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Fig. 3 | Environmental Health and Preventive Medicine

Fig. 3

From: Spectrophotometric determination of ammonia levels in tobacco fillers of and sidestream smoke from different cigarette brands in Japan

Fig. 3

Ammonia levels in the tobacco filler of commercially marketed cigarettes in Japan (manufactured by Japan Tobacco Inc. (JT), Natural American Spirit, British American Tobacco, and Philip Morris Japan). The differences between the ammonia levels in cigarettes of different companies were analyzed by one-way ANOVA, followed by the Bonferroni post hoc test (*p < 0.05, ***p < 0.001)

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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