Temporal trends and spatial variations of chlorinated paraffins and olefins in sewage sludge from eight Swiss wastewater treatment plants from 1993 to 2020 | Synapse
March 3, 2026Open Access
Temporal trends and spatial variations of chlorinated paraffins and olefins in sewage sludge from eight Swiss wastewater treatment plants from 1993 to 2020
Key Points
Chlorinated paraffins and olefins in sewage sludge increased significantly from 1993 to 2020.
Highest concentrations observed in urban areas, with a 50% rise since 1993.
Temporal trends assessed using historical pollution data from eight Swiss wastewater treatment plants.
Findings highlight the need for improved environmental monitoring to manage these pollutants.