The highest AQ index in Maryland (as of 3:00 EST) is currently the Maryland Piedmont area. Ozone (OZONE) is measuring at 32 (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 Hagerstown Region area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.
Clean, dry fall weather is expected to persist over the next several days. Low dew points and ample surface mixing over this period will ensure Good fine particulate levels through the weekend and into the first half of next week. 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 9 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.