Feasibility study: using δ18O-PO4 to identify phosphate sources in Dutch surface waters: peat, manure, sewage treatment plant or natural, nutrient-rich groundwater?

Abstract

High nutrient concentrations are in the Netherlands and most other European nations the biggest challenge to comply with the European water quality guidelines. The continuous application of manure and fertilizers by farmers has a strong impact on the phosphate concentrations in surface water systems...