Abstract

Abstract Because of the extreme toxicity of certain polychlorinated dibenzodioxin (PCDD) and dibenzofuran (PCDF) isomers, there is widespread concern regarding effective sampling and analysis for these compounds. One stationary source which raises concern is the effluent of hazardous waste incinerators where PCDDs/PCDFs may be formed during thermal destruction of hazardous waste. Particulate material in incinerator flue gas is collected on a quartz fiber filter in the sampling train recommended by the U.S. Environmental Protection Agency for collection of PCDDs and PCDFs. These halogenated organic compounds are recovered from the filter and from the sorbent of the sampling train by extraction with an organic solvent. To evaluate the effectiveness of this extraction process, a spiking study was performed using filters from various stationary sources. In comparing recoveries from particulate-laden filters to recoveries from spiked clean filters, no significant compound losses can be attributed to the particulate matter interactions in these samples. A modified sampling method has been written to address concerns about potential problems with recovery of PCDDs/PCDFs from particulate-laden sampling train filters.

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