Explore the neighborhood level differences in pollution's health impacts

Our interactive map shows the estimated percent of new childhood asthma cases resulting from exposure to air pollution.

While across the Bay Area, an average of about 20% of new childhood asthma cases are linked to the traffic-related pollutant nitrogen dioxide, this figure is higher than 50% in certain areas.

To use the map: Pan across the map and use the zoom tool to view locations of interest.

Air pollution's impact on childhood asthma