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)
43
Good
Montville, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.54 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.01 μg/m³
0
55
155
255
425
605+
46.21 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
3.21 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Montville, Connecticut
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AQI 43
Good
4.54μg/m³
PM2.5
17.12μg/m³
PM10
45.91ppb
O3
0.19ppb
SO2
3.72ppb
NO2
0.23ppm
CO
AQI 43
Good
4.27μg/m³
PM2.5
9.92μg/m³
PM10
46.08ppb
O3
0.29ppb
SO2
3.07ppb
NO2
0.22ppm
CO
AQI 43
Good
4.65μg/m³
PM2.5
9.39μg/m³
PM10
46.10ppb
O3
0.29ppb
SO2
3.13ppb
NO2
0.22ppm
CO
AQI 43
Good
4.69μg/m³
PM2.5
9.03μg/m³
PM10
46.01ppb
O3
0.30ppb
SO2
3.08ppb
NO2
0.22ppm
CO
AQI 43
Good
4.99μg/m³
PM2.5
11.04μg/m³
PM10
46.31ppb
O3
0.20ppb
SO2
3.57ppb
NO2
0.22ppm
CO
AQI 43
Good
4.69μg/m³
PM2.5
9.03μg/m³
PM10
46.01ppb
O3
0.30ppb
SO2
3.08ppb
NO2
0.22ppm
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 09:00:00 on 2026-03-29.
In the last 24 hours, the best air quality in Montville, Connecticut was observed at 02:00:00 on 2026-03-29.
As of now, the AQI in Montville, Connecticut is 43, indicating Good conditions.
Montville, Connecticut air has the highest levels of O3.
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 4.537 μg/m3.
The PM10 concentration in Montville, Connecticut is 10.014 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Montville, Connecticut is 0.223 ppm.
Currently, Montville, Connecticut has a sulfur dioxide (SO2) concentration of 0.281 ppb.
The current ozone (O3) level in Montville, Connecticut at the moment is 46.21 ppm.
Nitrogen dioxide (NO2) level in Montville, Connecticut at the moment is 3.214 ppb.
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