The highest AQ index in Maryland (as of 17:00 EDT) is currently the Northern Baltimore area. Ozone (OZONE) is measuring at 80 (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 Northern 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.
Expect a few afternoon clouds Thursday as a weakening frontal boundary pushes south into the area. This along with a relatively clean residual air mass will help keep ozone levels in check despite unseasonal warmth. Expect generally Good air quality statewide with low Moderate conditions possible around and north of metro Baltimore. Winds will shift northerly Friday, persisting into Saturday behind the passing frontal system. Northerly will help to bring temperatures back down to seasonal levels, and with a clean post-frontal air mass expect continued Good air quality statewide. 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 |
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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.