Metropolitan Baltimore
 
Data courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20160728_maryland.jpg
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 - https://files.airnowtech.org/airnow/today/cur_aqi_maryland.jpg
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
AQI Animation - https://files.airnowtech.org/airnow/today/anim_aqi_maryland.gif
 
Legend: National Parks/Monuments National Parks/Monuments     Legend: Tribal Boundaries Tribal Boundaries
The tribal boundaries shown here are provided by the Bureau of Indian Affairs and are intended to be used as a general spatial reference only. They are not a formal determination of tribal boundaries by the EPA.
 
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 Program | Greater Baltimore Asthma Alliance
 
State Air Quality Resources
American Lung Association (ALA) of Maryland
Clean Air Partners
MDE - Contacts US
MDE - Air and Health Information Center
Maryland Department of the Environment (MDE)

AirNow.gov is undergoing maintenance. Updates for the forecasts and current conditions are not available between midnight and 4 am EST.

Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
100 
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion outdoors.
Air Quality Index (AQI)
46 
Good
Health Message: None
AQI - Pollutant Details
Ozone
100 
Moderate
Particles (PM2.5)
50 
Good
Ozone
46 
Good
Particles (PM2.5)
42 
Good
Forecast Discussion: As has been the case on Monday, Tuesday and Wednesday, ozone production on Thursday will be dependent on the amount of sunlight which can break through cloud cover. As on previous days, some sunlight, particularly over northern and eastern areas of the state, may foster a quick jump in ozone Thursday before thicker afternoon cloud cover develops. This may cause areas around and northeast of Baltimore in particular to again flirt with USG as on previous days. USG for these areas is also possible as dirty air resides over the Chesapeake Bay. Moderate AQI conditions will remain the official forecast due to increasing cloud cover but air quality alerts will be issued through EnviroFlash and CleanAirPartners if USG conditions develop. Abundant cloud cover and rain on Friday will keep the region in the Good AQI range. More rain on Saturday afternoon will keep the region in the Good AQI range. -MDE

Current Conditions
Air Quality Index (AQI)
observed at 2:00 EDT
65
Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
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 49 Good
Particles (PM2.5) 65 Moderate

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

E-Mail Notification
 
Visibility Camera
Baltimore, MD
 
Baltimore, MD

View Other Visibility Cameras