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)
49
Good
New Fairfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.06 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.04 μg/m³
0
55
155
255
425
605+
43.39 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
6.30 ppb
0
54
101
361
1250
2050+
0.22 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 52
Moderate
9.71μg/m³
PM2.5
15.34μg/m³
PM10
44.89ppb
O3
0.42ppb
SO2
6.44ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.79μg/m³
PM2.5
14.03μg/m³
PM10
44.05ppb
O3
0.44ppb
SO2
6.68ppb
NO2
0.22ppm
CO
AQI 52
Moderate
9.81μg/m³
PM2.5
25.85μg/m³
PM10
34.02ppb
O3
0.51ppb
SO2
6.19ppb
NO2
0.22ppm
CO
AQI 52
Moderate
9.76μg/m³
PM2.5
14.93μg/m³
PM10
45.22ppb
O3
0.43ppb
SO2
6.56ppb
NO2
0.22ppm
CO
AQI 44
Good
8.34μg/m³
PM2.5
23.64μg/m³
PM10
38.23ppb
O3
0.43ppb
SO2
6.01ppb
NO2
0.20ppm
CO
AQI 36
Good
5.63μg/m³
PM2.5
16.84μg/m³
PM10
38.51ppb
O3
0.54ppb
SO2
6.25ppb
NO2
0.27ppm
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 03:00:00 on 2026-06-29.
In the last 24 hrs, the best air quality in New Fairfield, Connecticut was observed at 02:00:00 on 2026-06-29.
The current air quality in New Fairfield, Connecticut is 49, categorized as Good 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 9.062 μg/m3.
The current PM10 concentration at New Fairfield, Connecticut is 15.043 μg/m3.
The current carbon monoxide (CO) concentration at New Fairfield, Connecticut is 0.224 ppm.
The current sulfur dioxide (SO2) concentration at New Fairfield, Connecticut is 0.454 ppb.
The current ozone (O3) concentration at New Fairfield, Connecticut is 43.39 ppm.
The current nitrogen dioxide (NO2) concentration at New Fairfield, Connecticut is 6.301 ppb.
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