10.058 |