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  4. Worcester County
  5. Petersham

Petersham

Worcester County, Massachusetts

2026-08-17 02:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
75.6
PM10
μg/m³
9.9
PM2.5
μg/m³
4.9
Weather
  • ℃
  • ℉
21℃
71%
17 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5

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