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)
54
Moderate
West Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.33 μg/m³
0
55
155
255
425
605+
19.02 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
23.24 ppb
0
54
101
361
1250
2050+
0.32 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
11.11μg/m³
PM2.5
18.16μg/m³
PM10
19.05ppb
O3
0.20ppb
SO2
22.95ppb
NO2
0.30ppm
CO
AQI 56
Moderate
12.29μg/m³
PM2.5
51.07μg/m³
PM10
10.27ppb
O3
0.24ppb
SO2
21.45ppb
NO2
0.37ppm
CO
AQI 54
Moderate
11.17μg/m³
PM2.5
19.09μg/m³
PM10
19.23ppb
O3
0.20ppb
SO2
23.13ppb
NO2
0.31ppm
CO
AQI 58
Moderate
13.16μg/m³
PM2.5
29.85μg/m³
PM10
12.02ppb
O3
0.22ppb
SO2
24.65ppb
NO2
0.39ppm
CO
AQI 54
Moderate
11.32μg/m³
PM2.5
21.04μg/m³
PM10
19.51ppb
O3
0.20ppb
SO2
23.48ppb
NO2
0.33ppm
CO
AQI 58
Moderate
12.99μg/m³
PM2.5
49.67μg/m³
PM10
9.53ppb
O3
0.24ppb
SO2
21.51ppb
NO2
0.39ppm
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, 2025-12-28.
The best air quality in West Haven, Connecticut was observed at 11:00:00 on 2025-12-27.
The air quality in West Haven, Connecticut right now is Moderate, with an AQI of 54.
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 11.254 μg/m3.
West Haven, Connecticut currently has a PM10 concentration of 19.326 μg/m3.
The current carbon monoxide (CO) level in West Haven, Connecticut is 0.319 ppm.
The current sulfur dioxide (SO2) concentration in West Haven, Connecticut is 0.199 ppb.
West Haven, Connecticut currently has an ozone (O3) concentration of 19.019 ppm.
The current level of nitrogen dioxide (NO2) in West Haven, Connecticut is 23.244 ppb.
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