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  5. Henniker

Henniker

Merrimack County

2026-09-23 19:00
CAQI (Europe)
Very Low
Pollutants
O3
μg/m³
53.8
PM10
μg/m³
6.2
PM2.5
μg/m³
2.3
CO
μg/m³
230.7
SO2
μg/m³
1.2
NO2
μg/m³
1
Weather
  • ℃
  • ℉
17℃
57%
12 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • O3
  • PM10
  • PM2.5
  • CO
  • SO2
  • NO2
Places included
Henniker
AQI 23

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