Western Maryland
 
Data courtesy of:
 

AQI Forecast - http://www.epa.gov/airnow/today/forecast_aqi_20150522_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.
 - http://www.epa.gov/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 - http://www.epa.gov/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 DayAction Day
 
Local Air Quality Resources
Action Day Program
 
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)
Air Quality Forecast
Today's High Tomorrow's High
Air Quality Index (AQI)
42 
Good
Health Message: None
Air Quality Index (AQI)
44 
Good
Health Message: None
AQI - Pollutant Details
Ozone
42 
Good
Particles (PM2.5)
25 
Good
Ozone
44 
Good
Particles (PM2.5)
29 
Good
Forecast Discussion: Ozone concentrations will be building through the weekend towards upper Moderate AQI by Memorial Day. On Friday, Good air quality will persist on strong northwesterly winds in a clean airmass. Clean air is reinforced on Saturday as another cold front brings Good air quality and very mild but sunny weather. High pressure takes control by Sunday, and with sunny skies and slackening winds as well as a typically busy holiday weekend, ozone will likely break into the Moderate range. On Monday, well above normal temperatures combining with an increasing regional pollutant load will push ozone concentrations towards upper Moderate AQI statewide. - MDE

Current Conditions
Air Quality Index (AQI)
observed at 20:00 EDT
42
Good
Health Message: None
AQI - Pollutant Details
Ozone 42 Good
Particles (PM2.5) 33 Good

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

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