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Environmental tobacco smoke (ETS) contains over 3000 chemicals of which at least 50 are known or suspected to be human carcinogens, while over 200 are regarded as poisonous.1,2 Although passive smoking often occurs in private and public workplaces, with extensive research already conducted in hospitality venues, casinos, airplanes, airports and homes, to our knowledge there are insufficient data (if any) published on motor vehicle secondhand smoke (SHS) levels and no comparisons have been made with other areas where people are involuntarily exposed to ETS.
Measurements of airborne respiratory particles under 2.5 μm (RSP2.5) in diameter were made using the TSI SidePak AM510 Personal Air Monitor during March 2005 in Crete, Greece. Respiratory particles of this size are not specific …