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)
44
Good
Southbury, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.64 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
21.57 μg/m³
0
55
155
255
425
605+
44.20 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
2.71 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Southbury, Connecticut
Southbury, Connecticut
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AQI 44
Good
8.39μg/m³
PM2.5
32.05μg/m³
PM10
43.39ppb
O3
0.21ppb
SO2
5.03ppb
NO2
0.22ppm
CO
AQI 54
Moderate
8.42μg/m³
PM2.5
30.37μg/m³
PM10
56.07ppb
O3
0.22ppb
SO2
3.12ppb
NO2
0.23ppm
CO
AQI 42
Good
7.48μg/m³
PM2.5
15.27μg/m³
PM10
44.91ppb
O3
0.20ppb
SO2
5.20ppb
NO2
0.23ppm
CO
AQI 49
Good
8.56μg/m³
PM2.5
18.07μg/m³
PM10
52.36ppb
O3
0.24ppb
SO2
3.67ppb
NO2
0.24ppm
CO
AQI 44
Good
8.42μg/m³
PM2.5
32.22μg/m³
PM10
44.82ppb
O3
0.20ppb
SO2
5.38ppb
NO2
0.21ppm
CO
AQI 44
Good
7.60μg/m³
PM2.5
15.01μg/m³
PM10
44.70ppb
O3
0.20ppb
SO2
5.29ppb
NO2
0.24ppm
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 12:00:00 on 2025-09-13.
In the last 24 hours, the best air quality in Southbury, Connecticut was observed at 12:00:00 on 2025-09-13.
As of now, the AQI in Southbury, Connecticut is 44, indicating Good 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 7.645 μg/m3.
The PM10 concentration in Southbury, Connecticut is 21.567 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Southbury, Connecticut is 0.226 ppm.
Currently, Southbury, Connecticut has a sulfur dioxide (SO2) concentration of 0.205 ppb.
The current ozone (O3) level in Southbury, Connecticut at the moment is 44.198 ppm.
Nitrogen dioxide (NO2) level in Southbury, Connecticut at the moment is 2.711 ppb.
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