Designated or ventilated smoking areas can cause involuntary secondhand smoke exposure among nonsmoking travelers and airport employees. The remaining 27 airports continue to allow smoking in designated smoking areas. Among these airports, 23 (46%) completely prohibit smoking indoors, including five of the 10 busiest airports. CDC assessed smoke-free policies at the world’s 50 busiest airports (airports with the highest number of passengers traveling through an airport in a year) as of August 2017 approximately 2.7 billion travelers pass through these 50 airports each year ( 4). Previous CDC reports on airport smoke-free policies found that most large-hub airports in the United States prohibit smoking ( 3) however, the extent of smoke-free policies at airports globally has not been assessed. Surgeon General has concluded that there is no risk-free level of exposure to secondhand smoke ( 1). Exposure to secondhand smoke from burning tobacco products causes premature death and disease, including coronary heart disease, stroke, and lung cancer among nonsmoking adults and sudden infant death syndrome, acute respiratory infections, middle ear disease, exacerbated asthma, respiratory symptoms, and decreased lung function in children ( 1, 2).
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