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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

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Analysis Map

VERDI

VERDI is a Java program for visualizing meteorology, emissions, and air quality modeling data. With options for overlaying GIS Shapefiles and observational data onto model output,...
Map Model

WRF-Chem

WRF-Chem is the Weather Research and Forecasting (WRF) model coupled with Chemistry. The development of WRF-Chem has been a collaborative effort among the community, led by...
Database Map Tool

PurpleAir

"PurpleAir makes sensors that empower communities who collect hyper-local, real-time, air quality data and share it with the public."
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.

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