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  5. Petersham

Petersham

Worcester County, Massachusetts

2026-10-02 17:00
AQI (China)
Excellent
Pollutants|Pollens
O3
μg/m³
72.1
PM10
μg/m³
17.4
PM2.5
μg/m³
9.6
Weather
  • ℃
  • ℉
26℃
60%
22 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • O3
  • PM10
  • PM2.5

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