Stay updated with real-time air quality in Farmington, 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)
21
Good
Farmington, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
0.78 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.62 μg/m³
0
55
155
255
425
605+
22.56 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
3.85 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Farmington, Connecticut
Farmington, Connecticut
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AQI 20
Good
0.96μg/m³
PM2.5
2.36μg/m³
PM10
22.28ppb
O3
0.50ppb
SO2
4.19ppb
NO2
0.29ppm
CO
AQI 20
Good
0.91μg/m³
PM2.5
2.08μg/m³
PM10
22.22ppb
O3
0.51ppb
SO2
4.04ppb
NO2
0.29ppm
CO
AQI 20
Good
1.09μg/m³
PM2.5
2.22μg/m³
PM10
21.75ppb
O3
0.51ppb
SO2
3.34ppb
NO2
0.27ppm
CO
AQI 21
Good
1.12μg/m³
PM2.5
2.22μg/m³
PM10
23.41ppb
O3
0.51ppb
SO2
3.89ppb
NO2
0.27ppm
CO
AQI 21
Good
0.79μg/m³
PM2.5
3.59μg/m³
PM10
23.11ppb
O3
0.52ppb
SO2
3.47ppb
NO2
0.25ppm
CO
AQI 20
Good
0.90μg/m³
PM2.5
2.01μg/m³
PM10
22.44ppb
O3
0.51ppb
SO2
4.54ppb
NO2
0.30ppm
CO
Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Farmington, Connecticut is updated on an hourly basis.
The worst air quality in Farmington, Connecticut was recorded at 03:00:00 on 2026-09-28.
The best air quality in Farmington, Connecticut was recorded at 09:00:00 on 2026-09-28.
The real-time air quality index in Farmington, Connecticut is 21, currently categorized as Good.
The most common pollutant in Farmington, Connecticut is O3.
If the air quality in Farmington, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Farmington, Connecticut at present are 0.783 μg/m3.
The current PM10 levels in Farmington, Connecticut are 3.618 μg/m3.
The current carbon monoxide (CO) level in Farmington, Connecticut is 0.261 ppm.
The current sulfur dioxide (SO2) levels in Farmington, Connecticut are 0.516 ppb.
The current ozone (O3) levels at Farmington, Connecticut is 22.558 ppm.
The current nitrogen dioxide (NO2) levels at Farmington, Connecticut is 3.847 ppb.
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