Smoking Restrictions in Large-Hub Airports --- United States, 2002 and 2010

Smoking Restrictions in Large-Hub Airports --- United States, 2002 and 2010
Weekly
November 19, 2010 / 59(45);1484-1487

Secondhand smoke (SHS) exposure causes death and disease in both nonsmoking adults and children, including cancer, cardiovascular and respiratory diseases (1). SHS exposure causes an estimated 46,000 heart disease deaths and 3,400 lung cancer deaths among U.S. nonsmoking adults annually (1). Adopting policies that completely eliminate smoking in all indoor areas is the only effective way to eliminate involuntary SHS exposure (1). In 2009, an estimated 696 million aircraft passenger boardings occurred in the United States (2). A 2002 survey of airport smoking policies found that 42% of 31 large-hub U.S. airports had policies requiring all indoor areas to be smoke-free (3). To update that finding, CDC analyzed the smoking policies of airports categorized as large-hub in 2010. This report summarizes the results of that analysis, which found that, although 22 (76%) of the 29 large-hub airports surveyed were smoke-free indoors, seven airports permitted smoking in certain indoor locations, including three of the five busiest airports. Although a majority of airports reported having specifically designated smoking areas outdoors in 2010 (79%) and/or prohibiting smoking within a minimum distance of entryways (69%), no airport completely prohibited smoking on all airport property. Smoke-free policies at the state, local, or airport authority level are needed for all airports to protect air travelers and workers at airports from SHS.

Large-hub airports are defined by the Federal Aviation Administration as airports that accounted for ≥1% of total passenger boardings in the United States during the previous year. Combined, the 29 airports categorized as large-hub in 2010 accounted for approximately 70% of total passenger boardings in the United States in 2009 (2).

Smoking policies in airports can be established by state statute; county or city ordinance; or airport/transit authority rule, regulation, or policy. An airport was defined as smoke-free indoors when smoking by anyone was prohibited at all times, in all indoor areas of the airport. To determine the smoking policies in place at the 29 large-hub airports, information was collected during July--September 2010. CDC first reviewed and analyzed state and local laws from databases of current statutes and ordinances and airport authority rules and regulations available on Internet sites. Results were then compared with a list of airport smoking policies maintained by the Americans for Nonsmokers' Rights Foundation (4) and with other Internet resources, including policy information on airport websites. Finally, airport personnel were contacted to resolve any inconsistencies between CDC's findings and other reports and to collect additional information on smoking policies. These results were compared with information on smoking policies at the 31 airports categorized as large-hub in 2002 (3).*

The CDC analysis included identifying 1) whether smoking was allowed or prohibited in all indoor areas; 2) where smoking (if allowed) was permitted indoors, including the type and number of locations; 3) whether outdoor smoking areas were designated; 4) whether smoking was prohibited within a minimum distance of airport entrances; and 5) how smoking policies were communicated to aircraft passengers and airport workers and visitors (i.e., written policies, signage, or announcements on the public address system).

Twenty-two (76%) of the 29 large-hub airports were smoke-free indoors in 2010 (Table 1), compared with 13 (42%) of 31 large-hub airports in 2002 (Table 2). Among the seven large-hub airports that allowed smoking indoors in 2010, three were ranked among the top five in passenger boardings: Hartsfield-Jackson Atlanta International, Dallas/Fort Worth International, and Denver International.

None of the 29 large-hub airports completely prohibited smoking outdoors on airport property. A larger percentage (79%) of airports reported having specifically designated outdoor smoking areas in 2010 than in 2002 (68%). The percentage of airports with policies prohibiting smoking within a minimum distance of airport entrances (range: 10--30 feet) also was greater in 2010 (69%) than in 2002 (61%) (Table 2). In 2010, airports that permitted smoking indoors were less likely than those that did not to have designated outdoor smoking areas (71% versus 82%) or minimum distance requirements outdoors (29% versus 82%). A similar pattern was observed in 2002 (3).

All 29 large-hub airports reported posting signage to communicate their smoking policy; 72% of these airports also reported that announcements related to the smoking policy were made over the airport's public address system. Some large-hub airports reported that they had made such announcements previously but had discontinued them because the smoking policy was well-known.

