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Spatial and temporal variation of polychlorinated biphenyl (PCB) in precipitation in southern Sweden.

Backe, Cecilia LU ; Larsson, Per LU and Agrell, Cecilia LU (2002) In Science of the Total Environment 285(1-3). p.117-132
Abstract
Spatial and temporal variations in polychlorinated biphenyl (PCB) concentrations were studied in precipitation at 11 sampling-sites over a period of 1 year and compared with PCB concentrations in the air. The study was carried out in a region of southern Sweden approximately 11 000 km2 in area. The PCB concentration in precipitation ranged between 1.18 and 81.4 ng l(-1). Two of the sampling sites showed concentrations that were approximately 30 times higher than at the rest of the sites. The variation in concentration between sites may be explained by location as well as by differences in weather conditions and particle content in the air. Wind direction played an important role for PCB concentration in precipitation in coastal areas,... (More)
Spatial and temporal variations in polychlorinated biphenyl (PCB) concentrations were studied in precipitation at 11 sampling-sites over a period of 1 year and compared with PCB concentrations in the air. The study was carried out in a region of southern Sweden approximately 11 000 km2 in area. The PCB concentration in precipitation ranged between 1.18 and 81.4 ng l(-1). Two of the sampling sites showed concentrations that were approximately 30 times higher than at the rest of the sites. The variation in concentration between sites may be explained by location as well as by differences in weather conditions and particle content in the air. Wind direction played an important role for PCB concentration in precipitation in coastal areas, while at the inland sites this variable seemed to have a minor influence. We found no seasonal trends in PCB concentration in precipitation or any dependence on air temperature. To examine the intensity of precipitation scavenging, the total washout ratios (Wt) were calculated. There was a large variation in Wt over time, and the highest ratios were observed at the two sites where PCB concentration in the air was high. Furthermore, high concentrations of PCB in precipitation correlated with a high-chlorinated pattern, as shown by principal component analysis. For most of the sites there was a significantly negative relationship between PCB concentration and rain volume. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
*Rain, Polychlorinated Biphenyls/*analysis, Environmental Pollutants/*analysis, Environmental Monitoring, Environmental/*analysis, Air Pollutants, Support, Sweden, Time Factors, Non-U.S. Gov't
in
Science of the Total Environment
volume
285
issue
1-3
pages
117 - 132
publisher
Elsevier
external identifiers
  • wos:000173972900011
  • pmid:11874035
  • scopus:0037148724
ISSN
1879-1026
DOI
10.1016/S0048-9697(01)00901-9
language
English
LU publication?
yes
id
28078a72-f3d3-4505-9d74-cf43a6cfe09a (old id 106520)
date added to LUP
2007-06-27 07:50:01
date last changed
2017-01-01 04:48:00
@article{28078a72-f3d3-4505-9d74-cf43a6cfe09a,
  abstract     = {Spatial and temporal variations in polychlorinated biphenyl (PCB) concentrations were studied in precipitation at 11 sampling-sites over a period of 1 year and compared with PCB concentrations in the air. The study was carried out in a region of southern Sweden approximately 11 000 km2 in area. The PCB concentration in precipitation ranged between 1.18 and 81.4 ng l(-1). Two of the sampling sites showed concentrations that were approximately 30 times higher than at the rest of the sites. The variation in concentration between sites may be explained by location as well as by differences in weather conditions and particle content in the air. Wind direction played an important role for PCB concentration in precipitation in coastal areas, while at the inland sites this variable seemed to have a minor influence. We found no seasonal trends in PCB concentration in precipitation or any dependence on air temperature. To examine the intensity of precipitation scavenging, the total washout ratios (Wt) were calculated. There was a large variation in Wt over time, and the highest ratios were observed at the two sites where PCB concentration in the air was high. Furthermore, high concentrations of PCB in precipitation correlated with a high-chlorinated pattern, as shown by principal component analysis. For most of the sites there was a significantly negative relationship between PCB concentration and rain volume.},
  author       = {Backe, Cecilia and Larsson, Per and Agrell, Cecilia},
  issn         = {1879-1026},
  keyword      = {*Rain,Polychlorinated Biphenyls/*analysis,Environmental Pollutants/*analysis,Environmental Monitoring,Environmental/*analysis,Air Pollutants,Support,Sweden,Time Factors,Non-U.S. Gov't},
  language     = {eng},
  number       = {1-3},
  pages        = {117--132},
  publisher    = {Elsevier},
  series       = {Science of the Total Environment},
  title        = {Spatial and temporal variation of polychlorinated biphenyl (PCB) in precipitation in southern Sweden.},
  url          = {http://dx.doi.org/10.1016/S0048-9697(01)00901-9},
  volume       = {285},
  year         = {2002},
}