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  2. United States
  3. Connecticut
  4. New Haven County

New Haven County

Connecticut

2026-10-21 00:00
AQI (China)
Excellent
Pollutants|Pollens
NO2
μg/m³
34.1
O3
μg/m³
45
PM10
μg/m³
9.8
PM2.5
μg/m³
4
CO
μg/m³
250
SO2
μg/m³
0.9
Weather
  • ℃
  • ℉
13℃
53%
9 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (China)
  • Pollen
  • NO2
  • O3
  • PM10
  • PM2.5
  • CO
  • SO2
Places included
Branford
AQI 8
Derby
AQI 8
East Haven
AQI 8
Guilford
AQI 8
Hamden
AQI 8
Madison
AQI 8
Meriden
AQI 13
Middlebury
AQI 13
Milford
AQI 11
Naugatuck
AQI 13
New Haven
AQI 18
North Haven
AQI 8
Oxford
AQI 13
Waterbury
AQI 13
West Haven
AQI 8
Woodbridge
AQI 8
Data Sources
http://www.airnow.gov/

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Cities Nearby

Branford
AQI 8
East Haven
AQI 8
North Haven
AQI 8
Hamden
AQI 8
New Haven
AQI 18
Guilford
AQI 8
West Haven
AQI 8
Woodbridge
AQI 8
Madison
AQI 8
Clinton
AQI 19
Meriden
AQI 13