We investigated PCB contamination at the Ashtabula River Area of Concern (AOC) following remedial dredging using araneid and tetragnathid spiders. PCB concentrations remain elevated in the AOC compared to reference conditions. Patterns of contamination were strikingly similar between taxa, but were higher in tetragnathids at the most contaminated sites. Spider PCB homolog distributions identified two PCB sources to the AOC. Based on these findings, we recommend situations where these taxa can be used singularly, in concert, or combined into a composite “spider” sample to assess environmental contamination.
|Publication Subtype||Journal Article|
|Title||Riparian spiders indicate the magnitude and sources of polychlorinated biphenyl (PCB) contamination at a large contaminated sediment site|
|Series title||Environmental Toxicology and Chemistry|
|Publisher||Society of Environmental Toxicology and Chemistry|
|Contributing office(s)||Fort Collins Science Center|
|Google Analytics Metrics||Metrics page|