1. North America
  2. United States
  3. New Hampshire
  4. Belknap County
  5. Alton

Alton

Belknap County, New Hampshire

2025-12-07 23:00
AQI (US)
Good
Pollutants|Pollens
PM2.5
μg/m³
7.1
O3
μg/m³
64.4
PM10
μg/m³
9.2
CO
μg/m³
62.8
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
-1℃
71%
6 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • Pollen
  • PM2.5
  • O3
  • PM10
  • CO
  • SO2

Get the App

Scan QR Code
Air Matters
Realtime broadcasting air quality information on your phone for more than 180 countries.

iPhone, iPad

Android

Cities Nearby

Alton
AQI 40
New Durham
AQI 40
Middleton
AQI 40
Barnstead
AQI 40
Farmington
AQI 40
Strafford
AQI 40
Wolfeboro
AQI 40
Gilmanton
AQI 40
Milton
AQI 40
Brookfield
AQI 40
Gilford
AQI 40