Plant protection products (PPPs) pose a threat to our aquatic ecosystems. Within the framework of the National Surface Water Quality Monitoring Program (NAWA), the cantons and the federal government examine various bodies of water to detect PPP using 3.5-day composite samples. We combined this data with precipitation and discharge data to categorize different entry types of the PPP. The aim of the analysis was to identify factors that lead to the measured peak concentrations of PPP in the bodies of water.
Image: Plant protection products in bodies of water – improved recognition of pollution factors