Investigate the problem icon
Step 1: Investigate the problem

Map air quality in your city

Understanding when and where air pollution’s impacts are felt within your city, as well as which pollutants contribute most to poor air quality, allows you to better target interventions and maximize their impact.

Air quality data is available from several sources, including regulatory monitors, low-cost air sensors, satellite retrievals and models. This section offers guidance and resources to help your city tap into locally-relevant air quality information that makes it easier to understand how air quality has changed over time and what it may look like in the future.

Air quality data

  • Filters

    Reset filters
  • Geographic Coverage

  • Sector

  • Pollutants

  • Resource Type

  • Format

  • Cost

  • Owner

  • Data Type

Map Tool

EJScreen

EJScreen (formerly an EPA tool, now discontinued and publicly hosted) is a national mapping and screening tool that combines environmental, health, and demographic data to help...
Washington DC air pollution heatmap
Nitrogen dioxide pollution contributes to approximately 3,500 new childhood asthma cases every year in the Washington D.C. metro region.
New York City air pollution heatmap
Nitrogen dioxide pollution contributes to approximately 21,000 new childhood asthma cases every year in the New York metro region.
Philadelphia air pollution heatmap
Nitrogen dioxide pollution contributes to approximately 4,000 new childhood asthma cases every year in the Philadelphia metro region.
Chicago air pollution heatmap
Nitrogen dioxide pollution contributes to more than 10,000 new childhood asthma cases every year in the Chicago metro region.
Boston air pollution heatmap
Nitrogen dioxide pollution contributes to approximately 2,700 new childhood asthma cases every year in the Boston metro region.
Austin air pollution heatmap
Nitrogen dioxide pollution contributes to more than 1,800 new childhood asthma cases every year in the Austin metro region.
Baltimore air pollution heatmap
Nitrogen dioxide pollution contributes to more than 1,300 new childhood asthma cases every year in Baltimore metro region.

Sign up to get the latest updates on new city clean air tools and resources.