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)
40
Good
Trumbull, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.45 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.47 μg/m³
0
55
155
255
425
605+
43.14 ppb
0
55
71
86
201
201+
0.22 ppb
0
36
76
186
605
1005+
4.50 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Trumbull, Connecticut
Trumbull, Connecticut
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AQI 38
Good
6.51μg/m³
PM2.5
14.42μg/m³
PM10
12.75ppb
O3
0.14ppb
SO2
5.74ppb
NO2
0.30ppm
CO
AQI 54
Moderate
10.56μg/m³
PM2.5
29.38μg/m³
PM10
16.01ppb
O3
0.13ppb
SO2
6.97ppb
NO2
0.29ppm
CO
AQI 56
Moderate
11.96μg/m³
PM2.5
35.24μg/m³
PM10
8.60ppb
O3
0.14ppb
SO2
6.60ppb
NO2
0.30ppm
CO
AQI 54
Moderate
11.30μg/m³
PM2.5
29.18μg/m³
PM10
14.29ppb
O3
0.13ppb
SO2
7.67ppb
NO2
0.29ppm
CO
AQI 58
Moderate
13.28μg/m³
PM2.5
32.80μg/m³
PM10
7.79ppb
O3
0.13ppb
SO2
6.22ppb
NO2
0.28ppm
CO
AQI 44
Good
8.31μg/m³
PM2.5
21.34μg/m³
PM10
11.34ppb
O3
0.15ppb
SO2
6.29ppb
NO2
0.31ppm
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 12:00:00 on 2025-09-13.
The best air quality in Trumbull, Connecticut was recorded at 05:00:00 on 2025-09-12.
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 8.37 μg/m3.
The current PM10 levels in Trumbull, Connecticut are 21.382 μg/m3.
The current carbon monoxide (CO) level in Trumbull, Connecticut is 0.303 ppm.
The current sulfur dioxide (SO2) levels in Trumbull, Connecticut are 0.144 ppb.
The current ozone (O3) levels at Trumbull, Connecticut is 12.796 ppm.
The current nitrogen dioxide (NO2) levels at Trumbull, Connecticut is 6.206 ppb.
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