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Fig. 1 | Environmental Health and Preventive Medicine

Fig. 1

From: Smoking topography and biomarkers of exposure among Japanese smokers: associations with cigarette emissions obtained using machine smoking protocols

Fig. 1

Tar, nicotine, and carbon monoxide (TNCO) yields by machine smoking tests. Ten cigarette brands were categorized into four groups according to the nicotine yields expressed on the cigarette packages: “ultra-low”- (0–0.1 mg nicotine/cigarette), “low”- (>0.1, <0.6 mg nicotine/cigarette), “medium”- (≥0.6, <1.0 mg nicotine/cigarette), and “high”-yield brands (≥1.0 mg nicotine/cigarette). Numbers over the columns of Health Canada Intense (HCI) measurements indicate the increase (in percentage) compared with the corresponding International Organization for Standardization (ISO) measurements

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Environmental Health and Preventive Medicine

ISSN: 1347-4715

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