Public Exposure Map

Exposure measurements by region

Regions are coloured where this exposure has been measured in enough distinct participants to protect privacy. Regions without enough data simply do not appear — absence on this map does not mean an exposure is absent there.

Measurement type

All catalogued exposures

Back to all exposures

Region health summarizes only concentrations with a matching named benchmark. Click a coloured state to view counties and its benchmark detail.

This map is a research surface, not a diagnostic or safety tool. Colour reflects relative measured levels (or absolute EPA Air Quality Index bands for particulate matter), never a verdict for any individual or address.