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)
37
Good
West Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.04 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.21 μg/m³
0
55
155
255
425
605+
39.55 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
12.01 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
West Haven, Connecticut
West Haven, Connecticut
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AQI 38
Good
6.02μg/m³
PM2.5
15.06μg/m³
PM10
40.96ppb
O3
0.35ppb
SO2
11.27ppb
NO2
0.20ppm
CO
AQI 33
Good
6.29μg/m³
PM2.5
13.73μg/m³
PM10
29.88ppb
O3
0.38ppb
SO2
12.00ppb
NO2
0.21ppm
CO
AQI 38
Good
6.03μg/m³
PM2.5
15.03μg/m³
PM10
40.97ppb
O3
0.35ppb
SO2
11.38ppb
NO2
0.20ppm
CO
AQI 39
Good
7.08μg/m³
PM2.5
19.28μg/m³
PM10
41.91ppb
O3
0.41ppb
SO2
8.55ppb
NO2
0.22ppm
CO
AQI 39
Good
6.13μg/m³
PM2.5
15.40μg/m³
PM10
41.76ppb
O3
0.34ppb
SO2
11.58ppb
NO2
0.21ppm
CO
AQI 33
Good
6.25μg/m³
PM2.5
13.71μg/m³
PM10
28.35ppb
O3
0.38ppb
SO2
11.72ppb
NO2
0.21ppm
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 02:00:00, 2026-05-14.
The best air quality in West Haven, Connecticut was observed at 01:00:00 on 2026-05-13.
The air quality in West Haven, Connecticut right now is Good, with an AQI of 37.
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 6.04 μg/m3.
West Haven, Connecticut currently has a PM10 concentration of 12.209 μg/m3.
The current carbon monoxide (CO) level in West Haven, Connecticut is 0.258 ppm.
The current sulfur dioxide (SO2) concentration in West Haven, Connecticut is 0.364 ppb.
West Haven, Connecticut currently has an ozone (O3) concentration of 39.552 ppm.
The current level of nitrogen dioxide (NO2) in West Haven, Connecticut is 12.014 ppb.
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