Clean Air Outdoors

Learn the causes, impacts and what you can do to protect against air pollutants.

Common air pollutants carry dangerous health effects. Air pollution triggers asthma episodes, sends people to hospitals, shapes how kids' lungs develop and can even be deadly. Learn the causes, the impacts and what you can do.

State of the Air

We analyze data from official air quality monitors to compile our State of the Air report.

Page last updated: July 18, 2025

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