4, Marshall Real-time Air Quality Index (AQI) & Pollen Report - Air Matters

4, Marshall

Harford County

2026-04-30 09:00

AQI (China)

Excellent

Pollutants|Pollens

PM10

μg/m³

16

PM2.5

μg/m³

4.5

Weather

10℃

87%

2 kph

0 of 11

Historical Data

Places included

Data Sources

http://www.airnow.gov/

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