ABSTRACT
Those who choose to engage in tobacco smoking subject themselves to air pollution and increase their risk for many chronic diseases. However, it is becoming increasingly apparent that nonsmokers exposed to environmental tobacco smoke (ETS) also are subject to the risks of such air pollution whether the exposure occurs indoors or outdoors. In addition, there is reason to believe that vulnerable subpopulations may be even more susceptible to the adverse health effects of ETS, such as, the elderly, the very young, those with compromised health, and pregnant women and their unborn children.
