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Some airports have high secondhand smoke levels

Thursday November 22, 2012
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Average air pollution levels from secondhand smoke directly outside designated smoking areas in airports are five times higher than levels in smoke-free airports, according to a study by the Centers for Disease Control and Prevention.

The study, conducted in five large hub U.S. airports, also showed that air pollution levels inside designated smoking areas were 23 times higher than levels in smoke-free airports. In the study, designated smoking areas in airports included restaurants, bars and ventilated smoking rooms.

Five of the 29 largest airports in the United States allow smoking in designated areas that are accessible to the public. The airports that allow smoking include Hartsfield-Jackson Atlanta International Airport, Washington Dulles International Airport, McCarran International Airport in Las Vegas, Denver International Airport and Salt Lake City International Airport, according to the CDC. More than 110 million passenger boardings, about 15% of U.S. air travel, occurred at these five airports in 2011.

The findings "further confirm that ventilated smoking rooms and designated smoking areas are not effective," Tim McAfee, MD, MPH, director of the CDCís Office on Smoking and Health, said in a news release. "Prohibiting smoking in all indoor areas is the only effective way to fully eliminate exposure to secondhand smoke."

A 2006 Surgeon Generalís Report concluded that there is no risk-free level of exposure to secondhand smoke. Although smoking was banned on all U.S. domestic and international commercial airline flights through a series of federal laws adopted from 1987 to 2000, no federal policy requires airports to be smoke-free.

"Instead of going entirely smoke-free, five airports continue to allow smoking in restaurants, bars or ventilated smoking rooms," said Brian King, PhD, a coauthor of the report and an epidemiologist with the Office on Smoking and Health. "However, research shows that separating smokers from nonsmokers, cleaning the air and ventilating buildings cannot fully eliminate secondhand smoke exposure. People who spend time in, pass by, clean or work near these rooms are at risk of exposure to secondhand smoke."

Secondhand smoke causes heart disease and lung cancer in nonsmoking adults and is a known cause of sudden infant death syndrome, respiratory problems, ear infections and asthma attacks in infants and children. Even brief exposure to secondhand smoke can trigger acute cardiac events such as myocardial infarction. Cigarette use kills an estimated 443,000 Americans each year, including 46,000 nonsmokers from heart disease deaths and 3,400 nonsmokers from lung cancer because of exposure to secondhand smoke.

The report appeared Nov. 20 in the CDCís Morbidity and Mortality Weekly Report and is available at http://www.cdc.gov/mmwr/preview/mmwrhtml/mm61e1120a1.htm?s_cid=mm61e1120a1_w.


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