Pollutants traced faster in groundwater
Published: 16 October 2014
Precise picture of water quality
Current analysis techniques fail to detect extremely low concentrations of substances. Concentrating compounds by using passive samplers makes this possible and establishes a better picture of water quality.
The passive samplers will consist of sheets of special material that are suspended in the water and continuously absorb substances from the water. The substances are concentrated on the sheets, making it possible to measure extremely low concentrations.
Sampler in observation wells
The samplers have already been used successfully, but only in surface water so far. Deltares is now going to develop, for the provincial authority of North Brabant, an adapted sampler that can be suspended in observation wells to monitor the groundwater. Good-quality groundwater is important for the provincial authority because it is used for drinking water.
Study in Deltares Environmental Laboratory
Over the coming months, the Deltares Environment Laboratory in Utrecht will develop and test the new samplers, and get them ready for use in the field. The samplers will be made from a material that primarily bonds pesticides and pharmaceuticals. During the course of 2015, they will be further tested during field trials in North Brabant.