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)
42
Good
West Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.30 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.63 μg/m³
0
55
155
255
425
605+
44.63 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
10.14 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
West Haven, Connecticut
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AQI 41
Good
5.21μg/m³
PM2.5
13.07μg/m³
PM10
44.09ppb
O3
0.30ppb
SO2
11.57ppb
NO2
0.10ppm
CO
AQI 41
Good
5.43μg/m³
PM2.5
13.48μg/m³
PM10
43.60ppb
O3
0.34ppb
SO2
6.70ppb
NO2
0.16ppm
CO
AQI 41
Good
5.21μg/m³
PM2.5
13.32μg/m³
PM10
44.35ppb
O3
0.30ppb
SO2
11.09ppb
NO2
0.11ppm
CO
AQI 44
Good
5.48μg/m³
PM2.5
14.81μg/m³
PM10
46.75ppb
O3
0.40ppb
SO2
5.59ppb
NO2
0.18ppm
CO
AQI 42
Good
5.14μg/m³
PM2.5
13.81μg/m³
PM10
45.27ppb
O3
0.30ppb
SO2
9.81ppb
NO2
0.12ppm
CO
AQI 40
Good
5.57μg/m³
PM2.5
15.86μg/m³
PM10
42.64ppb
O3
0.36ppb
SO2
5.26ppb
NO2
0.17ppm
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 10:00:00, 2026-03-29.
The best air quality in West Haven, Connecticut was observed at 03:00:00 on 2026-03-29.
The air quality in West Haven, Connecticut right now is Good, with an AQI of 42.
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 5.297 μg/m3.
West Haven, Connecticut currently has a PM10 concentration of 13.628 μg/m3.
The current carbon monoxide (CO) level in West Haven, Connecticut is 0.122 ppm.
The current sulfur dioxide (SO2) concentration in West Haven, Connecticut is 0.322 ppb.
West Haven, Connecticut currently has an ozone (O3) concentration of 44.635 ppm.
The current level of nitrogen dioxide (NO2) in West Haven, Connecticut is 10.139 ppb.
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