Or maybe he has seen the studies. The hundreds of studies and millions of dollars spent have failed to prove the harm allegedly caused by environmental tobacco smoke. Only the press releases published by those who gain to benefit financially say otherwise.
"In general, there was no elevated lung cancer risk associated with passive smoke exposure in the workplace. ..." Brownson et. al., 1992 "Passive Smoking and Lung Cancer in Nonsmoking Women" American Journal of Public Health, November 1992, Vol. 82, No. 11
"... an odds ratio of 0.91 ... indicating no evidence of an adverse effect of environmental tobacco smoke in the workplace." Janerich et al., 1990 "Lung Cancer and Exposure to Tobacco Smoke in the Household" New England Journal of Medicine, Sept. 6, 1990
"... the association with exposure to passive smoking at work was small and not statistically significant." Kalandidi et al., 1990 "Passive Smoking and Diet in the Etiology of Lung Cancer Among Non- Smokers" Cancer Causes and Control, 1, 15-21, 1990
"Among women exposed only at work, the multivariate relative risks of total CHD were 1.49 ... among those occasionally exposed and 1.92 ... among those regularly exposed to secondhand smoke, neither of which is statistically significant according to commonly accepted scientific standards." Kawachi et al., 1997 "A Prospective Study of Passive Smoking and Coronary Heart Disease" Circulation, Vol. 95, No. 10, May 20, 1997
"No association was observed between the risk of lung cancer and smoking of husband or passive smoke exposure at work." Shimizu et al., 1988 "A Case-Control Study of Lung Cancer in Nonsmoking Women" Tohoku J. Exp. Med., 154:389-397, 1988
"We did not generally find an increase in CHD [coronary heart disease] risk associated with ETS exposure at work or in other settings." Steenland et al., 1996 "Environmental Tobacco Smoke and Coronary Heart Disease in the American Cancer Society CPS-II Cohort" Circulation, Vol. 94, No. 4, August 15, 1996
"... no statistically significant increase in risk associated with exposure to environmental tobacco smoke at work or during social activities...." Stockwell et al., 1992 "Environmental Tobacco Smoke and Lung Cancer Risk in Nonsmoking Women" Journal of the National Cancer Institute, 84:1417-1422, 1992
"There was no association between exposure to ETS at the workplace and risk of lung cancer." Zaridze et al., 1998 "Exposure to Environmental Tobacco Smoke and Risk of Lung Cancer in Non- Smoking Women from Moscow, Russia" International Journal of Cancer, 1998, 75, 335-338
"There were no significant differences in air quality between the tobacco-smoke components in the air of the pub and those of similar non-smoking establishments."--Regulatory Toxicology and Pharmacology, May 11, 2001
The peer-reviewed study, conducted by the U.S. Department of Energy's Oak Ridge National Laboratory found "the level of exposure to secondhand smoke for bartenders, waiters and waitresses in smoking-permitted establishments is considerably lower than the federal air quality limits established by the federal government."--Journal of Exposure Analysis and Environmental Epidemiology, February 2000
"Passive smokers inhale the equivalent of just six cigarettes a year from other people's smoke, according to the largest ever study of actual exposure levels of non-smokers." --Electronic Telegraph, August 16, 1998
Or maybe it's just common sense since smokers, who ingest both direct smoke and shs, generally smoke for decades before any damage can be assessed, if then, and environmental tobacco smoke is diluted by ambient air 100,000 times, making even measurement of toxins difficult. ("ETS is over 100,000 times more diluted than mainstream smoke, is less humid, and has very few volatile compounds. Since ETS is even more diluted than sidestream smoke, fewer than 20 ETS chemicals have been determined directly. Experts assume that the remaining substances in ETS are similar to those in sidestream smoke."--The Oncology Channel, Risk Factors. (Major "assumption" since the levels are too small to be measured.)
"Even from the scientific literature it is difficult to conclude whether the increased risk of lung cancer due to exposure to environmental tobacco smoke (ETS), as reported in many epidemiological studies, is based on sound data from reliable studies, or rather on passionate assertions derived from unsound investigations. The average intake of toxic and genotoxic compounds due to ETS exposure is so low that it is difficult, if not impossible, to explain the increased risk of lung cancer as found in epidemiological studies. The uncertainty is further increased because the validity of epidemiological studies on passive smoking is limited severely by numerous bias and confounding factors which cannot be controlled for reliability. The question of whether or not ETS exposure is high enough to induce and/or promote the carcinogenic effects observed in epidemiological studies thus remains open, and the assumption of an increased risk of lung cancer due to ETS exposure is, at present, more a matter of opinion than of firm scientific evidence."--International Archives of Occupational and Environmental Health, Volume 74 Issue 4 (2001) pp 231-241
Or maybe he has seen the studies. The hundreds of studies and millions of dollars spent have failed to prove the harm allegedly caused by environmental tobacco smoke. Only the press releases published by those who gain to benefit financially say otherwise.
