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  5. Hopkinton

Hopkinton

Merrimack County, New Hampshire

2026-05-09 15:00
AQHI (Canada)
Low
Pollutants|Pollens
O3
μg/m³
62.7
PM10
μg/m³
7.4
PM2.5
μg/m³
4.4
NO2
μg/m³
6.3
SO2
μg/m³
2.1
Weather
  • ℃
  • ℉
7℃
90%
15 kph
4 of 11
Historical Data
  • Hourly
  • Daily
  • AQHI (Canada)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • NO2
  • SO2

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