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Spatial and temporal trends in occurrence of emerging and legacy contaminants in the Lower Columbia River 2008-2010

Science of the Total Environment

By:
, , , and
DOI: 10.1016/j.scitotenv.2013.07.128

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Abstract

The Lower Columbia River in Oregon and Washington, USA, is an important resource for aquatic and terrestrial organisms, agriculture, and commerce. An 86-mile stretch of the river was sampled over a 3 year period in order to determine the spatial and temporal trends in the occurrence and concentration of water-borne organic contaminants. Sampling occurred at 10 sites along this stretch and at 1 site on the Willamette River using the semipermeable membrane device (SPMD) and the polar organic chemical integrative sampler (POCIS) passive samplers. Contaminant profiles followed the predicted trends of lower numbers of detections and associated concentrations in the rural areas to higher numbers and concentrations at the more urbanized sites. Industrial chemicals, plasticizers, and PAHs were present at the highest concentrations. Differences in concentrations between sampling periods were related to the amount of rainfall during the sampling period. In general, water concentrations of wastewater-related contaminants decreased and concentrations of legacy contaminants slightly increased with increasing rainfall amounts.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Spatial and temporal trends in occurrence of emerging and legacy contaminants in the Lower Columbia River 2008-2010
Series title:
Science of the Total Environment
DOI:
10.1016/j.scitotenv.2013.07.128
Volume
484
Year Published:
2014
Language:
English
Publisher:
Elsevier
Contributing office(s):
Columbia Environmental Research Center
Description:
9 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Science of the Total Environment
First page:
322
Last page:
330
Number of Pages:
9
Time Range Start:
2008-01-01
Time Range End:
2010-12-31
Country:
United States
State:
Oregon;Washington
Other Geospatial:
Columbia River