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  4. Worcester County

Worcester County

Massachusetts

2026-05-04 17:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
123.2
PM10
μg/m³
12.9
CO
μg/m³
250
NO2
μg/m³
6.2
PM2.5
μg/m³
3.6
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
21℃
32%
24 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • CO
  • NO2
  • PM2.5
  • SO2
Places included
Ashburnham
AQI 12
Athol
AQI 129
Auburn
AQI 14
Barre Town
AQI 10
Berlin
AQI 14
Blackstone
AQI 12
Bolton
AQI 14
Boylston
AQI 14
Brookfield
AQI 10
Charlton
AQI 14
Clinton
AQI 14
Douglas
AQI 12
Dudley
AQI 12
East Brookfield
AQI 14
Fitchburg
AQI 128
Gardner
AQI 129
Grafton
AQI 14
Hardwick
AQI 10
Harvard
AQI 7
Holden
AQI 14
Hopedale
AQI 12
Hubbardston
AQI 14
Lancaster
AQI 14
Leicester
AQI 14
Leominster
AQI 14
Lunenburg
AQI 128
Mendon
AQI 12
Milford
AQI 12
Millbury
AQI 14
Millville
AQI 12
New Braintree
AQI 10
North Brookfield
AQI 10
Northborough
AQI 14
Northbridge
AQI 12
Oakham
AQI 14
Oxford
AQI 14
Paxton
AQI 14
Petersham
AQI 10
Phillipston
AQI 131
Princeton
AQI 14
Royalston
AQI 7
Rutland
AQI 14
Shrewsbury
AQI 14
Southborough
AQI 14
Southbridge
AQI 14
Spencer
AQI 14
Sterling
AQI 14
Sturbridge
AQI 14
Sutton
AQI 14
Templeton
AQI 130
Upton
AQI 12
Uxbridge
AQI 133
Warren
AQI 10
Webster
AQI 12
West Boylston
AQI 14
West Brookfield
AQI 10
Westborough
AQI 14
Westminster
AQI 128
Winchendon
AQI 12
Worcester
AQI 136
Data Sources
http://www.airnow.gov/

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Cities Nearby

Princeton
AQI 14
Holden
AQI 14
West Boylston
AQI 14
Sterling
AQI 14
Rutland
AQI 14
Paxton
AQI 14
Boylston
AQI 14
Hubbardston
AQI 14
Clinton
AQI 14
Leominster
AQI 14
Westminster
AQI 128