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)
19
Good
West Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.13 μg/m³
0
55
155
255
425
605+
21.27 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
4.76 ppb
0
54
101
361
1250
2050+
0.29 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 19
Good
0.80μg/m³
PM2.5
2.01μg/m³
PM10
21.03ppb
O3
0.74ppb
SO2
5.15ppb
NO2
0.30ppm
CO
AQI 19
Good
0.85μg/m³
PM2.5
4.95μg/m³
PM10
21.21ppb
O3
0.75ppb
SO2
3.85ppb
NO2
0.28ppm
CO
AQI 19
Good
0.82μg/m³
PM2.5
2.07μg/m³
PM10
21.07ppb
O3
0.73ppb
SO2
5.05ppb
NO2
0.30ppm
CO
AQI 20
Good
0.88μg/m³
PM2.5
2.34μg/m³
PM10
21.89ppb
O3
0.57ppb
SO2
3.62ppb
NO2
0.28ppm
CO
AQI 19
Good
0.84μg/m³
PM2.5
2.35μg/m³
PM10
21.39ppb
O3
0.72ppb
SO2
4.81ppb
NO2
0.29ppm
CO
AQI 20
Good
0.87μg/m³
PM2.5
2.58μg/m³
PM10
21.81ppb
O3
0.76ppb
SO2
3.80ppb
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 03:00:00, 2026-09-28.
The best air quality in West Haven, Connecticut was observed at 10:00:00 on 2026-09-28.
The air quality in West Haven, Connecticut right now is Good, with an AQI of 19.
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 0.827 μg/m3.
West Haven, Connecticut currently has a PM10 concentration of 2.129 μg/m3.
The current carbon monoxide (CO) level in West Haven, Connecticut is 0.294 ppm.
The current sulfur dioxide (SO2) concentration in West Haven, Connecticut is 0.703 ppb.
West Haven, Connecticut currently has an ozone (O3) concentration of 21.269 ppm.
The current level of nitrogen dioxide (NO2) in West Haven, Connecticut is 4.759 ppb.
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