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)
56
Moderate
West Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.25 μg/m³
0
55
155
255
425
605+
48.70 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
16.45 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
West Haven, Connecticut
West Haven, Connecticut
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AQI 56
Moderate
11.97μg/m³
PM2.5
20.36μg/m³
PM10
41.74ppb
O3
0.30ppb
SO2
10.33ppb
NO2
0.30ppm
CO
AQI 52
Moderate
9.79μg/m³
PM2.5
46.29μg/m³
PM10
33.80ppb
O3
0.39ppb
SO2
6.55ppb
NO2
0.25ppm
CO
AQI 56
Moderate
11.84μg/m³
PM2.5
21.42μg/m³
PM10
41.05ppb
O3
0.30ppb
SO2
10.01ppb
NO2
0.29ppm
CO
AQI 54
Moderate
11.05μg/m³
PM2.5
37.83μg/m³
PM10
36.16ppb
O3
0.37ppb
SO2
6.38ppb
NO2
0.24ppm
CO
AQI 56
Moderate
11.51μg/m³
PM2.5
25.22μg/m³
PM10
40.34ppb
O3
0.31ppb
SO2
9.36ppb
NO2
0.27ppm
CO
AQI 28
Good
3.10μg/m³
PM2.5
15.74μg/m³
PM10
29.62ppb
O3
0.40ppb
SO2
5.78ppb
NO2
0.24ppm
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 04:00:00, 2026-06-29.
The best air quality in West Haven, Connecticut was observed at 07:00:00 on 2026-06-29.
The air quality in West Haven, Connecticut right now is Moderate, with an AQI of 56.
In West Haven, Connecticut, PM2.5 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 11.886 μg/m3.
West Haven, Connecticut currently has a PM10 concentration of 25.247 μg/m3.
The current carbon monoxide (CO) level in West Haven, Connecticut is 0.283 ppm.
The current sulfur dioxide (SO2) concentration in West Haven, Connecticut is 0.395 ppb.
West Haven, Connecticut currently has an ozone (O3) concentration of 48.699 ppm.
The current level of nitrogen dioxide (NO2) in West Haven, Connecticut is 16.45 ppb.
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