Reported by

A Cordero, MPA, M Tynan, S Babb, MPH, G Promoff, MA, Office on Smoking and Health, National Center for Chronic Disease Prevention and Health Promotion, CDC.

Editorial Note

The findings in this report show increases from 2002 to 2010 in the percentages of large-hub airports that are smoke-free indoors, that have designated outdoor smoking areas, and that prohibit smoking within a minimum distance of airport entrances. However, seven large-hub airports allowed smoking indoors in 2010, including three of the five busiest airports. Together, these seven airports that allowed smoking indoors accounted for approximately 151 million (22%) of the 696 million total passenger boardings in the United States in 2009 (2). SHS exposure causes heart disease and lung cancer in nonsmoking adults and can have immediate adverse effects on the cardiovascular system (1). According to the 2006 report of the Surgeon General, the scientific evidence indicates that there is no risk-free level of SHS exposure (1). Brief exposures to secondhand smoke can cause blood platelets to become stickier, damage the lining of blood vessels, decrease coronary flow velocity reserves, and reduce heart rate variability, potentially increasing the risk for a heart attack (1,5). SHS contains chemicals that can quickly irritate and damage the lining of the airways. Even brief exposure can result in upper airway changes in healthy persons and can lead to more frequent and more severe asthma attacks in children who already have asthma (1).Smoke-free policies not only eliminate the risk from involuntary SHS exposure, but also change social norms and motivate smokers to quit (1).

Although smoking was prohibited on all airline flights to and from the United States in 2000, no federal policy requires airports to be smoke-free. Cigarette manufacturers have promoted separately enclosed and ventilated smoking areas to the management of airports and opposed efforts to make airports completely smoke-free (6,7). Enclosed and ventilated smoking rooms are not effective in eliminating SHS exposure (1), and air travelers or airport workers who pass by these rooms are at risk for exposure to SHS (8,9). A 2010 study found that, although ventilated smoking rooms in a medium-hub airport were operating properly, SHS leaked to surroundings areas where smoking was prohibited (9).

Air travelers and airport workers also are at risk for SHS exposure when entering or exiting an airport building. According to a study by the California Air Resources Board, nicotine concentrations adjacent to outdoor smoking areas at airports can be as high as those in some smokers' homes (10). Moreover, in some airports, the designated outdoor smoking areas are partially enclosed. Outdoor SHS levels might be particularly high in these partially enclosed areas or where smoking is allowed around airport entrances.

Most airports that are smoke-free indoors are located in states or cities that have laws in place prohibiting smoking in public places or places of employment with no exemptions for airports. The reported smoking policies of all 29 large-hub airports in this report appeared to be in compliance with state and local laws. For example, although state laws in Colorado† and Utah§ prohibit smoking in workplaces and public places, they specifically exempt smoking rooms at airports.

The findings in this report are subject to at least three limitations. First, this study did not measure enforcement of or compliance with airport smoking policies. Second, the survey is based partially on self-report by airport personnel, rather than on firsthand observations by CDC researchers. However, self-reports were cross-checked with multiple information sources, and inconsistencies were reconciled. Finally, the findings from 2002 were based solely on self-report by airport personnel (3), which might yield less accurate findings than the multiple information sources used in this report.

To protect the health of air travelers and airport workers, greater efforts are needed to completely eliminate smoking inside airports through state or local laws or airport regulations and to remove exemptions from state and local laws that prohibit smoking in workplaces and public places, yet allow smoking within airports. In addition, further research on enforcement of and compliance with airport smoking policies is needed. Further research also is needed to measure levels of tobacco smoke constituents inside and outside of airport buildings.

Acknowledgments

This report is based, in part, on past contributions by the late Ron Davis, MD, former director, Office on Smoking and Health, and former president of the American Medical Association; and contributions by ES Pevzner, PhD National Center for HIV, Viral Hepatitis, STD, and TB Prevention, CDC.

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Smoking Restrictions in Large-Hub Airports --- United States, 2002 and 2010