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)
100
Moderate
Southbury, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
18.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
67.31 μg/m³
0
55
155
255
425
605+
69.61 ppb
0
55
71
86
201
201+
0.55 ppb
0
36
76
186
605
1005+
8.44 ppb
0
54
101
361
1250
2050+
0.34 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Southbury, Connecticut
Southbury, Connecticut
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AQI 105
Unhealthy for sensitive groups
20.22μg/m³
PM2.5
58.55μg/m³
PM10
72.36ppb
O3
0.40ppb
SO2
7.81ppb
NO2
0.31ppm
CO
AQI 101
Unhealthy for sensitive groups
19.93μg/m³
PM2.5
58.44μg/m³
PM10
71.05ppb
O3
0.46ppb
SO2
6.34ppb
NO2
0.32ppm
CO
AQI 100
Moderate
20.60μg/m³
PM2.5
41.35μg/m³
PM10
70.35ppb
O3
0.41ppb
SO2
8.79ppb
NO2
0.31ppm
CO
AQI 112
Unhealthy for sensitive groups
21.46μg/m³
PM2.5
36.52μg/m³
PM10
73.53ppb
O3
0.51ppb
SO2
7.28ppb
NO2
0.33ppm
CO
AQI 87
Moderate
20.09μg/m³
PM2.5
46.35μg/m³
PM10
66.24ppb
O3
0.37ppb
SO2
8.07ppb
NO2
0.31ppm
CO
AQI 100
Moderate
20.50μg/m³
PM2.5
41.01μg/m³
PM10
70.38ppb
O3
0.42ppb
SO2
8.72ppb
NO2
0.31ppm
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 10:00:00 on 2025-06-05.
In the last 24 hours, the best air quality in Southbury, Connecticut was observed at 05:00:00 on 2025-06-06.
As of now, the AQI in Southbury, Connecticut is 100, indicating Moderate conditions.
Southbury, Connecticut air has the highest levels of O3.
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 18.096 μg/m3.
The PM10 concentration in Southbury, Connecticut is 67.312 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Southbury, Connecticut is 0.338 ppm.
Currently, Southbury, Connecticut has a sulfur dioxide (SO2) concentration of 0.546 ppb.
The current ozone (O3) level in Southbury, Connecticut at the moment is 69.612 ppm.
Nitrogen dioxide (NO2) level in Southbury, Connecticut at the moment is 8.441 ppb.
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