Passive PE Sampling in Support of In Situ Remediation of Contaminated Sediments

Abstract

Our overarching goal was to show PE passive sampling is suited to assessing contaminated sediment sites. Hence, we sought to demonstrate: (a) PE effectively evaluates porewater concentrations of contaminants, (b) PE can delineate the horizontal and vertical extent of contamination, (c) PE is suited for long term monitoring, and (d) the PE passive sampling approach is commercially viable. Laboratory testing showed the PE samplers measured pore waters more accurately than the common commercial practice of using sediment concentrations. PE sampling readily revealed the distribution of sediment contamination by PCBs at the demonstration site. PE samplers showed the site had pg/L levels of individual PCBs in pore waters and bottom waters. Sand cap data indicated no upward PCB fluxes through those caps. Finally, QA/QC, sensitivity, ease of use, and cost metrics all supported the conclusion that PE passive sampling is commercially viable.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2015
Accession Number
AD1002553

Entities

People

  • Kevin Palaia
  • Philip Gschwend

Tags

Communities of Interest

  • Biomedical
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aromatic Hydrocarbons
  • Bottom Waters
  • Chemical Analysis
  • Chemical Synthesis
  • Chemistry
  • Chlorides
  • Contamination
  • Cost Analysis
  • Cyclic Hydrocarbons
  • Environment
  • Environmental Pollutants
  • Environmental Protection
  • Environmental Restoration And Remediation
  • Gas Chromatography
  • Gases
  • Mass Spectrometry
  • Organic Compounds

Fields of Study

  • Environmental science

Readers

  • Groundwater Contamination Remediation.
  • Military Science and Technology Research and Modernization.