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Emission of Carcinogenic Components with Automobile Exhausts

Ulf Stenberg, Tomas Alsberg and Roger Westerholm
Environmental Health Perspectives
Vol. 47 (Jan., 1983), pp. 53-63
DOI: 10.2307/3429499
Stable URL: http://www.jstor.org/stable/3429499
Page Count: 11
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Emission of Carcinogenic Components with Automobile Exhausts
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Abstract

Different sampling methods for mutagenic polynuclear aromatic hydrocarbons (PAH) are described. These methods involve either direct sampling of raw exhausts which prior to filtering are cooled in a condenser, or filter sampling of exhausts diluted in a tunnel. The relevance of gas-phase PAHs of samples from diluted exhausts is discussed; methods used are either adsorbents (XAD-2) or cryogenic condensation. The emission of benzo(a)pyrene and certain other PAHs is reported from vehicles using different fuels (gasoline, diesel, LPG, alcohols) or different emission control systems. The emission of some volatiles, such as benzene, ethylene and alkylnitrites, is also presented from different types of fuels used.

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