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)
33 
Good
Health Message: None
Air Quality Index (AQI)
25 
Good
Health Message: None
AQI - Pollutant Details
Particles (PM2.5)
33 
Good
Particles (PM2.5)
25 
Good
Forecast Discussion: Gusty west to northwest winds will persist for the next few days. This will allow for great horizontal transport and keep our fine particle concentrations low. A weak high pressure system will move in for Friday, weakening surface winds and increasing subsidence. Expect particulate concentrations to rise slightly but should remain within the Good AQI range. -MDE

Current Conditions
Air Quality Index (AQI)
observed at 17:00 EST
19
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 19 Good
Particles (PM2.5) 11 Good

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