SAMPLING OF POLYCHLORINATED DIBENZOFURANS (PCDF) AND DIBENZO(P)DIOXINS (PCDD) IN EMISSIONS FROM COMBUSTION FACILITIES USING AN ADSORPTION METHOD

A sampling method for PCDF/D in emissions from combustion and other industrial facilities is presented in which these substances are deposited in one collection unit consisting of a combination of quartz wool and a polymeric adsorbent (pretreated XAD-2 resin). In combination with a cooled probe, this sampling method can be used for flue gas at temperatures up to more than 1,000-degrees-C, with dust contents up to more than 1 g/m3 and water contents of more than 300 g/m3. Performance characteristics referring relative standard deviations from parallel determinations and comparison with other sampling methods are presented for PCDF/D flue gas concentrations between 2 and 0.02 ng (TE)/m3 (Toxicity equivalent according to NATO/CCMS).