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  4. Worcester County

Worcester County

Massachusetts

2026-08-20 07:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
41.8
NO2
μg/m³
24.6
PM10
μg/m³
10.6
PM2.5
μg/m³
6
CO
μg/m³
250
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
17℃
93%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • NO2
  • PM10
  • PM2.5
  • CO
  • SO2
Places included
Ashburnham
AQI 8
Athol
AQI 14
Auburn
AQI 11
Barre Town
AQI 13
Berlin
AQI 11
Blackstone
AQI 10
Bolton
AQI 11
Boylston
AQI 11
Brookfield
AQI 11
Charlton
AQI 11
Clinton
AQI 11
Douglas
AQI 10
Dudley
AQI 10
East Brookfield
AQI 11
Fitchburg
AQI 16
Gardner
AQI 17
Grafton
AQI 11
Hardwick
AQI 13
Harvard
AQI 12
Holden
AQI 11
Hopedale
AQI 10
Hubbardston
AQI 11
Lancaster
AQI 11
Leicester
AQI 11
Leominster
AQI 11
Lunenburg
AQI 14
Mendon
AQI 10
Milford
AQI 10
Millbury
AQI 11
Millville
AQI 10
New Braintree
AQI 11
North Brookfield
AQI 11
Northborough
AQI 11
Northbridge
AQI 10
Oakham
AQI 11
Oxford
AQI 11
Paxton
AQI 11
Petersham
AQI 12
Phillipston
AQI 12
Princeton
AQI 11
Royalston
AQI 8
Rutland
AQI 11
Shrewsbury
AQI 11
Southborough
AQI 11
Southbridge
AQI 11
Spencer
AQI 11
Sterling
AQI 11
Sturbridge
AQI 11
Sutton
AQI 11
Templeton
AQI 14
Upton
AQI 10
Uxbridge
AQI 10
Warren
AQI 18
Webster
AQI 10
West Boylston
AQI 11
West Brookfield
AQI 11
Westborough
AQI 11
Westminster
AQI 16
Winchendon
AQI 8
Worcester
AQI 25
Data Sources
http://www.airnow.gov/

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Cities Nearby

Princeton
AQI 11
Holden
AQI 11
West Boylston
AQI 11
Sterling
AQI 11
Rutland
AQI 11
Paxton
AQI 11
Boylston
AQI 11
Hubbardston
AQI 11
Clinton
AQI 11
Leominster
AQI 11
Westminster
AQI 16