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)
28
Good
Montville, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
4.62 μg/m³
0
55
155
255
425
605+
30.48 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
3.06 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Montville, Connecticut
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AQI 21
Good
2.71μg/m³
PM2.5
15.05μg/m³
PM10
22.64ppb
O3
0.20ppb
SO2
2.90ppb
NO2
0.16ppm
CO
AQI 21
Good
2.17μg/m³
PM2.5
5.58μg/m³
PM10
22.83ppb
O3
0.28ppb
SO2
3.00ppb
NO2
0.17ppm
CO
AQI 20
Good
2.15μg/m³
PM2.5
4.32μg/m³
PM10
21.51ppb
O3
0.27ppb
SO2
2.92ppb
NO2
0.16ppm
CO
AQI 19
Good
2.10μg/m³
PM2.5
4.03μg/m³
PM10
21.16ppb
O3
0.27ppb
SO2
2.93ppb
NO2
0.16ppm
CO
AQI 21
Good
2.55μg/m³
PM2.5
9.80μg/m³
PM10
23.35ppb
O3
0.20ppb
SO2
3.50ppb
NO2
0.15ppm
CO
AQI 19
Good
2.10μg/m³
PM2.5
4.03μg/m³
PM10
21.16ppb
O3
0.27ppb
SO2
2.93ppb
NO2
0.16ppm
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 04:00:00 on 2026-02-11.
In the last 24 hours, the best air quality in Montville, Connecticut was observed at 04:00:00 on 2026-02-12.
As of now, the AQI in Montville, Connecticut is 25, 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 2.538 μg/m3.
The PM10 concentration in Montville, Connecticut is 4.902 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Montville, Connecticut is 0.14 ppm.
Currently, Montville, Connecticut has a sulfur dioxide (SO2) concentration of 0.21 ppb.
The current ozone (O3) level in Montville, Connecticut at the moment is 27.283 ppm.
Nitrogen dioxide (NO2) level in Montville, Connecticut at the moment is 3.158 ppb.
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