Waltham Real-time Air Quality Index (AQI) & Pollution Report - Air Matters

Waltham

Middlesex County, Massachusetts

2025-12-16 15:00

AQI (China)

Excellent

PM10

μg/m³

30

PM2.5

μg/m³

7.8

Weather

1℃

56%

9 kph

1 of 11

Historical Data

Data Sources

http://www.airnow.gov/

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