Sign In
Maryland State Government Maryland Department of the Environment

Current Air Quality Conditions

Please wait about 10 seconds for map to fully load.
Sign up for notifications:
Clean Air Partners
EnviroFlash
Map Legend

Ambient Air Monitoring Program

The Ambient Air Monitoring Program measures ground-level concentrations of criteria pollutants and air toxics, along with surface and aloft meteorological parameters. The Program also performs quality control, quality assurance, and analysis of the pollutant concentrations that are measured at each of the air monitoring stations located throughout Maryland. It is responsible for Air Quality Index (AQI) reporting and issuing daily air quality forecasts as well as coordination of 3D air-shed photochemical grid and dispersion modeling.

In addition, the Program collaborates with local universities to conduct special atmospheric monitoring research to better characterize aloft and surface atmospheric pollutant concentrations. These research initiatives support air quality planning and regulations development.

Learn More:

To report an environmental emergency, see Emergency Numbers.

Air Quality Forecast Discussion:

High pressure is overhead and in control Friday and as a result, light, recirculating winds will allow slight increases in ozone and particle pollution. However, with continued below average temperatures and excellent thermal mixing, Good air quality is expected, except for fine particles in the Hagerstown valley, which may stay in the low Moderate range. Winds stay light over the weekend resulting in low-end Moderate ozone AQI for the urban corridor on Saturday, with more widespread Moderate conditions on Sunday. Particles will also remain near the Good/Moderate threshold Saturday and Sunday. - MDE

If you have any questions, please contact Janice Lafon at 410-537-3280 or e-mail at janice.lafon@maryland.gov so that she may direct your inquiry.