Exposure to Secondhand Tobacco Smoke at Airport Terminals

Table 1

Characteristics of airports included in this study.

Airport arrival areas	Outdoor smoking restrictions?	Smoking areas in arrivals	Arrivals enclosed by departures overhead?	Ventilation	Terminal doors	Cigarette smell	Compliance with nonsmoking signs
Airport A	Yes	At terminal ends and in between on sidewalk; within 9 m of terminal entrances	Yes	Yes	Two sets	Yes	Poor; cigarette butts on ground even in nonsmoking areas
Airport B	Yes	Over 20 m away from entrance in secluded areas	Yes	Yes	One set	No	Moderate
Airport C	Yes	At terminal ends only but within 9 m of entrances	Yes	Yes	One set	No	Generally yes