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  5. Henniker

Henniker

Merrimack County

2026-02-18 12:00
AQI (India)
Satisfactory
Pollutants
O3
μg/m³
56.6
PM2.5
μg/m³
14.7
PM10
μg/m³
15.1
NO2
μg/m³
11.9
CO
μg/m³
133
SO2
μg/m³
1.2
Weather
  • ℃
  • ℉
-1℃
97%
5 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • O3
  • PM2.5
  • PM10
  • NO2
  • CO
  • SO2
Places included
Henniker
AQI 57

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