Sometimes the air quality outdoors may not be safe for everyone. What can you do? Pay attention to the Air Quality Index (AQI). The AQI tells you when high levels of air pollution are predicted and how air pollution affects your health.
The AQI is easy to use. If the AQI predicts a "Code Orange" (unhealthy for sensitive groups) day don't cancel your plans—use the AQI to help you plan a better time or place for them.
The AQI tells you about major air pollutants in the U.S. that are regulated by the US Environmental Protection Agency, including ozone and particle pollution. Ozone and particle pollution may harm the health of hundreds of thousands of Americans each year.
Use the AQI Wherever You Go
Don't forget to check the AQI when you're on vacation or travelling within the United States. No matter where you go, you can always access the AQI.
Let's say that the ozone level where you live is predicted to be Code Orange tomorrow. If you're a runner—even if you're healthy—that air quality could hurt you. Using the AQI, you can plan your run for when ozone levels will be lower, shorten your run or walk instead, or run on a treadmill indoors.
Particle pollution has been linked to heart attacks and strokes, and even death in people with heart disease. On a day when particle pollution will be at Code Orange, do something less intense. Walk instead of run or do only lighter outdoor work.