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 DayAction 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
District of Columbia - Emergency Management Agency - Air Quality Indexes
Metropolitan Washington Council of Governments - Air Quality Information
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
46 
Good
Health Message: None
Air Quality Index (AQI)
38 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
46 
Good
Particles (PM2.5)
38 
Good
Forecast Discussion: Good air quality is expected through the weekend. Strong mixing caused by winds and sunshine on Saturday and Sunday, respectfully, will keep Good air quality in the forecast. Another passing cold front on Monday will reintroduce clean air and Good air quality to the region. Winds and active weather will then keep Good air quality through Wednesday. - MDE

Current Conditions
Air Quality Index (AQI)
observed at 4:00 EDT
37
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5) 37 Good
Ozone 32 Good
Particles (PM10) 7 Good

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

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