Stay updated with real-time air quality in New Fairfield, 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)
42
Good
New Fairfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.58 μg/m³
0
55
155
255
425
605+
45.46 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
3.55 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
New Fairfield, Connecticut
Scroll To Air Quality MapLoading...
AQI 43
Good
6.48μg/m³
PM2.5
13.56μg/m³
PM10
46.26ppb
O3
0.29ppb
SO2
3.52ppb
NO2
0.23ppm
CO
AQI 44
Good
6.69μg/m³
PM2.5
13.02μg/m³
PM10
46.97ppb
O3
0.28ppb
SO2
3.58ppb
NO2
0.24ppm
CO
AQI 40
Good
5.43μg/m³
PM2.5
13.90μg/m³
PM10
43.42ppb
O3
0.27ppb
SO2
4.24ppb
NO2
0.24ppm
CO
AQI 44
Good
6.57μg/m³
PM2.5
13.33μg/m³
PM10
46.67ppb
O3
0.29ppb
SO2
3.52ppb
NO2
0.23ppm
CO
AQI 43
Good
5.63μg/m³
PM2.5
13.20μg/m³
PM10
45.83ppb
O3
0.26ppb
SO2
4.56ppb
NO2
0.23ppm
CO
AQI 36
Good
5.23μg/m³
PM2.5
15.45μg/m³
PM10
38.89ppb
O3
0.28ppb
SO2
4.03ppb
NO2
0.24ppm
CO
Air quality data and pollutant measurements for Connecticut, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for New Fairfield, Connecticut is updated every hour.
The worst air quality in New Fairfield, Connecticut in the last 24 hours was observed at 11:00:00 on 2026-03-29.
In the last 24 hrs, the best air quality in New Fairfield, Connecticut was observed at 04:00:00 on 2026-03-29.
The current air quality in New Fairfield, Connecticut is 42, categorized as Good based on real-time data.
The most common pollutant in New Fairfield, Connecticut is O3.
If the air quality in New Fairfield, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at New Fairfield, Connecticut is 6.355 μg/m3.
The current PM10 concentration at New Fairfield, Connecticut is 13.583 μg/m3.
The current carbon monoxide (CO) concentration at New Fairfield, Connecticut is 0.234 ppm.
The current sulfur dioxide (SO2) concentration at New Fairfield, Connecticut is 0.283 ppb.
The current ozone (O3) concentration at New Fairfield, Connecticut is 45.459 ppm.
The current nitrogen dioxide (NO2) concentration at New Fairfield, Connecticut is 3.546 ppb.
All Rights Reserved © Ambee Inc. 2025