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Nearly 85% of tobacco smoke is invisible—a confirmation of previous claims
  1. Ivan L Gee1,
  2. Sean Semple2,3,
  3. Adrian Watson4,
  4. Andrea Crossfield5
  1. 1Faculty of Health and Applied Social Sciences, Liverpool John Moores University, Liverpool, UK
  2. 2Scottish Centre for Indoor Air, Population Health, Institute of Applied Health Sciences, University of Aberdeen, Aberdeen, UK
  3. 3Scottish Centre for Indoor Air, Institute of Occupational Medicine, Edinburgh, UK
  4. 4School of Science and the Environment, Manchester Metropolitan University, Manchester, UK
  5. 5Tobacco Free Futures, Manchester, UK
  1. Correspondence to Dr Ivan Gee, Faculty of Health and Applied Social Sciences, Liverpool John Moore's University, Henry Cotton Building, 15-21 Webster St, Liverpool L3 2ET, UK; i.l.gee{at}

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Tobacco control campaigns frequently make use of statistical and scientific information to inform the public and policy makers about the dangers of tobacco smoke. It is clearly crucial for the credibility of tobacco control programmes that accurate scientifically valid information is used in these campaign materials, and Siegel1 highlights the importance of ensuring that the evidence base of these materials is scientifically sound.

In 2002, the British Medical Association produced a report on passive smoking that indicated: “Almost 85 per cent of secondhand smoke is in the form of invisible, odourless gases.”2

This referenced a US National …

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  • Competing interests None.

  • Provenance and peer review Not commissioned; externally peer reviewed.