S26

Emerging contaminants and legacy pollutants in freshwater ecosystems
Convener: Stefan Krause | Co-Conveners: Alena Bartosova, Anne Jaffrezic, Françoise Elbaz-Poulichet

Human interaction with the water cycles is affecting surface water and groundwater quality across the globe. The widespread pollution of water resources is critically affecting human health and wellbeing, as well as negatively impacting ecosystem functioning and services, infringing on the achievement of several UN Sustainable Development Goals, most of all SDG6. Despite growing efforts internationally to regulate and reduce water pollution, including improved river basin management, advances in sustainable agricultural practice and implementation of polluter pays principles, water quality in surface water and groundwater bodies has failed to reach sustainable standards in most countries. One reason for this is that interventions in water quality management usually target one type of contaminants and pollution sources, despite increasing awareness and understanding of the complexity of water pollution challenges that see interacting diffuse and point source pollution with legacy and emerging contaminants interacting in their impact on affected ecosystems and people.
This session solicits presentations that focus on:
• emerging (e.g. pharmaceuticals, pathogens, microplastics) and legacy (e.g. nitrate, chlorinated solvents, heavy metals) pollutants in surface water and groundwater;
• interacting diffuse and point source pollutants;
• integrated management of co-existing / mixing contaminants;
• model-based and experimental analysis of multi-contaminant reactive transport and impacts;
• impacts of multi-stressor interactions between water pollution and other drivers such as climate change.