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)
40
Good
West Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.32 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
43.16 μg/m³
0
55
155
255
425
605+
20.74 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
6.29 ppb
0
54
101
361
1250
2050+
0.25 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 54
Moderate
11.36μg/m³
PM2.5
18.37μg/m³
PM10
17.33ppb
O3
0.43ppb
SO2
16.95ppb
NO2
0.30ppm
CO
AQI 54
Moderate
11.38μg/m³
PM2.5
18.40μg/m³
PM10
28.49ppb
O3
0.46ppb
SO2
15.31ppb
NO2
0.29ppm
CO
AQI 54
Moderate
11.38μg/m³
PM2.5
18.97μg/m³
PM10
18.03ppb
O3
0.42ppb
SO2
16.81ppb
NO2
0.30ppm
CO
AQI 60
Moderate
13.68μg/m³
PM2.5
36.79μg/m³
PM10
28.16ppb
O3
0.51ppb
SO2
15.00ppb
NO2
0.28ppm
CO
AQI 56
Moderate
11.60μg/m³
PM2.5
21.61μg/m³
PM10
19.96ppb
O3
0.41ppb
SO2
16.24ppb
NO2
0.29ppm
CO
AQI 54
Moderate
11.29μg/m³
PM2.5
18.47μg/m³
PM10
29.68ppb
O3
0.46ppb
SO2
16.05ppb
NO2
0.28ppm
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 05:00:00, 2026-08-12.
The best air quality in West Haven, Connecticut was observed at 03:00:00 on 2026-08-12.
The air quality in West Haven, Connecticut right now is Moderate, with an AQI of 52.
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 10.115 μg/m3.
West Haven, Connecticut currently has a PM10 concentration of 30.702 μg/m3.
The current carbon monoxide (CO) level in West Haven, Connecticut is 0.285 ppm.
The current sulfur dioxide (SO2) concentration in West Haven, Connecticut is 0.447 ppb.
West Haven, Connecticut currently has an ozone (O3) concentration of 30.285 ppm.
The current level of nitrogen dioxide (NO2) in West Haven, Connecticut is 14.037 ppb.
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