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  3. Massachusetts
  4. Middlesex County

Middlesex County

Massachusetts

2026-04-29 17:00
AQI (US)
Good
Pollutants|Pollens
O3
μg/m³
96.4
PM2.5
μg/m³
4.4
NO2
μg/m³
22.6
PM10
μg/m³
11.1
Weather
  • ℃
  • ℉
14℃
67%
7 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • O3
  • PM2.5
  • NO2
  • PM10
Places included
Acton
AQI 24
Arlington
AQI 31
Ashby
AQI 26
Ashland
AQI 20
Ayer
AQI 24
Bedford
AQI 24
Belmont
AQI 31
Billerica
AQI 24
Boxborough
AQI 24
Burlington
AQI 24
Cambridge
AQI 31
Carlisle
AQI 24
Chelmsford
AQI 42
Concord
AQI 24
Dracut
AQI 24
Dunstable
AQI 24
Everett
AQI 22
Framingham
AQI 20
Groton
AQI 24
Holliston
AQI 20
Hopkinton Township
AQI 20
Hudson CDP
AQI 27
Lexington
AQI 31
Lincoln
AQI 31
Littleton
AQI 24
Lowell
AQI 24
Malden
AQI 22
Marlborough
AQI 27
Maynard
AQI 24
Medford
AQI 22
Melrose
AQI 18
Natick
AQI 31
Newton
AQI 31
North Reading
AQI 18
Pepperell
AQI 24
Reading
AQI 18
Sherborn
AQI 31
Shirley
AQI 24
Somerville
AQI 31
Stoneham
AQI 18
Stow
AQI 24
Sudbury
AQI 31
Tewksbury
AQI 24
Townsend
AQI 26
Tyngsborough
AQI 24
Wakefield
AQI 18
Waltham
AQI 31
Watertown
AQI 31
Wayland
AQI 31
Westford
AQI 24
Weston
AQI 31
Wilmington
AQI 24
Winchester
AQI 22
Woburn
AQI 22
Data Sources
http://www.airnow.gov/

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Cities Nearby

Bedford
AQI 24
Lincoln
AQI 31
Concord
AQI 24
Lexington
AQI 31
Carlisle
AQI 24
Burlington
AQI 24
Billerica
AQI 24
Waltham
AQI 31
Woburn
AQI 22
Weston
AQI 31
Belmont
AQI 31