Metropolitan Washington
 
Data courtesy of:
 

 
AQI: Good (0 - 50) AQI: Moderate (51 - 100) AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy (151 - 200) AQI: Very Unhealthy (201 - 300) AQI: Hazardous(301 - 500) Action Day
 
Local Air Quality Resources
Action Day Programs | Forecast
 
State Air Quality Resources
American Lung Association (ALA) of the District of Columbia
District Department of the Environment
District Dept. of the Environment - Contacts
Metropolitan Washington Council of Governments - Air Quality Forecast and Index
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
47 
Good
Health Message: None
Air Quality Index (AQI)
33 
Good
Health Message: None
AQI - Pollutant Details
Ozone
47 
Good
Particles (PM2.5)
25 
Good
Particles (PM2.5)
33 
Good

Current Conditions
Air Quality Index (AQI)
observed at 15:00 EDT
40
Good
Health Message: None
Note: Values above 500 are considered Beyond the AQI. Follow recommendations for the Hazardous category. Additional information on reducing exposure to extremely high levels of particle pollution is available here.
AQI - Pollutant Details
Ozone 40 Good
Particles (PM10) 6 Good
Particles (PM2.5) 22 Good

Past Air Quality Maps and Data
Yesterday's Maps and Data
Air Quality Maps Archives (by region)

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