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  4. Worcester County

Worcester County

Massachusetts

2026-08-20 05:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
40.7
PM10
μg/m³
11.9
NO2
μg/m³
22.6
PM2.5
μg/m³
6
CO
μg/m³
250
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
18℃
91%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • NO2
  • PM2.5
  • CO
  • SO2
Places included
Ashburnham
AQI 8
Athol
AQI 15
Auburn
AQI 13
Barre Town
AQI 12
Berlin
AQI 13
Blackstone
AQI 9
Bolton
AQI 13
Boylston
AQI 13
Brookfield
AQI 13
Charlton
AQI 13
Clinton
AQI 13
Douglas
AQI 9
Dudley
AQI 9
East Brookfield
AQI 13
Fitchburg
AQI 16
Gardner
AQI 18
Grafton
AQI 13
Hardwick
AQI 13
Harvard
AQI 11
Holden
AQI 13
Hopedale
AQI 9
Hubbardston
AQI 13
Lancaster
AQI 13
Leicester
AQI 13
Leominster
AQI 13
Lunenburg
AQI 15
Mendon
AQI 9
Milford
AQI 9
Millbury
AQI 13
Millville
AQI 9
New Braintree
AQI 13
North Brookfield
AQI 13
Northborough
AQI 13
Northbridge
AQI 9
Oakham
AQI 13
Oxford
AQI 13
Paxton
AQI 13
Petersham
AQI 12
Phillipston
AQI 14
Princeton
AQI 13
Royalston
AQI 8
Rutland
AQI 13
Shrewsbury
AQI 13
Southborough
AQI 13
Southbridge
AQI 13
Spencer
AQI 13
Sterling
AQI 13
Sturbridge
AQI 13
Sutton
AQI 13
Templeton
AQI 15
Upton
AQI 9
Uxbridge
AQI 9
Warren
AQI 17
Webster
AQI 9
West Boylston
AQI 13
West Brookfield
AQI 13
Westborough
AQI 13
Westminster
AQI 16
Winchendon
AQI 8
Worcester
AQI 24
Data Sources
http://www.airnow.gov/

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Cities Nearby

Princeton
AQI 13
Holden
AQI 13
West Boylston
AQI 13
Sterling
AQI 13
Rutland
AQI 13
Paxton
AQI 13
Boylston
AQI 13
Hubbardston
AQI 13
Clinton
AQI 13
Leominster
AQI 13
Westminster
AQI 16