Western Maryland
 
Data and Forecasts courtesy of:
 

AQI Forecast - https://files.airnowtech.org/airnow/today/forecast_aqi_20170530_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: Good (0 - 50)
Air quality is considered satisfactory, and air pollution poses little or no risk.
AQI: Moderate (51 - 100) AQI: Moderate (51 - 100)
Air quality is acceptable; however, for some pollutants there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.
AQI: Unhealthy for Sensitive Groups (101 - 150) AQI: Unhealthy for Sensitive Groups (101 - 150)
Although general public is not likely to be affected at this AQI range, people with lung disease, older adults and children are at a greater risk from exposure to ozone, whereas persons with heart and lung disease, older adults and children are at greater risk from the presence of particles in the air.
AQI: Unhealthy (151 - 200) AQI: Unhealthy (151 - 200)
Everyone may begin to experience health effects members of sensitive groups may experience more serious health effects.
 AQI:Very Unhealthy (201 - 300) AQI: Very Unhealthy (201 - 300)
Health alert: everyone may experience more serious health effects.
AQI: Hazardous(301 - 500) AQI: Hazardous (301 - 500)
Health warnings of emergency conditions. The entire population is more likely to be affected.
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)
 
Data and Forecasts courtesy of:
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)
33 
Good
Ozone
44 
Good
Particles (PM2.5)
25 
Good
Forecast Discussion: More clouds than sun is expected Tuesday. This along with unseasonably cool temperatures will keep ozone concentrations in the Good range across the state. A bit more sunshine will break through the clouds Wednesday as temperatures rebound to more seasonable levels. A slight uptick in ozone concentrations is expected, but will likely remain in the Good AQI range due to a very clean residual layer. High pressure will quickly move into the region for Thursday. Ample sunshine will return, but with a clean northerly flow, ozone concentrations are only forecast to reach threshold Good to low Moderate. –MDE

Current Conditions
Air Quality Index (AQI)
observed at 6:00 EDT
28
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 23 Good
Particles (PM2.5) 28 Good

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

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