دورية أكاديمية
Distinct dynamics in mountain watersheds: Exploring mercury and microplastic pollution-Unraveling the influence of atmospheric deposition, human activities, and hydrology.
| العنوان: | Distinct dynamics in mountain watersheds: Exploring mercury and microplastic pollution-Unraveling the influence of atmospheric deposition, human activities, and hydrology. |
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| المؤلفون: | Margenat H; Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France. Electronic address: henar.margenat-hervas@univ-tlse3.fr., Guasch H; Centre d'Estudis Avançats de Blanes, CSIC, Blanes, Spain., Le Roux G; Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France., Vila-Gispert A; GRECO, Institute of Aquatic Ecology, Universitat de Girona, Girona, Spain., Cornejo D; Centre d'Estudis Avançats de Blanes, CSIC, Blanes, Spain., Chouache L; Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France., Martí E; Centre d'Estudis Avançats de Blanes, CSIC, Blanes, Spain., Sonke JE; Géosciences Environnement Toulouse, CNRS/-IRD/Université Paul Sabatier, Toulouse, France., El Zrelli RB; SADEF, Agronomy & Environment, 30 Rue de la Station, 68700, Aspach-Le-Bas, France., Laffont L; Géosciences Environnement Toulouse, CNRS/-IRD/Université Paul Sabatier, Toulouse, France., Hansson SV; Laboratoire écologie fonctionnelle et environnement (LEFE), Université Paul Sabatier, CNRS, Toulouse, France. |
| المصدر: | Environmental research [Environ Res] 2024 Feb 01; Vol. 242, pp. 117760. Date of Electronic Publication: 2023 Nov 26. |
| نوع المنشور: | Journal Article |
| 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: | Mercury*/analysis , Water Pollutants, Chemical*/analysis, Animals ; Humans ; Microplastics ; Plastics ; Ecosystem ; Hydrology ; Environmental Biomarkers ; Trout ; Lakes ; Human Activities ; Environmental Monitoring/methods |
| مستخلص: | The intensification of human activities all around the globe has led to the spread of micropollutants in high-mountain freshwater environments. We therefore aimed to assess the geospatial distribution and determine the potential sources of (total-) mercury (THg) and microplastics (MPs) in mountain freshwater ecosystems. To do so, we analyzed THg and MP concentrations in brown trout, biofilm, and sediments from lotic and lentic ecosystems in the Pyrenees - all subjected to different types of human pressure. Additionally, we assessed the potential impacts of these pollutants on fish, and explored the bioindication capacity of brown trout (Salmo trutta fario) and biofilm regarding THg and MP pollution. For the first time, we measured concentrations of MPs trapped in the matrix of freshwater biofilm. Our results suggest that THg in the Pyrenees might be explained by both legacy (regional) and distant sources, in combination with environmental characteristics such as the presence of peatlands or streamwater physicochemistry, while MPs in fish are linked to recent local pollution sources such as single-use plastics. In contrast, MPs in biofilm matrix and sediments indicate a combination of distant (i.e., atmospheric deposition) and recent local pollution sources. Moreover, hydrodynamics and plastic density likely control MP distribution in rivers. Based on Fulton's condition factor, we also found that higher THg concentrations caused a negative impact on fish health (K < 1), while no impact of MPs could be seen. Therefore, we suggest that brown trout and biofilm can serve as bioindicators of atmospheric deposition of THg in high-altitude lakes and that biofilm is a reliable bioindicator to assess MP pollution in remote environments. Brown trout may also act as a bioindicator of MP pollution, but only efficiently in more polluted areas. Competing Interests: Declaration of competing interest The authors declare no competing financial interest, nor any conflict of interest. (Copyright © 2023 Elsevier Inc. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Biofilm; Brown trout; Long-range atmospheric transport; Mercury; Microplastics; Tourism |
| المشرفين على المادة: | FXS1BY2PGL (Mercury) 0 (Microplastics) 0 (Plastics) 0 (Environmental Biomarkers) 0 (Water Pollutants, Chemical) |
| تواريخ الأحداث: | Date Created: 20231128 Date Completed: 20240122 Latest Revision: 20240122 |
| رمز التحديث: | 20240122 |
| DOI: | 10.1016/j.envres.2023.117760 |
| PMID: | 38016499 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1096-0953 |
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| DOI: | 10.1016/j.envres.2023.117760 |