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

St. Mary's County

Maryland

2025-03-18 12:00

CAQI (Europe)

Very Low

O3

μg/m³

54.7

PM2.5

μg/m³

9.9

PM10

μg/m³

15.3

Weather

5℃

52%

19 kph

1 of 11

Historical Data

Places included

5, Mechanicsville

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Cities Nearby

Chesapeake Ranch Estates-Drum Point