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)
27
Good
Montville, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.04 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.98 μg/m³
0
55
155
255
425
605+
28.73 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
4.42 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Montville, Connecticut
Montville, Connecticut
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AQI 22
Good
4.09μg/m³
PM2.5
19.21μg/m³
PM10
19.72ppb
O3
0.23ppb
SO2
6.36ppb
NO2
0.28ppm
CO
AQI 22
Good
3.94μg/m³
PM2.5
11.45μg/m³
PM10
21.74ppb
O3
0.28ppb
SO2
6.33ppb
NO2
0.28ppm
CO
AQI 22
Good
4.35μg/m³
PM2.5
11.35μg/m³
PM10
22.70ppb
O3
0.25ppb
SO2
6.24ppb
NO2
0.28ppm
CO
AQI 22
Good
4.39μg/m³
PM2.5
11.03μg/m³
PM10
22.97ppb
O3
0.24ppb
SO2
6.22ppb
NO2
0.28ppm
CO
AQI 27
Good
4.91μg/m³
PM2.5
21.84μg/m³
PM10
21.14ppb
O3
0.28ppb
SO2
7.03ppb
NO2
0.28ppm
CO
AQI 22
Good
4.39μg/m³
PM2.5
11.03μg/m³
PM10
22.97ppb
O3
0.24ppb
SO2
6.22ppb
NO2
0.28ppm
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 01:00:00 on 2026-08-10.
In the last 24 hours, the best air quality in Montville, Connecticut was observed at 02:00:00 on 2026-08-10.
As of now, the AQI in Montville, Connecticut is 22, 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 4.235 μg/m3.
The PM10 concentration in Montville, Connecticut is 11.982 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Montville, Connecticut is 0.277 ppm.
Currently, Montville, Connecticut has a sulfur dioxide (SO2) concentration of 0.262 ppb.
The current ozone (O3) level in Montville, Connecticut at the moment is 22.13 ppm.
Nitrogen dioxide (NO2) level in Montville, Connecticut at the moment is 6.242 ppb.
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