North Carolina’s Air Quality

The Air Quality Index (AQI) is a color-coded chart for reporting daily air quality. Each color tells you how clean or polluted your air is, and what associated health effects might be a concern for you.

The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act: ground-level ozone, particle pollution (also known as particulate matter), carbon monoxide, sulfur dioxide, and nitrogen dioxide. Ground-level ozone and fine particulate matter are the two pollutants that pose the greatest threat to public health in North Carolina.


Check AirNow for your daily Air Quality Forecast or visit our Community Science page for real-time air quality data. You can also sign up for Enviroflash to receive your Air Quality Forecast straight to your inbox.

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