Stay updated with real-time air quality in Montville, 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)
52
Moderate
Montville, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.86 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.79 μg/m³
0
55
155
255
425
605+
20.51 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
11.43 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Montville, Connecticut
Montville, Connecticut
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AQI 56
Moderate
12.19μg/m³
PM2.5
32.79μg/m³
PM10
15.33ppb
O3
0.41ppb
SO2
22.31ppb
NO2
0.41ppm
CO
AQI 38
Good
7.46μg/m³
PM2.5
16.92μg/m³
PM10
25.59ppb
O3
0.42ppb
SO2
21.84ppb
NO2
0.42ppm
CO
AQI 44
Good
7.66μg/m³
PM2.5
12.49μg/m³
PM10
24.24ppb
O3
0.41ppb
SO2
21.52ppb
NO2
0.41ppm
CO
AQI 44
Good
7.50μg/m³
PM2.5
11.12μg/m³
PM10
24.39ppb
O3
0.42ppb
SO2
21.25ppb
NO2
0.41ppm
CO
AQI 56
Moderate
12.33μg/m³
PM2.5
23.81μg/m³
PM10
16.00ppb
O3
0.32ppb
SO2
23.09ppb
NO2
0.40ppm
CO
AQI 44
Good
7.50μg/m³
PM2.5
11.12μg/m³
PM10
24.39ppb
O3
0.42ppb
SO2
21.25ppb
NO2
0.41ppm
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 Montville, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Montville, Connecticut was at its worst at 02:00:00 on 2025-12-28.
In the last 24 hours, the best air quality in Montville, Connecticut was observed at 10:00:00 on 2025-12-28.
As of now, the AQI in Montville, Connecticut is 44, indicating Good conditions.
Montville, Connecticut air has the highest levels of PM2.5.
Poor air quality in Montville, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Montville, Connecticut are currently 7.965 μg/m3.
The PM10 concentration in Montville, Connecticut is 15.826 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Montville, Connecticut is 0.407 ppm.
Currently, Montville, Connecticut has a sulfur dioxide (SO2) concentration of 0.411 ppb.
The current ozone (O3) level in Montville, Connecticut at the moment is 24.083 ppm.
Nitrogen dioxide (NO2) level in Montville, Connecticut at the moment is 22.133 ppb.
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