The highest AQ index in Maryland (as of 9:00 EDT) is currently the Suburban DC area. Particle Pollution (PM2.5) is measuring at 63 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.
Over the next few days, the highest Ozone (OZONE) will be in the Suburban DC 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.
Unseasonal warmth will persist through the weekend as high pressure lingers just to our west. Despite favorable temperatures, ozone levels will be held in check thanks to a relatively clean residual air mass and afternoon cloud coverage. As a result, expect only low Moderate ozone levels along and east of the I-95 corridor both Saturday and Sunday. High pressure will intensify over the Atlantic allowing winds to shift more southerly. Once again, some ozone formation is expected but will be kept in check given a synonymously clean source region. Low Moderate conditions are expected along and north of the urban corridor both Monday and Tuesday. Tropical moisture is expected to push into the region Wednesday from the remnants of Beryl. General cloudiness and precipitation will ensure Good ozone and fine particulates 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 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
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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.