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
10.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.07 μg/m³
0
55
155
255
425
605+
44.01 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
7.02 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Montville, Connecticut
Montville, Connecticut
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AQI 44
Good
7.73μg/m³
PM2.5
28.25μg/m³
PM10
37.27ppb
O3
0.22ppb
SO2
4.10ppb
NO2
0.18ppm
CO
AQI 52
Moderate
10.28μg/m³
PM2.5
21.99μg/m³
PM10
38.48ppb
O3
0.29ppb
SO2
6.80ppb
NO2
0.18ppm
CO
AQI 54
Moderate
10.72μg/m³
PM2.5
17.13μg/m³
PM10
39.94ppb
O3
0.28ppb
SO2
7.43ppb
NO2
0.19ppm
CO
AQI 54
Moderate
10.88μg/m³
PM2.5
16.11μg/m³
PM10
39.99ppb
O3
0.28ppb
SO2
7.58ppb
NO2
0.19ppm
CO
AQI 52
Moderate
9.68μg/m³
PM2.5
42.55μg/m³
PM10
47.52ppb
O3
0.27ppb
SO2
7.24ppb
NO2
0.18ppm
CO
AQI 54
Moderate
10.88μg/m³
PM2.5
16.11μg/m³
PM10
39.99ppb
O3
0.28ppb
SO2
7.58ppb
NO2
0.19ppm
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 06:00:00 on 2026-06-29.
In the last 24 hours, the best air quality in Montville, Connecticut was observed at 01:00:00 on 2026-06-29.
As of now, the AQI in Montville, Connecticut is 52, indicating Moderate 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 10.349 μg/m3.
The PM10 concentration in Montville, Connecticut is 19.07 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Montville, Connecticut is 0.182 ppm.
Currently, Montville, Connecticut has a sulfur dioxide (SO2) concentration of 0.24 ppb.
The current ozone (O3) level in Montville, Connecticut at the moment is 44.009 ppm.
Nitrogen dioxide (NO2) level in Montville, Connecticut at the moment is 7.021 ppb.
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