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
7.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.53 μg/m³
0
55
155
255
425
605+
39.27 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
8.65 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Trumbull, Connecticut
Trumbull, Connecticut
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AQI 40
Good
7.48μg/m³
PM2.5
18.95μg/m³
PM10
43.12ppb
O3
0.45ppb
SO2
6.64ppb
NO2
0.21ppm
CO
AQI 42
Good
6.93μg/m³
PM2.5
16.56μg/m³
PM10
45.34ppb
O3
0.43ppb
SO2
6.55ppb
NO2
0.21ppm
CO
AQI 33
Good
5.58μg/m³
PM2.5
17.96μg/m³
PM10
33.57ppb
O3
0.42ppb
SO2
7.95ppb
NO2
0.20ppm
CO
AQI 41
Good
6.78μg/m³
PM2.5
16.70μg/m³
PM10
44.27ppb
O3
0.43ppb
SO2
6.92ppb
NO2
0.21ppm
CO
AQI 33
Good
6.33μg/m³
PM2.5
15.05μg/m³
PM10
33.46ppb
O3
0.40ppb
SO2
9.08ppb
NO2
0.20ppm
CO
AQI 38
Good
7.19μg/m³
PM2.5
17.95μg/m³
PM10
41.36ppb
O3
0.48ppb
SO2
8.45ppb
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 10:00:00 on 2026-05-13.
The best air quality in Trumbull, Connecticut was recorded at 11:00:00 on 2026-05-14.
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 7.355 μg/m3.
The current PM10 levels in Trumbull, Connecticut are 19.529 μg/m3.
The current carbon monoxide (CO) level in Trumbull, Connecticut is 0.224 ppm.
The current sulfur dioxide (SO2) levels in Trumbull, Connecticut are 0.438 ppb.
The current ozone (O3) levels at Trumbull, Connecticut is 39.265 ppm.
The current nitrogen dioxide (NO2) levels at Trumbull, Connecticut is 8.654 ppb.
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