Stay updated with real-time air quality in Ridgefield, 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)
22
Good
Ridgefield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.79 μg/m³
0
55
155
255
425
605+
14.71 ppb
0
55
71
86
201
201+
0.63 ppb
0
36
76
186
605
1005+
12.84 ppb
0
54
101
361
1250
2050+
0.45 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Ridgefield, Connecticut
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AQI 22
Good
4.05μg/m³
PM2.5
11.58μg/m³
PM10
10.20ppb
O3
0.67ppb
SO2
14.04ppb
NO2
0.46ppm
CO
AQI 22
Good
3.70μg/m³
PM2.5
11.63μg/m³
PM10
18.86ppb
O3
0.66ppb
SO2
14.27ppb
NO2
0.46ppm
CO
AQI 33
Good
6.03μg/m³
PM2.5
16.10μg/m³
PM10
21.92ppb
O3
0.56ppb
SO2
14.71ppb
NO2
0.42ppm
CO
AQI 33
Good
6.19μg/m³
PM2.5
16.00μg/m³
PM10
22.00ppb
O3
0.56ppb
SO2
14.65ppb
NO2
0.41ppm
CO
AQI 22
Good
4.43μg/m³
PM2.5
12.99μg/m³
PM10
23.48ppb
O3
0.66ppb
SO2
14.70ppb
NO2
0.46ppm
CO
AQI 16
Good
3.21μg/m³
PM2.5
12.08μg/m³
PM10
9.71ppb
O3
0.72ppb
SO2
14.93ppb
NO2
0.49ppm
CO
The air quality data for Connecticut, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Ridgefield, Connecticut are available every hour.
Ridgefield, Connecticut experienced its worst air quality at 05:00:00, 2026-10-08.
The best air quality in Ridgefield, Connecticut was observed at 03:00:00 on 2026-10-09.
The air quality in Ridgefield, Connecticut right now is Good, with an AQI of 22.
In Ridgefield, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in Ridgefield, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Ridgefield, Connecticut currently has a PM2.5 concentration of 3.946 μg/m3.
Ridgefield, Connecticut currently has a PM10 concentration of 15.791 μg/m3.
The current carbon monoxide (CO) level in Ridgefield, Connecticut is 0.448 ppm.
The current sulfur dioxide (SO2) concentration in Ridgefield, Connecticut is 0.634 ppb.
Ridgefield, Connecticut currently has an ozone (O3) concentration of 14.708 ppm.
The current level of nitrogen dioxide (NO2) in Ridgefield, Connecticut is 12.84 ppb.
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