Secondhand smoke and lung cancer
Secondhand smoke is the smoke given off by a burning tobacco product or the smoke exhaled by a smoker. It is also known as passive smoking, involuntary smoking or involunteary exposure to tobacco smoke. The American Cancer Society estimates that 3,400 lung cancer deaths in non-smoking adults may be the result of exposure to secondhand smoke.
Learn more about secondhand smoke
Vital signs: Nonsmokers' exposure to secondhand smoke --- United States, 1999--2008 (Centers for Disease Control and Prevention)
Secondhand smoke and cancer (National Cancer Institute)
The health consequences of involuntary exposure to tobacco smoke (U.S. Surgeon General and the Centers for Disease Control and Prevention)
Children and secondhand smoke
Children and secondhand smoke exposure: Excerpt from Health consequences of involuntary exposure to tobacco smoke (U.S. Department of Health and Human Services - 2007)
Olivo-Marston et al. 2009. Childhood exposure to secondhand smoke...associated with increased lung cancer risk. Cancer Emidemiol Biomarkers Prev 18:3375-3383
Wipfli et al. 2008. Secondhand smoke exposure among women and children:Evidence from 31 countries American Journal of Public Health 98(4):672-79.
If you are a never smoker with significant exposure to secondhand smoke, check out this study:
Health effects of secondhand smoke exposure (Flight Attendant Medical Research Institute/International Early Lung Cancer Action Program)