Stay updated with real-time air quality in West Haven, Connecticut featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
22
Good
West Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
4.50 μg/m³
0
55
155
255
425
605+
23.70 ppb
0
55
71
86
201
201+
0.11 ppb
0
36
76
186
605
1005+
4.69 ppb
0
54
101
361
1250
2050+
0.10 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
West Haven, Connecticut
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AQI 20
Good
2.31μg/m³
PM2.5
5.12μg/m³
PM10
22.13ppb
O3
0.20ppb
SO2
6.63ppb
NO2
0.10ppm
CO
AQI 20
Good
2.47μg/m³
PM2.5
8.26μg/m³
PM10
22.10ppb
O3
0.20ppb
SO2
6.00ppb
NO2
0.12ppm
CO
AQI 20
Good
2.32μg/m³
PM2.5
5.31μg/m³
PM10
22.32ppb
O3
0.20ppb
SO2
6.51ppb
NO2
0.10ppm
CO
AQI 25
Good
2.79μg/m³
PM2.5
9.27μg/m³
PM10
26.70ppb
O3
0.20ppb
SO2
5.62ppb
NO2
0.13ppm
CO
AQI 21
Good
2.34μg/m³
PM2.5
5.73μg/m³
PM10
22.78ppb
O3
0.20ppb
SO2
6.23ppb
NO2
0.10ppm
CO
AQI 23
Good
2.47μg/m³
PM2.5
7.37μg/m³
PM10
24.53ppb
O3
0.20ppb
SO2
5.49ppb
NO2
0.13ppm
CO
The air quality data for Connecticut, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for West Haven, Connecticut are available every hour.
West Haven, Connecticut experienced its worst air quality at 03:00:00, 2026-02-11.
The best air quality in West Haven, Connecticut was observed at 02:00:00 on 2026-02-12.
The air quality in West Haven, Connecticut right now is Good, with an AQI of 23.
In West Haven, Connecticut, O3 is the most frequently found pollutant.
When air quality in West Haven, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
West Haven, Connecticut currently has a PM2.5 concentration of 2.252 μg/m3.
West Haven, Connecticut currently has a PM10 concentration of 5.488 μg/m3.
The current carbon monoxide (CO) level in West Haven, Connecticut is 0.105 ppm.
The current sulfur dioxide (SO2) concentration in West Haven, Connecticut is 0.108 ppb.
West Haven, Connecticut currently has an ozone (O3) concentration of 25.148 ppm.
The current level of nitrogen dioxide (NO2) in West Haven, Connecticut is 7.296 ppb.
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