This fact sheet is designed to answer questions about how people with asthma can be affected by air pollution and how they can use the Air Quality Index to reduce their exposure.

The purpose of this fact sheet is to increase awareness that air pollution can trigger heart attacks, stroke, and other health effects.  It also provides information about steps to take to protect your health – including using the Air Quality Index to reduce exposure. It includes information about risk factors for heart disease and stroke, and lists the warning signs of heart attack and stroke.