Towards the implementation of Pollution Induced Community Tolerance (PICT) approaches in water regulatory frameworks: Developping standard procedures for the sediment compartment - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2017

Towards the implementation of Pollution Induced Community Tolerance (PICT) approaches in water regulatory frameworks: Developping standard procedures for the sediment compartment

Vers la mise en œuvre opérationnelle des approches PICT dans un contexte réglementaire du suivi de la qualité des milieux aquatiques et des sédiments

Résumé

Assessing the ecological effects of pollutants is an important aspect of regulations dealing with the sustainable management of water resources. In this context, scientists and regulators face the challenge of going beyond the estimation of pollutant concentrations to take into account the ecotoxicological effects on exposed aquatic communities. Among microbial ecotoxicological approaches, the pollution induced community tolerance (PICT) concept has been proven to be a suitable biomonitoring tool for in situ assessmentof either the response of aquatic microbial communities to toxicant exposure or of their recovery following the improvement of water chemical quality. The PICT is a powerful microbial metric to better link the assessment of ecological and chemical status of ecosystems by providing causal analysis in effect-based monitoring of impacted field sites4. However, prior its implementation in regulatory frameworks, further work is required to standardize PICT measurement and define baseline tolerance levels at large geographical scales. In this context, we will present the first results of the application of PICT approaches in the sediment compartment (with copper as model compound). We will specifically focus on both the development of standardized protocols (from sampling to dose-response modeling) and on the evaluation and control of potential confounding factors to make measurements comparable in space and time by considering robust reference conditions.
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Dates et versions

hal-02606719 , version 1 (16-05-2020)

Identifiants

Citer

Stéphane Pesce, A. Charton, A. Dabrin, E. Lyautey, Ayanleh Mahamoud Ahmed, et al.. Towards the implementation of Pollution Induced Community Tolerance (PICT) approaches in water regulatory frameworks: Developping standard procedures for the sediment compartment. First International Conference on Microbial Ecotoxicology, EcotoxicoMic, Nov 2017, Lyon, France. pp.28. ⟨hal-02606719⟩
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