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Contamination des milieux aquatiques par les résidus de médicaments : exposition, risques écotoxicologiques, antibiorésistance et leviers d'actions. (French)
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- Author(s): Lecomte, Vivien; Artigas, Joan; Bonnineau, Chloé; Brelot, Elodie; Dagot, Christophe; Hocquet, Didier; Labanowski, Jérôme; Miège, Cécile; Mondamert, Leslie; Martin-Laurent, Fabrice; Pesce, Stéphane
- Source:
Environnement, Risques & Santé; sep/oct2023, Vol. 22 Issue 5, p359-375, 17p- Subject Terms:
- Source:
- Additional Information
- Subject Terms:
- Abstract: This article is the result of work presented at the PharmaAQUA seminar (9–11 March, Annecy, France). It contributes towards knowledge on the pollution of inland aquatic ecosystems by pharmaceutical residues (PR) and antibiotic resistant bacteria (ARB). Pollution of these ecosystems by PR occurs around the world. The main sources are effluents from wastewater treatment plants (WWTP) and the spreading of organic waste products of animal origin (manure and slurry). French rivers are no exception and contain PR in concentrations ranging from nanograms per litre to micrograms per litre, depending on the molecule. This chronic contamination generates risks and ecotoxicological effects to which microbial communities are potentially vulnerable. Their alteration can indirectly affect the biodiversity and functioning of ecosystems. The Pollution Induced Community Tolerance (PICT) approach is a promising tool for diagnosing chemical pollution by PR. Aquatic environments are polluted by antibiotic residues and other chemicals that promote the development of a reservoir of antibiotic resistance genes (ARG). Bacterial biofilms and sediments are trapping areas for ARB and ARG. rRecent studies have shown ARB and ARG accumulate downstream of WWTP. Urban and hospital effluents have specific signatures for ARG. The improvement of wastewater treatment by WWTP, the reduction of discharges at source (through information, greater awareness, and changes in practices), and better control of pharmaceutical production are all levers that are being studied to control this pollution. They require multiple and coordinated efforts from all actors involved in this issue, at the intersection of human health, animal health, and water. [ABSTRACT FROM AUTHOR]
- Abstract: Résumé.: Cet article est issu des travaux présentés au séminaire PharmaAQUA (9 au 11 mars 2022, Annecy). Il contribue à la connaissance de la problématique de la contamination des milieux aquatiques continentaux par les résidus de médicaments (RM) et les bactéries résistantes aux antibiotiques (BRA). La pollution de ces milieux par les RM est d'ampleur mondiale. Les principales sources sont les effluents de stations de traitement des eaux usées (STEU) et l'épandage des produits résiduaires organiques d'origine animale (fumier et lisier). Les cours d'eau français ne sont pas épargnés, avec la présence de RM à des concentrations allant du nanogramme par litre au microgramme par litre selon les molécules. Cette contamination chronique généralisée engendre des risques et des effets écotoxicologiques, auxquels les communautés microbiennes sont potentiellement vulnérables. Leur altération peut indirectement modifier la biodiversité et le fonctionnement des écosystèmes. L'approche PICT (Pollution Induced Community Tolerance) constitue un outil prometteur pour le diagnostic de la pression chimique par les RM. Les milieux aquatiques sont pollués par des résidus d'antibiotiques et d'autres contaminants chimiques, qui créent des conditions favorables à la constitution d'un réservoir de gènes de résistance aux antibiotiques (GRA). Les biofilms bactériens et les sédiments sont des zones de piégeage de BRA et de GRA. Leur étude a notamment révélé un enrichissement en BRA et GRA en aval des STEU. La comparaison des effluents urbains et hospitaliers a montré des signatures spécifiques en termes de GRA. L'amélioration du traitement des eaux usées par les STEU, la réduction des rejets à la source (information, sensibilisation et changements de pratiques) et un meilleur enca-drement de la production des médicaments sont autant de leviers qui sont étudiés pour maîtriser cette pollution. Ils appellent des efforts multiples et coordonnés de l'ensemble des acteurs de cette problématique à l'interface des mondes de la santé humaine, de la santé animale et de l'eau. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of Environnement, Risques & Santé is the property of John Libbey Eurotext Ltd. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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