Impact des rejets de médicaments sur le milieu récepteur : résultats des projets Sipibel et Irmise

Abstract : Chemical water pollution is more and more studied and documented. Among these pollutants, drugs are special contaminants, due their very low concentrations in the environment and the potential presence of metabolites. Although their behavior in wastewater treatment plants (WWTP) is well known, many fewer studies are devoted to their fate in the receiving environment. Within the framework of the Sipibel and Irmise projects, this article presents the results of a two years regular monitoring of twelve pharmaceutical residues, from treatment plant discharges, including one from a hospital, to groundwater intended for drinking water production. Thanks to the use of advanced analytical techniques, limits of quantification below 10 ng/L, consistent with ultra-traces detection, were achieved. Eight molecules, quantified in WWTP discharges at μg/L levels, were also detected in the receiving environment, which is the Arve River, in concentrations between the ng/L and 100 ng/L for acetaminophen. Significant qualitative differences were observed between the hospital treatment discharge and domestic treated waters, due to its high proportion of antibiotics. But, in terms of mass flows, the hospital contribution appeared relatively low compared to domestic discharges. Three substances, among the eight, were also quantified in groundwater, particularly sulfamethoxazole, at the order of 2 ng/L. This substance is very resistant to water treatments, including those made for drinking water product ion and therefore may be a good anthropogenic indicator.
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Submitted on : Tuesday, August 23, 2016 - 3:57:47 PM
Last modification on : Thursday, February 8, 2018 - 11:10:19 AM

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Laure Wiest, Robert Baudot, Emmanuelle Vulliet. Impact des rejets de médicaments sur le milieu récepteur : résultats des projets Sipibel et Irmise. Techniques Sciences Méthodes , ASTEE/EDP Sciences, 2016, pp.12-21. ⟨10.1051/tsm/201606012 ⟩. ⟨hal-01355563⟩

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