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Charlotte Sparrenbom

Charlotte Sparrenbom

Universitetslektor

Charlotte Sparrenbom

On the scope and management of pesticide pollution of Swedish groundwater resources: The Scanian example

Författare

  • Maria Åkesson
  • Charlotte Sparrenbom
  • Peter Dahlqvist
  • Stephen Fraser

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 Human Environment

Volym

44

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Geology

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0044-7447