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)
33
Good
Trumbull, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.07 μg/m³
0
55
155
255
425
605+
29.73 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
9.70 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Trumbull, Connecticut
Trumbull, Connecticut
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AQI 58
Moderate
12.68μg/m³
PM2.5
18.14μg/m³
PM10
8.24ppb
O3
0.10ppb
SO2
24.50ppb
NO2
0.39ppm
CO
AQI 56
Moderate
12.38μg/m³
PM2.5
21.07μg/m³
PM10
8.97ppb
O3
0.14ppb
SO2
22.27ppb
NO2
0.39ppm
CO
AQI 38
Good
7.01μg/m³
PM2.5
30.10μg/m³
PM10
11.61ppb
O3
0.21ppb
SO2
20.89ppb
NO2
0.38ppm
CO
AQI 56
Moderate
12.34μg/m³
PM2.5
35.36μg/m³
PM10
7.63ppb
O3
0.24ppb
SO2
18.75ppb
NO2
0.40ppm
CO
AQI 52
Moderate
9.79μg/m³
PM2.5
44.40μg/m³
PM10
11.65ppb
O3
0.25ppb
SO2
20.05ppb
NO2
0.41ppm
CO
AQI 56
Moderate
11.57μg/m³
PM2.5
24.48μg/m³
PM10
7.93ppb
O3
0.17ppb
SO2
20.81ppb
NO2
0.39ppm
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 06:00:00 on 2025-11-03.
The best air quality in Trumbull, Connecticut was recorded at 03:00:00 on 2025-11-02.
The real-time air quality index in Trumbull, Connecticut is 58, currently categorized as Moderate.
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 12.966 μg/m3.
The current PM10 levels in Trumbull, Connecticut are 22.398 μg/m3.
The current carbon monoxide (CO) level in Trumbull, Connecticut is 0.301 ppm.
The current sulfur dioxide (SO2) levels in Trumbull, Connecticut are 0.33 ppb.
The current ozone (O3) levels at Trumbull, Connecticut is 5.724 ppm.
The current nitrogen dioxide (NO2) levels at Trumbull, Connecticut is 20.589 ppb.
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