St. Mary's County Real-time Air Quality Index (AQI) & Pollution Report - Air Matters

St. Mary's County

Maryland

2025-12-16 21:00

AQI (China)

Excellent

O3

μg/m³

65.5

PM10

μg/m³

15.8

PM2.5

μg/m³

10

Weather

3℃

44%

7 kph

0 of 11

Historical Data

Places included

5, Mechanicsville

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Cities Nearby

Chesapeake Ranch Estates-Drum Point