Long-Term Sampling Method for PCDD/Fs in Atmosphere by Adsorption onto Economical Materials

A sampling method of dioxins in atmosphere by using economical materials as monitoring indicators was proposed. The materials used were polyurethane foam, newspaper, and activated carbon paper filter. Among the adsorbents, polyurethane adsorbed the most amounts of dioxins. The TEQ values in spring and autumn seasons were 0.13 and 0.027 pg cm^-2, respectively. The composition of dioxin congeners was compared with that obtained by the air-sampler one. As a result, the distribution pattern of dioxins approximately coincided with that of the air-sampler.