On the health effects of environmental tobacco smoke

Possible adverse health effects of breathing environmental tobacco smoke include lung cancer, respiratory illnesses in young children, decreased pulmonary function, decreased lung growth, allergy to tobacco, and exacerbation of angina. These effects are reviewed to aid informed discussion on this health issue. Some of the constituents of tobacco smoke are found in the home, the outdoor environment, and the workplace in permissible concentrations and are considered unlikely to cause ill health. A double standard, one in the workplace and another for the public, may be evolving for acceptable health risks.