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
4.54 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.84 μg/m³
0
55
155
255
425
605+
22.89 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
8.09 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Montville, Connecticut
Montville, Connecticut
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AQI 29
Good
2.01μg/m³
PM2.5
6.07μg/m³
PM10
31.50ppb
O3
0.32ppb
SO2
2.45ppb
NO2
0.17ppm
CO
AQI 29
Good
1.95μg/m³
PM2.5
5.35μg/m³
PM10
30.50ppb
O3
0.34ppb
SO2
2.81ppb
NO2
0.17ppm
CO
AQI 28
Good
1.81μg/m³
PM2.5
4.18μg/m³
PM10
30.46ppb
O3
0.32ppb
SO2
2.66ppb
NO2
0.16ppm
CO
AQI 28
Good
1.80μg/m³
PM2.5
4.02μg/m³
PM10
30.46ppb
O3
0.32ppb
SO2
2.67ppb
NO2
0.17ppm
CO
AQI 29
Good
2.03μg/m³
PM2.5
5.18μg/m³
PM10
30.87ppb
O3
0.31ppb
SO2
2.54ppb
NO2
0.16ppm
CO
AQI 28
Good
1.80μg/m³
PM2.5
4.02μg/m³
PM10
30.46ppb
O3
0.32ppb
SO2
2.67ppb
NO2
0.17ppm
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 2025-11-01.
In the last 24 hours, the best air quality in Montville, Connecticut was observed at 06:00:00 on 2025-10-31.
As of now, the AQI in Montville, Connecticut is 28, 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 1.839 μg/m3.
The PM10 concentration in Montville, Connecticut is 4.532 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Montville, Connecticut is 0.164 ppm.
Currently, Montville, Connecticut has a sulfur dioxide (SO2) concentration of 0.323 ppb.
The current ozone (O3) level in Montville, Connecticut at the moment is 30.467 ppm.
Nitrogen dioxide (NO2) level in Montville, Connecticut at the moment is 2.634 ppb.
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