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Individuals who use a hookah (water pipe) as a method of tobacco smoking are exposed to high levels of carbon monoxide (CO). Assessing hookah use in one of the venues of its use (hookah bars) will aid the understanding of the toxins and exposure for the user. In Florida, smoking is prohibited in public places under the Florida Clean Indoor Act but permitted in establishments that have less than 10% gross revenue from food.

To assess the CO level of hookah cafe patrons, using traditional bar patrons as a comparison.

After IRB approval, a nighttime field study of patrons (aged >18 years) exiting hookah cafes and traditional bars in 2009 was conducted, using sidewalk locations immediately outside these establishments in a campus community. As hookah cafes and bars are typically entered and exited in groups, every other group of people exiting the establishment was …