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  4. Worcester County

Worcester County

Massachusetts

2026-08-20 04:00
AQI (China)
Excellent
Pollutants|Pollens
NO2
μg/m³
32.9
O3
μg/m³
41.8
PM10
μg/m³
12.1
PM2.5
μg/m³
5.7
CO
μg/m³
250
SO2
μg/m³
0.3
Weather
  • ℃
  • ℉
18℃
89%
11 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • NO2
  • O3
  • PM10
  • PM2.5
  • CO
  • SO2
Places included
Ashburnham
AQI 9
Athol
AQI 17
Auburn
AQI 13
Barre Town
AQI 13
Berlin
AQI 13
Blackstone
AQI 10
Bolton
AQI 13
Boylston
AQI 13
Brookfield
AQI 13
Charlton
AQI 13
Clinton
AQI 13
Douglas
AQI 10
Dudley
AQI 10
East Brookfield
AQI 13
Fitchburg
AQI 18
Gardner
AQI 20
Grafton
AQI 13
Hardwick
AQI 14
Harvard
AQI 15
Holden
AQI 13
Hopedale
AQI 10
Hubbardston
AQI 13
Lancaster
AQI 13
Leicester
AQI 13
Leominster
AQI 13
Lunenburg
AQI 17
Mendon
AQI 10
Milford
AQI 10
Millbury
AQI 13
Millville
AQI 10
New Braintree
AQI 13
North Brookfield
AQI 13
Northborough
AQI 13
Northbridge
AQI 10
Oakham
AQI 13
Oxford
AQI 13
Paxton
AQI 13
Petersham
AQI 13
Phillipston
AQI 15
Princeton
AQI 13
Royalston
AQI 7
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 16
Upton
AQI 10
Uxbridge
AQI 10
Warren
AQI 16
Webster
AQI 10
West Boylston
AQI 13
West Brookfield
AQI 13
Westborough
AQI 13
Westminster
AQI 18
Winchendon
AQI 9
Worcester
AQI 23
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 18