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

Åkesson, Maria LU ; Sparrenbom, Charlotte LU ; Dahlqvist, Peter and Fraser, Stephen (2015) In Ambio 44(3). p.226-238
Abstract
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... (More)
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. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Ambio
volume
44
issue
3
pages
226 - 238
publisher
Springer
external identifiers
  • pmid:25168463
  • wos:000351293600007
  • scopus:84924761942
ISSN
0044-7447
DOI
10.1007/s13280-014-0548-1
language
English
LU publication?
yes
id
78cec3d7-315c-4afb-b6a4-721c9702676e (old id 4618200)
date added to LUP
2014-09-10 15:24:51
date last changed
2017-06-18 04:00:23
@article{78cec3d7-315c-4afb-b6a4-721c9702676e,
  abstract     = {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.},
  author       = {Åkesson, Maria and Sparrenbom, Charlotte and Dahlqvist, Peter and Fraser, Stephen},
  issn         = {0044-7447},
  language     = {eng},
  number       = {3},
  pages        = {226--238},
  publisher    = {Springer},
  series       = {Ambio},
  title        = {On the scope and management of pesticide pollution of Swedish groundwater resources: The Scanian example},
  url          = {http://dx.doi.org/10.1007/s13280-014-0548-1},
  volume       = {44},
  year         = {2015},
}