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Basemap
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Air Quality
PM2.5 observations (annual):
Annual AQI:
Satellite data
Median AQI
AirNow measurements
Median AQI (County)
PurpleAir measurements
PM2.5 (model-based)
Public Health and Demographics
National highway system
Railroads
Marine vessel traffic
Health, environmental, and socioeconomic layers (choose one):
Population density
Air toxics cancer risk
Low life expectancy
Air toxics respiratory hazards
PM2.5 Emissions by Source
Facility PM2.5 emissions
Diesel PM
County-level PM2.5 emissions estimates from (choose one):
Fires
Mobile - onroad
Dust
Mobile - off-road
Agricultural dust
Marine and locomotive
Oil, gas, and mining
Residential fuel combustion
Other nonpoint sources
Industrial fuel combustion
Point sources (countywide)
Industrial Decarbonization Data Explorer
PM2.5 reductions from carbon capture