Chelmsford Real-time Air Quality Index (AQI) & Pollen Report - Air Matters

Chelmsford

Middlesex County, Massachusetts

2024-06-01 20:00

AQI (UK)

Moderate

Pollutants|Pollens

O3

μg/m³

105

PM2.5

μg/m³

3.9

NO2

μg/m³

6.2

Weather

27℃

28%

9 kph

4 of 11

Historical Data

Places included

USEPA Region 1 Lab

Data Sources

http://www.airnow.gov/

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