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)
27
Good
New Fairfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.92 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.93 μg/m³
0
55
155
255
425
605+
26.76 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
9.34 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
New Fairfield, Connecticut
New Fairfield, Connecticut
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AQI 69
Moderate
18.70μg/m³
PM2.5
29.43μg/m³
PM10
6.67ppb
O3
0.38ppb
SO2
17.62ppb
NO2
0.31ppm
CO
AQI 71
Moderate
20.16μg/m³
PM2.5
29.03μg/m³
PM10
6.77ppb
O3
0.39ppb
SO2
17.18ppb
NO2
0.31ppm
CO
AQI 58
Moderate
13.04μg/m³
PM2.5
50.44μg/m³
PM10
7.58ppb
O3
0.40ppb
SO2
24.37ppb
NO2
0.31ppm
CO
AQI 69
Moderate
19.42μg/m³
PM2.5
29.23μg/m³
PM10
6.71ppb
O3
0.38ppb
SO2
17.33ppb
NO2
0.31ppm
CO
AQI 44
Good
7.74μg/m³
PM2.5
34.57μg/m³
PM10
6.47ppb
O3
0.38ppb
SO2
20.37ppb
NO2
0.29ppm
CO
AQI 60
Moderate
13.98μg/m³
PM2.5
43.73μg/m³
PM10
8.48ppb
O3
0.42ppb
SO2
22.16ppb
NO2
0.31ppm
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 06:00:00 on 2025-11-03.
In the last 24 hrs, the best air quality in New Fairfield, Connecticut was observed at 06:00:00 on 2025-11-02.
The current air quality in New Fairfield, Connecticut is 67, categorized as Moderate based on real-time data.
The most common pollutant in New Fairfield, Connecticut is PM2.5.
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 18.056 μg/m3.
The current PM10 concentration at New Fairfield, Connecticut is 31.421 μg/m3.
The current carbon monoxide (CO) concentration at New Fairfield, Connecticut is 0.304 ppm.
The current sulfur dioxide (SO2) concentration at New Fairfield, Connecticut is 0.383 ppb.
The current ozone (O3) concentration at New Fairfield, Connecticut is 7.672 ppm.
The current nitrogen dioxide (NO2) concentration at New Fairfield, Connecticut is 17.285 ppb.
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