The U.S. Environmental Protection Agency and the U.S. Forest Service are pleased to bring you this updated AirNow Fire and Smoke Map, with even more information you can use to protect yourself from wildland fire smoke. This new version features an updated display that allows you to get a quick glance at information, tailored user interfaces for both desktop and mobile, and faster loading. Learn more about the Fire and Smoke Map.
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Air Quality Index (AQI)
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Air Quality Index (AQI)
Every day the Air Quality Index (AQI) tells you how clean or polluted your outdoor air is, along with associated health effects that may be of concern.
Importance of Air Quality
Local air quality affects how you live and breathe. Like the weather, it can change from day to day or even hour to hour.
Air Quality and Your Health
Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in this country.
Air Quality Index (AQI) & Health
Millions of people live in areas where air pollution can cause serious health problems. Local air quality can affect our daily lives. Like the weather, it can change from day to day. EPA developed the Air Quality Index, or AQI, to make information available about the health effects of the five most common air pollutants, and how to avoid those effects.
