Pesticide concentrations in agricultural storm drainage inlets of a small Swiss catchment.

ABSTRACT: Agricultural pesticides transported to surface waters pose a major risk for aquatic ecosystems. Modelling studies indicate that the inlets of agricultural storm drainage systems can considerably increase the connectivity of surface runoff and pesticides to surface waters. These model results have however not yet been validated with field measurements. In this study, we measured discharge and concentrations of 51 pesticides in four out of 158 storm drainage inlets of a small Swiss agricultural catchment (2.8 km²) and in the receiving stream. For this, we performed an event-triggered sampling during 19 rain events and collected plot-specific pesticide application data. Our results show that agricultural storm drainage inlets strongly influence surface runoff and pesticide transpor

SUBMITTER: Schonenberger UT 

PROVIDER: S-EPMC9200698 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature