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  4. Worcester County

Worcester County

Massachusetts

2026-08-20 21:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
85.7
PM10
μg/m³
10.2
PM2.5
μg/m³
6.2
NO2
μg/m³
8.2
CO
μg/m³
375
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
22℃
78%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • CO
  • SO2
Places included
Ashburnham
AQI 10
Athol
AQI 23
Auburn
AQI 10
Barre Town
AQI 12
Berlin
AQI 10
Blackstone
AQI 11
Bolton
AQI 10
Boylston
AQI 10
Brookfield
AQI 10
Charlton
AQI 10
Clinton
AQI 10
Douglas
AQI 11
Dudley
AQI 11
East Brookfield
AQI 10
Fitchburg
AQI 24
Gardner
AQI 23
Grafton
AQI 10
Hardwick
AQI 25
Harvard
AQI 10
Holden
AQI 10
Hopedale
AQI 11
Hubbardston
AQI 10
Lancaster
AQI 10
Leicester
AQI 10
Leominster
AQI 10
Lunenburg
AQI 23
Mendon
AQI 11
Milford
AQI 11
Millbury
AQI 10
Millville
AQI 11
New Braintree
AQI 10
North Brookfield
AQI 10
Northborough
AQI 10
Northbridge
AQI 11
Oakham
AQI 10
Oxford
AQI 10
Paxton
AQI 10
Petersham
AQI 21
Phillipston
AQI 18
Princeton
AQI 10
Royalston
AQI 10
Rutland
AQI 10
Shrewsbury
AQI 10
Southborough
AQI 10
Southbridge
AQI 10
Spencer
AQI 10
Sterling
AQI 10
Sturbridge
AQI 10
Sutton
AQI 10
Templeton
AQI 19
Upton
AQI 11
Uxbridge
AQI 31
Warren
AQI 30
Webster
AQI 11
West Boylston
AQI 10
West Brookfield
AQI 10
Westborough
AQI 10
Westminster
AQI 24
Winchendon
AQI 10
Worcester
AQI 24
Data Sources
http://www.airnow.gov/

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Cities Nearby

Princeton
AQI 10
Holden
AQI 10
West Boylston
AQI 10
Sterling
AQI 10
Rutland
AQI 10
Paxton
AQI 10
Boylston
AQI 10
Hubbardston
AQI 10
Clinton
AQI 10
Leominster
AQI 10
Westminster
AQI 24