Burning of candles, incense and mosquito coils in indoor environment can release a large number of toxic chemicals. This paper reviews available literature data concerning the nature of these products and their burning characteristics, with particular reference to the PAHs emissions. It has been evidenced that PAHs emission factors show large differences among the investigated materials, even for products belonging to the same class; moreover, it was difficult to find a relationship between the waxes and other raw materials characteristics and the PAHs concentrations within the exhausts. On the other hand, studying the distribution of different PAHs isomers into the exhausts, it was possible to hypothesize if they were released by evaporation and pyrolysis phenomena at relatively low temperature, due to the overheating of the raw materials constituents, or produced by an incomplete combustion at high temperatures.
Characteristics of PAHs emitted from incense, candles and mosquito coils burning
DERUDI, MARCO;ROTA, RENATO;NANO, GIUSEPPE
2013-01-01
Abstract
Burning of candles, incense and mosquito coils in indoor environment can release a large number of toxic chemicals. This paper reviews available literature data concerning the nature of these products and their burning characteristics, with particular reference to the PAHs emissions. It has been evidenced that PAHs emission factors show large differences among the investigated materials, even for products belonging to the same class; moreover, it was difficult to find a relationship between the waxes and other raw materials characteristics and the PAHs concentrations within the exhausts. On the other hand, studying the distribution of different PAHs isomers into the exhausts, it was possible to hypothesize if they were released by evaporation and pyrolysis phenomena at relatively low temperature, due to the overheating of the raw materials constituents, or produced by an incomplete combustion at high temperatures.File | Dimensione | Formato | |
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