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 Abstract

  The Use of Surrogate Compounds as Indicators of PDCC/F Concentrations in Combustor Stack Gases (38 pp, 696 KB) (EPA/600/R-04/024) February 2004

Emissions of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDDs/Fs) from stationary combustion sources are of concern due to their carcinogenicity and endocrine effects.

PCDDs/Fs are typically present only in minute concentrations in combustor stack gases, which makes sampling and analysis of these compounds extremely expensive and time consuming. Direct, real-time measurement of all PCDD/F isomers of concern is not possible using current technology. It is possible, however, to estimate stack concentrations of PCDDs/Fs by measuring other indicator (surrogate) compounds that are present in the stack gases at much higher concentrations. Appropriately selected surrogate compounds would be easier to measure than PCDDs/Fs and can be measured in real-time or near real-time by stack gas monitoring technology that is currently available either commercially or in various stages of development.

This report discusses the various surrogates that can be used to indicate PCDD/F concentrations, how those surrogates can be measured, and a state-of-the-science assessment of availability and effectiveness of analyzers for measuring those compounds.


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Office of Research & Development | National Risk Management Research Laboratory


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