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Apps & Resources

Various air quality resources and mobile apps are available for download.

Smoke Sense

Designed to pilot a citizen science study about the impacts of smoke exposure on health.


Provides access to outdoor air quality data collected from state, local and tribal monitoring agencies.


Provides local air quality information to help you make informed decisions about moving or vacationing.


The Air Quality Index (AQI) tells you how clean or polluted your outdoor air is.

Air Quality Trends

EPA tracks trends in six key pollutants called criteria air pollutants.

EPA Air Topics

Learn how air pollution can harm your health, and what EPA is doing to protect the air we breathe.