December 1, 2014, 12:30 PM - 2:30 PM, EST (17:30-19:30 GMT)

You may also be interested in the following archive of this seminar:

• December 1, 2014

This is the third session of the Porewater Concentrations and Bioavailability: How You Can Measure Them and Why They Influence Contaminated Sediment Remediation seminar series. This session is titled: Metals and PSDs. NARPM Presents and Risk e-Learning are offering a four-part webinar series to help you understand why, how, and when to measure porewater concentrations and bioavailability as part of contaminated sediment assessment and management. Hosted jointly by the EPA Contaminated Sediments Forum and the National Institute of Environmental Health Science’s Superfund Research Program, this webinar series will also focus on the use of passive sampling devices (PSD) and what they tell us about contaminant bioavailability. Previously held as a course at the National Association for Remedial Project Managers (NARPM) Training Program meeting, the webinar series features experts in the field of porewater and bioavailability and includes lectures and case studies, including practical tips to maximize the utility of porewater and bioavailability measurements. Presenters will explain the basics of chemical fate, transport, and uptake, with a focus on porewater as a key route of exposure and a strong indicator of bioavailability. PSDs are a promising technology for measuring porewater concentrations and assessing bioavailability, particularly for common sediment contaminants such as polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), chlorinated pesticides, and dioxin-like compounds. The webinar series will include information about direct measurements of porewater, such as centrifuging sediment samples or Henry Samplers, which may also be used and are particularly useful for measuring metals.

• Mark Cantwell, EPA Office of Research and Development (cantwell.mark@epa.gov)
  • Presentation Title: Methods for Measuring and Assessing Dissolved Metals in Sediment Porewaters
• Chris Eckley, EPA Region 10 (eckley.chris@epa.gov)
  • Presentation Title: Measurements of Mercury Methylation in Porewater: A Case Study from the Black Butte Mine Superfund Site, OR

• Michael Adam, EPA Office of Superfund Remediation and Technology Innovation (adam.michael@epa.gov)

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