• Regul. Toxicol. Pharmacol. · Apr 2005

    Smoke composition and predicting relationships for international commercial cigarettes smoked with three machine-smoking conditions.

    • M E Counts, M J Morton, S W Laffoon, R H Cox, and P J Lipowicz.
    • Philip Morris USA Research Center, 4201 Commerce Road, Richmond, VA 23234, USA. maryellen.counts@pmusa.com
    • Regul. Toxicol. Pharmacol. 2005 Apr 1; 41 (3): 185-227.

    AbstractThe study objectives were to determine the effects of smoking machine puffing parameters on mainstream smoke composition and to express those effects as predicting relationships. Forty-eight commercial Philip Morris USA and Philip Morris International cigarettes from international markets and the 1R4F reference cigarette were machine-smoked using smoking conditions defined by the International Organization of Standardization (ISO), the Massachusetts Department of Public Health (MDPH), and Health Canada (HC). Cigarette tobacco fillers were analyzed for nitrate, nicotine, tobacco-specific nitrosamines (TSNA), and ammonia. Mainstream yields for tar and 44 individual smoke constituents and "smoke pH" were determined. Cigarette constituent yields typically increased in the order ISO

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