GAS-PARTICULATE PHASE DISTRIBUTION AND DECAY-RATES OF CONSTITUENTS IN AGING ENVIRONMENTAL TOBACCO-SMOKE

Phase distribution and decay rates of ETS components were determined for an experimental room. Solanesol and protonated nicotine behave like particulate matter (UV-PM). Free nicotine evaporates from the particulate phase during the 5 minute sampling time and decays rapidly from the gaseous phase. Neophytadiene leaves the particulate phase faster than predicted by deposition. Limonene, 3-ethenylpyridine, and naphthalene are present only in the gaseous phase and have slightly different decay rates.