Development and validation of a new method for predicting spatial and temporal concentration dynamics of active pharmaceutical ingredients in a lake receiving wastewater effluents.

Human consumption of pharmaceuticals leads to continuous emissions of active pharmaceutical ingredients (APIs) to the aquatic environment, primarily via wastewater treatment plants (WWTPs). However, temporal and spatial patterns of environmental API concentrations are challenging to assess using conventional chemical measurements. Chemical risk assessments are, consequently, typically based on low-resolution data and often overlook API concentrations of environmental concern.

Modelling PFAS transport in Lake Ekoln: Implications for drinking water safety in the stockholm region.

Per- and polyfluoroalkyl substances (PFAS) are found frequently in both groundwater and surface water sources across Sweden posing challenges to drinking water supply. Lake Ekoln is located south of Uppsala and is the basin of Lake Mälaren; Lake Mälaren is the third largest lake in Sweden and is the drinking water source for more than two million people. The aim of this study was to simulate the fate and transport of PFAS in Lake Ekoln during the period 2017-2020 using three-dimensional hydrodynamic modelling.