
Charlotte Sparrenbom
Universitetslektor

On the scope and management of pesticide pollution of Swedish groundwater resources: The Scanian example
Författare
Summary, in English
Twenty-three south-Swedish public supply wells were studied to assess pesticide pollution of regional groundwater resources. Relations between pesticide occurrence, hydrogeology, and land use were analyzed using Kohonen's Self-Organizing Maps approach. Pesticides are demonstrated to be substantially present in regional groundwater, with detections in 18 wells. Concentrations above the drinking water threshold are confirmed for nine wells. Observations indicate considerable urban influence, and lagged effects of past, less restricted use. Modern, oxic waters from shallow, unconfined, unconsolidated or fracture-type bedrock aquifers appear particularly vulnerable. Least affected waters appear primarily associated with deeper wells, anoxic conditions, and more confined sediment aquifers lacking urban influence. Comprehensive, standardized monitoring of pesticides in groundwater need to be implemented nationwide to enable sound assessments of pollution status and trends, and to develop sound groundwater management plans in accordance with the Water Framework Directive. Further, existing water protection areas and associated regulations need to be reassessed.
Avdelning/ar
- Kvartärgeologi
Publiceringsår
2015
Språk
Engelska
Sidor
226-238
Publikation/Tidskrift/Serie
Ambio: a Journal of the Human Environment
Volym
44
Issue
3
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Oceanography, Hydrology, Water Resources
Aktiv
Published
ISBN/ISSN/Övrigt
- ISSN: 0044-7447