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)
38
Good
Trumbull, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.98 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.10 μg/m³
0
55
155
255
425
605+
34.19 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
5.12 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Trumbull, Connecticut
Trumbull, Connecticut
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AQI 44
Good
7.76μg/m³
PM2.5
15.97μg/m³
PM10
32.06ppb
O3
0.66ppb
SO2
5.60ppb
NO2
0.24ppm
CO
AQI 38
Good
6.58μg/m³
PM2.5
15.67μg/m³
PM10
38.82ppb
O3
0.60ppb
SO2
5.58ppb
NO2
0.24ppm
CO
AQI 29
Good
5.09μg/m³
PM2.5
11.91μg/m³
PM10
31.19ppb
O3
0.68ppb
SO2
6.73ppb
NO2
0.23ppm
CO
AQI 35
Good
6.46μg/m³
PM2.5
15.39μg/m³
PM10
38.01ppb
O3
0.61ppb
SO2
5.42ppb
NO2
0.24ppm
CO
AQI 27
Good
5.27μg/m³
PM2.5
11.88μg/m³
PM10
26.40ppb
O3
0.55ppb
SO2
6.96ppb
NO2
0.24ppm
CO
AQI 38
Good
6.92μg/m³
PM2.5
14.67μg/m³
PM10
33.42ppb
O3
0.66ppb
SO2
4.66ppb
NO2
0.25ppm
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 01:00:00 on 2026-08-17.
The best air quality in Trumbull, Connecticut was recorded at 04:00:00 on 2026-08-16.
The real-time air quality index in Trumbull, Connecticut is 38, 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 6.982 μg/m3.
The current PM10 levels in Trumbull, Connecticut are 15.101 μg/m3.
The current carbon monoxide (CO) level in Trumbull, Connecticut is 0.241 ppm.
The current sulfur dioxide (SO2) levels in Trumbull, Connecticut are 0.647 ppb.
The current ozone (O3) levels at Trumbull, Connecticut is 34.194 ppm.
The current nitrogen dioxide (NO2) levels at Trumbull, Connecticut is 5.123 ppb.
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