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  5. Hopkinton

Hopkinton

Merrimack County, New Hampshire

2026-06-19 21:00
CAQI (Europe)
Low
Pollutants|Pollens
O3
μg/m³
88.2
PM10
μg/m³
8.1
PM2.5
μg/m³
4.5
CO
μg/m³
122.7
SO2
μg/m³
0.9
NO2
μg/m³
0.8
Weather
  • ℃
  • ℉
22℃
55%
10 kph
1 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • SO2
  • NO2

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