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)
27
Good
Ridgefield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.39 μg/m³
0
55
155
255
425
605+
28.53 ppb
0
55
71
86
201
201+
0.58 ppb
0
36
76
186
605
1005+
5.53 ppb
0
54
101
361
1250
2050+
0.15 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Ridgefield, Connecticut
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AQI 27
Good
2.43μg/m³
PM2.5
11.36μg/m³
PM10
29.44ppb
O3
0.61ppb
SO2
5.35ppb
NO2
0.16ppm
CO
AQI 25
Good
1.91μg/m³
PM2.5
11.68μg/m³
PM10
26.71ppb
O3
0.59ppb
SO2
5.78ppb
NO2
0.15ppm
CO
AQI 31
Good
1.27μg/m³
PM2.5
7.30μg/m³
PM10
34.08ppb
O3
0.45ppb
SO2
5.65ppb
NO2
0.14ppm
CO
AQI 32
Good
1.20μg/m³
PM2.5
7.01μg/m³
PM10
34.93ppb
O3
0.44ppb
SO2
5.59ppb
NO2
0.14ppm
CO
AQI 24
Good
1.95μg/m³
PM2.5
10.23μg/m³
PM10
26.29ppb
O3
0.54ppb
SO2
6.64ppb
NO2
0.15ppm
CO
AQI 24
Good
1.41μg/m³
PM2.5
4.85μg/m³
PM10
25.80ppb
O3
0.76ppb
SO2
5.17ppb
NO2
0.16ppm
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 10:00:00, 2026-05-20.
The best air quality in Ridgefield, Connecticut was observed at 04:00:00 on 2026-05-21.
The air quality in Ridgefield, Connecticut right now is Good, with an AQI of 27.
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 2.343 μg/m3.
Ridgefield, Connecticut currently has a PM10 concentration of 12.39 μg/m3.
The current carbon monoxide (CO) level in Ridgefield, Connecticut is 0.146 ppm.
The current sulfur dioxide (SO2) concentration in Ridgefield, Connecticut is 0.58 ppb.
Ridgefield, Connecticut currently has an ozone (O3) concentration of 28.532 ppm.
The current level of nitrogen dioxide (NO2) in Ridgefield, Connecticut is 5.528 ppb.
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