Stay updated with real-time air quality in Southbury, 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)
56
Moderate
Southbury, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
12.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
32.39 μg/m³
0
55
155
255
425
605+
14.27 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
12.09 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Southbury, Connecticut
Southbury, Connecticut
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AQI 88
Moderate
28.68μg/m³
PM2.5
61.51μg/m³
PM10
35.64ppb
O3
1.40ppb
SO2
6.24ppb
NO2
0.46ppm
CO
AQI 86
Moderate
27.64μg/m³
PM2.5
52.10μg/m³
PM10
41.92ppb
O3
1.64ppb
SO2
5.86ppb
NO2
0.45ppm
CO
AQI 96
Moderate
32.93μg/m³
PM2.5
45.20μg/m³
PM10
35.77ppb
O3
1.16ppb
SO2
6.24ppb
NO2
0.46ppm
CO
AQI 84
Moderate
26.58μg/m³
PM2.5
40.44μg/m³
PM10
47.60ppb
O3
1.57ppb
SO2
5.47ppb
NO2
0.46ppm
CO
AQI 92
Moderate
30.73μg/m³
PM2.5
81.33μg/m³
PM10
38.83ppb
O3
1.38ppb
SO2
6.16ppb
NO2
0.46ppm
CO
AQI 96
Moderate
32.90μg/m³
PM2.5
43.06μg/m³
PM10
34.85ppb
O3
1.09ppb
SO2
6.36ppb
NO2
0.46ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Southbury, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Southbury, Connecticut was at its worst at 11:00:00 on 2025-07-26.
In the last 24 hours, the best air quality in Southbury, Connecticut was observed at 10:00:00 on 2025-07-27.
As of now, the AQI in Southbury, Connecticut is 88, indicating Moderate conditions.
Southbury, Connecticut air has the highest levels of PM2.5.
Poor air quality in Southbury, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Southbury, Connecticut are currently 28.847 μg/m3.
The PM10 concentration in Southbury, Connecticut is 85.551 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Southbury, Connecticut is 0.364 ppm.
Currently, Southbury, Connecticut has a sulfur dioxide (SO2) concentration of 0.815 ppb.
The current ozone (O3) level in Southbury, Connecticut at the moment is 36.875 ppm.
Nitrogen dioxide (NO2) level in Southbury, Connecticut at the moment is 8.196 ppb.
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