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)
26
Good
Ridgefield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.73 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.95 μg/m³
0
55
155
255
425
605+
27.89 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
19.53 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Ridgefield, Connecticut
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AQI 29
Good
2.64μg/m³
PM2.5
9.41μg/m³
PM10
30.93ppb
O3
0.33ppb
SO2
17.06ppb
NO2
0.22ppm
CO
AQI 30
Good
1.96μg/m³
PM2.5
6.79μg/m³
PM10
31.72ppb
O3
0.30ppb
SO2
12.34ppb
NO2
0.20ppm
CO
AQI 27
Good
1.99μg/m³
PM2.5
5.09μg/m³
PM10
28.80ppb
O3
0.28ppb
SO2
12.41ppb
NO2
0.18ppm
CO
AQI 27
Good
2.00μg/m³
PM2.5
5.01μg/m³
PM10
28.62ppb
O3
0.28ppb
SO2
12.44ppb
NO2
0.18ppm
CO
AQI 30
Good
1.87μg/m³
PM2.5
5.94μg/m³
PM10
31.76ppb
O3
0.30ppb
SO2
11.41ppb
NO2
0.20ppm
CO
AQI 29
Good
3.09μg/m³
PM2.5
9.84μg/m³
PM10
31.12ppb
O3
0.34ppb
SO2
17.16ppb
NO2
0.23ppm
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 03:00:00, 2025-12-04.
The best air quality in Ridgefield, Connecticut was observed at 10:00:00 on 2025-12-05.
The air quality in Ridgefield, Connecticut right now is Good, with an AQI of 26.
In Ridgefield, Connecticut, O3 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 2.728 μg/m3.
Ridgefield, Connecticut currently has a PM10 concentration of 11.946 μg/m3.
The current carbon monoxide (CO) level in Ridgefield, Connecticut is 0.251 ppm.
The current sulfur dioxide (SO2) concentration in Ridgefield, Connecticut is 0.282 ppb.
Ridgefield, Connecticut currently has an ozone (O3) concentration of 27.885 ppm.
The current level of nitrogen dioxide (NO2) in Ridgefield, Connecticut is 19.532 ppb.
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