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  4. Worcester County

Worcester County

Massachusetts

2026-05-04 23:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
124.3
PM10
μg/m³
18.5
NO2
μg/m³
12.3
CO
μg/m³
250
PM2.5
μg/m³
5
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
17℃
39%
26 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • NO2
  • CO
  • PM2.5
  • SO2
Places included
Ashburnham
AQI 11
Athol
AQI 138
Auburn
AQI 20
Barre Town
AQI 21
Berlin
AQI 20
Blackstone
AQI 14
Bolton
AQI 20
Boylston
AQI 20
Brookfield
AQI 21
Charlton
AQI 20
Clinton
AQI 20
Douglas
AQI 14
Dudley
AQI 14
East Brookfield
AQI 20
Fitchburg
AQI 140
Gardner
AQI 140
Grafton
AQI 20
Hardwick
AQI 21
Harvard
AQI 8
Holden
AQI 20
Hopedale
AQI 14
Hubbardston
AQI 20
Lancaster
AQI 20
Leicester
AQI 20
Leominster
AQI 20
Lunenburg
AQI 140
Mendon
AQI 14
Milford
AQI 14
Millbury
AQI 20
Millville
AQI 14
New Braintree
AQI 21
North Brookfield
AQI 21
Northborough
AQI 20
Northbridge
AQI 14
Oakham
AQI 20
Oxford
AQI 20
Paxton
AQI 20
Petersham
AQI 21
Phillipston
AQI 142
Princeton
AQI 20
Royalston
AQI 8
Rutland
AQI 20
Shrewsbury
AQI 20
Southborough
AQI 20
Southbridge
AQI 20
Spencer
AQI 20
Sterling
AQI 20
Sturbridge
AQI 20
Sutton
AQI 20
Templeton
AQI 142
Upton
AQI 14
Uxbridge
AQI 127
Warren
AQI 21
Webster
AQI 14
West Boylston
AQI 20
West Brookfield
AQI 21
Westborough
AQI 20
Westminster
AQI 142
Winchendon
AQI 11
Worcester
AQI 146
Data Sources
http://www.airnow.gov/

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Cities Nearby

Princeton
AQI 20
Holden
AQI 20
West Boylston
AQI 20
Sterling
AQI 20
Rutland
AQI 20
Paxton
AQI 20
Boylston
AQI 20
Hubbardston
AQI 20
Clinton
AQI 20
Leominster
AQI 20
Westminster
AQI 142