Stay updated with real-time air quality in Trumbull, 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)
44
Good
Trumbull, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
7.72 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.01 μg/m³
0
55
155
255
425
605+
27.71 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
5.03 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Trumbull, Connecticut
Trumbull, Connecticut
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AQI 38
Good
7.50μg/m³
PM2.5
15.27μg/m³
PM10
23.68ppb
O3
0.23ppb
SO2
3.79ppb
NO2
0.21ppm
CO
AQI 38
Good
7.50μg/m³
PM2.5
25.81μg/m³
PM10
25.94ppb
O3
0.21ppb
SO2
3.66ppb
NO2
0.21ppm
CO
AQI 33
Good
6.22μg/m³
PM2.5
12.83μg/m³
PM10
19.80ppb
O3
0.22ppb
SO2
3.94ppb
NO2
0.21ppm
CO
AQI 38
Good
7.23μg/m³
PM2.5
24.15μg/m³
PM10
25.56ppb
O3
0.20ppb
SO2
3.52ppb
NO2
0.21ppm
CO
AQI 33
Good
5.66μg/m³
PM2.5
16.18μg/m³
PM10
21.23ppb
O3
0.17ppb
SO2
3.87ppb
NO2
0.21ppm
CO
AQI 38
Good
7.42μg/m³
PM2.5
19.32μg/m³
PM10
23.12ppb
O3
0.24ppb
SO2
3.40ppb
NO2
0.21ppm
CO
Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Trumbull, Connecticut is updated on an hourly basis.
The worst air quality in Trumbull, Connecticut was recorded at 11:00:00 on 2026-08-13.
The best air quality in Trumbull, Connecticut was recorded at 04:00:00 on 2026-08-14.
The real-time air quality index in Trumbull, Connecticut is 44, currently categorized as Good.
The most common pollutant in Trumbull, Connecticut is PM2.5.
If the air quality in Trumbull, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Trumbull, Connecticut at present are 7.721 μg/m3.
The current PM10 levels in Trumbull, Connecticut are 19.011 μg/m3.
The current carbon monoxide (CO) level in Trumbull, Connecticut is 0.214 ppm.
The current sulfur dioxide (SO2) levels in Trumbull, Connecticut are 0.222 ppb.
The current ozone (O3) levels at Trumbull, Connecticut is 27.715 ppm.
The current nitrogen dioxide (NO2) levels at Trumbull, Connecticut is 5.03 ppb.
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