Stay updated with real-time air quality in East 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
East Haven, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.48 μg/m³
0
55
155
255
425
605+
43.42 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
5.29 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
East Haven, Connecticut
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AQI 41
Good
4.86μg/m³
PM2.5
12.29μg/m³
PM10
44.30ppb
O3
0.29ppb
SO2
4.98ppb
NO2
0.13ppm
CO
AQI 40
Good
4.82μg/m³
PM2.5
11.14μg/m³
PM10
43.11ppb
O3
0.30ppb
SO2
5.35ppb
NO2
0.10ppm
CO
AQI 41
Good
4.93μg/m³
PM2.5
12.13μg/m³
PM10
43.70ppb
O3
0.31ppb
SO2
5.01ppb
NO2
0.13ppm
CO
AQI 42
Good
4.97μg/m³
PM2.5
10.97μg/m³
PM10
45.24ppb
O3
0.29ppb
SO2
4.54ppb
NO2
0.16ppm
CO
AQI 41
Good
5.03μg/m³
PM2.5
12.25μg/m³
PM10
44.04ppb
O3
0.30ppb
SO2
5.08ppb
NO2
0.14ppm
CO
AQI 41
Good
4.95μg/m³
PM2.5
12.24μg/m³
PM10
44.10ppb
O3
0.29ppb
SO2
5.13ppb
NO2
0.13ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for East Haven, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in East Haven, Connecticut was at its worst at 01:00:00 on 2026-03-29.
In the last 24 hours, the best air quality in East Haven, Connecticut was observed at 03:00:00 on 2026-03-29.
As of now, the AQI in East Haven, Connecticut is 40, indicating Good conditions.
East Haven, Connecticut air has the highest levels of O3.
Poor air quality in East Haven, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in East Haven, Connecticut are currently 4.845 μg/m3.
The PM10 concentration in East Haven, Connecticut is 11.483 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in East Haven, Connecticut is 0.111 ppm.
Currently, East Haven, Connecticut has a sulfur dioxide (SO2) concentration of 0.297 ppb.
The current ozone (O3) level in East Haven, Connecticut at the moment is 43.423 ppm.
Nitrogen dioxide (NO2) level in East Haven, Connecticut at the moment is 5.287 ppb.
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