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U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response

Office of Solid Waste and Emergency Response, June 2015

Dr. Odencrantz is cited as authority on page 92 in the June 2015 Final USEPA Guidance Document on Vapor Intrusion Sources to Indoor Air. Notable quotes from page 92 are “Although passive (diffusion) samplers have been less commonly used to quantify indoor air concentrations, their use may grow as a result of recent demonstrations that they can yield results comparable to those obtained using evacuated canisters (EPA-Region 9 2010; EPA 2012f; Odencrantz et al. 2009; Odencrantz et al. 2008).” and “Passive samplers are also capable of being deployed for longer durations than evacuated canisters, thereby providing a more economic means of obtaining average indoor air concentrations over longer periods of exposure.”

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