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Advanced Tools Webinar Series Presents: Regulatory Issues and Case Studies of Advanced Tools
Citation:
WILSON, J. T. Advanced Tools Webinar Series Presents: Regulatory Issues and Case Studies of Advanced Tools. Presented at Advanced Tools Webinar Series, Ada, OK, November 12, 2010.
Impact/Purpose:
Graphics for webinar to be presented Nov 12, 2010
Description:
U.S. EPA has released A Guide for Assessing Biodegradation and Source Identification of Organic Ground Water Contaminants using Compound Specific Isotope Analysis (CSIA) [EPA 600/R-08/148 | December 2008 | www.epa.gov/ada]. The Guide provides recommendations for sample collection, sample preservation, and sample analysis; recommendations on QA/QC issues; details on calculations; and a catalogue of expected initial values for the ratios of 13C to 12C in organic compounds such as TCE and PCE. This webinar is an introduction to materials in the Guide. The webinar will briefly review the theory behind isotopic effects, it will explain the units used to characterize the ratio of isotopes, and it will discuss the simple mathematics that can relate the shift in the ratio to the extent of degradation. Then the webinar will discuss important issues related to data quality for analysis of stable isotopes, and will provide recommendations for requirements in Quality Assurance Project Plans and Project Statements of Work. The U.S. Environmental Protection Agency through its Office of Research and Development funded the research described here. It has not been subjected to Agency review and therefore does not necessarily reflect the views of the Agency, and no official endorsement should be inferred. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.