Important differences not significant and risk negligible

Jonathan H Bagley, Lecturer in Mathematics,
May 17, 2013
NOT PEER REVIEWED Surface nicotine levels in non-smoking rooms of smoking and smoke-free hotels were found to be significantly different. However, the authors found that "Geometric mean urine cotinine levels did not differ between non-smoking confederates staying in non-smoking rooms of smoke-free and smoking hotels." Therefore surface nicotine is not important. No significant difference was found between air nicotine levels, which is the major cause of concern to those who believe extremely low levels of ETS to be harmful. Also, non-smoking rooms in smoking hotels recorded nicotine levels 1/15th those of smoking rooms. The usual estimate for cigarette equivalence to spending 4 hours a day in a smoky bar is 10 cigarettes a year. The highest I have read claimed by anti tobacco campaigners is 150 cigarettes a year. Roughly, staying in a non-smoking room in a smoking hotel poses at most the same risk as smoking 10 cigarettes a year and more probably, less than one cigarette a year. Both these risks are negligible. See also http://tobaccoanalysis.blogspot.co.uk/2013/05/new-study-warns-of-dangers-of-thirdhand.html

Conflict of Interest:

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Conflict of Interest

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