"In general, there was no elevated lung cancer risk associated with passive smoke exposure in the workplace. ..." Brownson et. al., 1992 "Passive Smoking and Lung Cancer in Nonsmoking Women" American Journal of Public Health, November 1992, Vol. 82, No. 11
"... an odds ratio of 0.91 ... indicating no evidence of an adverse effect of environmental tobacco smoke in the workplace." Janerich et al., 1990 "Lung Cancer and Exposure to Tobacco Smoke in the Household" New England Journal of Medicine, Sept. 6, 1990
"... the association with exposure to passive smoking at work was small and not statistically significant." Kalandidi et al., 1990 "Passive Smoking and Diet in the Etiology of Lung Cancer Among Non- Smokers" Cancer Causes and Control, 1, 15-21, 1990
"Among women exposed only at work, the multivariate relative risks of total CHD were 1.49 ... among those occasionally exposed and 1.92 ... among those regularly exposed to secondhand smoke, neither of which is statistically significant according to commonly accepted scientific standards." Kawachi et al., 1997 "A Prospective Study of Passive Smoking and Coronary Heart Disease" Circulation, Vol. 95, No. 10, May 20, 1997
"No association was observed between the risk of lung cancer and smoking of husband or passive smoke exposure at work." Shimizu et al., 1988 "A Case-Control Study of Lung Cancer in Nonsmoking Women" Tohoku J. Exp. Med., 154:389-397, 1988
"We did not generally find an increase in CHD [coronary heart disease] risk associated with ETS exposure at work or in other settings." Steenland et al., 1996 "Environmental Tobacco Smoke and Coronary Heart Disease in the American Cancer Society CPS-II Cohort" Circulation, Vol. 94, No. 4, August 15, 1996
"... no statistically significant increase in risk associated with exposure to environmental tobacco smoke at work or during social activities...." Stockwell et al., 1992 "Environmental Tobacco Smoke and Lung Cancer Risk in Nonsmoking Women" Journal of the National Cancer Institute, 84:1417-1422, 1992
"There was no association between exposure to ETS at the workplace and risk of lung cancer." Zaridze et al., 1998 "Exposure to Environmental Tobacco Smoke and Risk of Lung Cancer in Non- Smoking Women from Moscow, Russia" International Journal of Cancer, 1998, 75, 335-338
"There were no significant differences in air quality between the tobacco-smoke components in the air of the pub and those of similar non-smoking establishments."--Regulatory Toxicology and Pharmacology, May 11, 2001
The peer-reviewed study, conducted by the U.S. Department of Energy's Oak Ridge National Laboratory found "the level of exposure to secondhand smoke for bartenders, waiters and waitresses in smoking-permitted establishments is considerably lower than the federal air quality limits established by the federal government."--Journal of Exposure Analysis and Environmental Epidemiology, February 2000
"Passive smokers inhale the equivalent of just six cigarettes a year from other people's smoke, according to the largest ever study of actual exposure levels of non-smokers." --Electronic Telegraph, August 16, 1998
Or maybe it's just common sense since smokers, who ingest both direct smoke and shs, generally smoke for decades before any damage can be assessed, if then, and environmental tobacco smoke is diluted by ambient air 100,000 times, making even measurement of toxins difficult. ("ETS is over 100,000 times more diluted than mainstream smoke, is less humid, and has very few volatile compounds. Since ETS is even more diluted than sidestream smoke, fewer than 20 ETS chemicals have been determined directly. Experts assume that the remaining substances in ETS are similar to those in sidestream smoke."--The Oncology Channel, Risk Factors. (Major "assumption" since the levels are too small to be measured.)
"Even from the scientific literature it is difficult to conclude whether the increased risk of lung cancer due to exposure to environmental tobacco smoke (ETS), as reported in many epidemiological studies, is based on sound data from reliable studies, or rather on passionate assertions derived from unsound investigations. The average intake of toxic and genotoxic compounds due to ETS exposure is so low that it is difficult, if not impossible, to explain the increased risk of lung cancer as found in epidemiological studies. The uncertainty is further increased because the validity of epidemiological studies on passive smoking is limited severely by numerous bias and confounding factors which cannot be controlled for reliability. The question of whether or not ETS exposure is high enough to induce and/or promote the carcinogenic effects observed in epidemiological studies thus remains open, and the assumption of an increased risk of lung cancer due to ETS exposure is, at present, more a matter of opinion than of firm scientific evidence."--International Archives of Occupational and Environmental Health, Volume 74 Issue 4 (2001) pp 231-241