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)
33
Good
New Fairfield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.20 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.97 μg/m³
0
55
155
255
425
605+
31.01 ppb
0
55
71
86
201
201+
0.48 ppb
0
36
76
186
605
1005+
8.83 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
New Fairfield, Connecticut
New Fairfield, Connecticut
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AQI 38
Good
6.83μg/m³
PM2.5
13.23μg/m³
PM10
35.68ppb
O3
0.47ppb
SO2
11.42ppb
NO2
0.22ppm
CO
AQI 38
Good
7.09μg/m³
PM2.5
13.01μg/m³
PM10
36.95ppb
O3
0.47ppb
SO2
11.55ppb
NO2
0.21ppm
CO
AQI 25
Good
3.44μg/m³
PM2.5
7.89μg/m³
PM10
27.35ppb
O3
0.58ppb
SO2
11.54ppb
NO2
0.22ppm
CO
AQI 38
Good
7.02μg/m³
PM2.5
13.35μg/m³
PM10
36.63ppb
O3
0.47ppb
SO2
11.37ppb
NO2
0.22ppm
CO
AQI 27
Good
4.97μg/m³
PM2.5
12.47μg/m³
PM10
24.89ppb
O3
0.43ppb
SO2
11.32ppb
NO2
0.20ppm
CO
AQI 21
Good
3.32μg/m³
PM2.5
6.95μg/m³
PM10
22.96ppb
O3
0.59ppb
SO2
12.53ppb
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 10:00:00 on 2026-05-13.
In the last 24 hrs, the best air quality in New Fairfield, Connecticut was observed at 01:00:00 on 2026-05-13.
The current air quality in New Fairfield, Connecticut is 33, 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 6.203 μg/m3.
The current PM10 concentration at New Fairfield, Connecticut is 12.969 μg/m3.
The current carbon monoxide (CO) concentration at New Fairfield, Connecticut is 0.241 ppm.
The current sulfur dioxide (SO2) concentration at New Fairfield, Connecticut is 0.482 ppb.
The current ozone (O3) concentration at New Fairfield, Connecticut is 31.012 ppm.
The current nitrogen dioxide (NO2) concentration at New Fairfield, Connecticut is 8.833 ppb.
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