EJ Screen Traffic Proximity

The traffic proximity indicator is based on AADT count divided by distance in meters from the Census block centroid. The proximity score is based on the traffic within a search radius of 500 meters (or further if none is found in that radius). This distance was selected to be large enough to capture the great…

EJ Screen Ozone

The ozone indicator in EJScreen reflects potential ozone exposure measured in terms of summer seasonal daily average maximum concentrations in an 8-hour period measured in parts per billion. Ozone information included in EJScreen highlights areas across the U.S. that are not meeting the national ambient air quality standard for ozone. In other words, the levels…

New Data! Visit the Map Room to access data for seven new map layers from the CDC’s BRFSS Places!

New data include prevalence estimates for adult with any disability including vision, hearing, self-care, mobility, cognitive, and independent living. Estimates from the PLACES Project are available at the county, city, ZIP Code, and census tract levels for nearly every community in the United States. For more map layers from this series, search the Map Room…