Article Text
Research letter
More than 500 trillion molecules of strong carcinogens per cigarette: use in product labelling?
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Cigarette smoke contains 72 carcinogens with ‘sufficient evidence for carcinogenicity’ in either laboratory animals or humans.1 2 The amounts of these carcinogens are almost universally expressed as nanograms or micrograms per cigarette, thus conveying the image of very small quantities (one-billionth or one-millionth of a gram, respectively, where 1 g is 1/454th …
Footnotes
Competing interests None.
Provenance and peer review Not commissioned; externally peer reviewed.