The highest AQ index in Maryland (as of 5:00 EST) is currently the Hagerstown Region area. Particle Pollution (PM2.5) is measuring at 47 (Good). This means air quality is satisfactory, and air pollution poses little or no risk.
Over the next few days, the highest Particle Pollution (PM2.5) will be in the Metro Baltimore area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Fires across the Aberdeen Proving Grounds look to be contained at this point in time. The situation will need to be monitored closely over the next several days for potential flair ups but for now the impacts on air quality look to be limited. Southerly flow will persists over the next several days providing unseasonal warmth and elevated dew points. Additionally, the development of overnight and early morning surface inversions will result in fine particulates pushing into the low Moderate range along the I-95 corridor for much of this week. By Friday, high pressure will move to our north as a weak frontal system passes south of the area. Lowering dew points and the impacts of a cleaner Canadian air mass will bring the return of Good air quality across the state. For the latest air quality information, please visit our website here. -MDE
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
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| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 14 minutes ago
Below is a list of counties in Maryland. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.