Occurrence et spéciation des sous-produits de chloration dans les eaux marines et les sédiments d'une baie semi-fermée exposée à des effluents industriels chlorés
| Autor: | Karine Lebaron, Laurent Vassalo, Carine Demelas, Julien Dron, Gautier Revenko, Tarek Manasfi, Maxime Verlande, Jean-Luc Boudenne, Etienne Quivet |
|---|---|
| Přispěvatelé: | Laboratoire Chimie de l'environnement (LCE), Centre National de la Recherche Scientifique (CNRS)-Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC), Institut Ecocitoyen pour la Connaissance des Pollutions (FRANCE), ANR, ANR-16-CE34-0009,FOS-SEA,Evalution du risque environnemental lié à la maîtrise du biofouling en zone littorale méditerranéenne(2016), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Ecocitoyen pour la Connaissance des Pollutions [Fos-sur-Mer] |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Tribromoacetic acid
Geologic Sediments Haloacetic acids 010504 meteorology & atmospheric sciences Context (language use) 010501 environmental sciences Chlorination byproducts 01 natural sciences chemistry.chemical_compound Marine sediments [CHIM.ANAL]Chemical Sciences/Analytical chemistry Hydrocarbons Chlorinated medicine Cooling water Seawater 14. Life underwater Effluent 0105 earth and related environmental sciences Seawater pollution Public Health Environmental and Occupational Health Contamination Disinfection byproducts 6. Clean water Industrial chlorinated effluents chemistry 13. Climate action Environmental chemistry [SDE]Environmental Sciences Environmental science Bromoform Bay medicine.drug |
| Zdroj: | International Journal of Hygiene and Environmental Health International Journal of Hygiene and Environmental Health, Elsevier, 2019, 222 (1), pp.1-8. ⟨10.1016/j.ijheh.2018.06.008⟩ International Journal of Hygiene and Environmental Health, 2019, 222 (1), pp.1-8. ⟨10.1016/j.ijheh.2018.06.008⟩ |
| ISSN: | 1438-4639 |
| Popis: | International audience; Chlorination of seawater is one of the most effective technologies for industrial biofouling control. However, chlorination leads to the formation of halogenated chlorination byproducts (CBPs) associated with potential risks to environmental and human health. The present study investigated the occurrence and distribution of CBPs in the Gulf of Fos, a semi-enclosed bay where chlorinated effluents of multiple industrial plants are discharged. Seawater samples (surface and bottom) were collected at 24 sampling stations, with some near industrial outlets and others dispersed throughout the bay. Sediment samples were also collected at 10 sampling stations. Physicochemical parameters including water temperature, pH, salinity, bromide content, and free and total residual oxidant were determined. Several chemical classes of CBPs including trihalomethanes, haloacetic acids, haloacetonitriles, trihaloacetaldehydes, and halophenols were analyzed. Bromoform was the most abundant CBP in seawater, and it was detected at most of the sampling stations of the bay with highest concentrations occurring near the industrial effluent outlets. Dibromoacetic acid was the second most abundant CBP at most of the sites followed by dibromoacetonitrile. Other detected CBPs included tribromoacetic acid, bromochloroacetonitrile, and bromal hydrate. To our knowledge, the concentration of the latter CBP was reported here for the first time in the context of industrial seawater chlorination. In sediments, two bromine-containing halophenols (2-chloro-4-bromophenol and 2,4,6-tribromophenol) were detected at two sampling stations. Ecotoxicological assays and risk assessment studies based on the detected environmental concentrations are warranted to elucidate the impacts of marine CBP contamination. |
| Databáze: | OpenAIRE |
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