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)
18
Good
Ridgefield, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.19 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.79 μg/m³
0
55
155
255
425
605+
19.25 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
6.13 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Ridgefield, Connecticut
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AQI 22
Good
3.05μg/m³
PM2.5
11.40μg/m³
PM10
23.53ppb
O3
0.71ppb
SO2
7.09ppb
NO2
0.30ppm
CO
AQI 19
Good
3.24μg/m³
PM2.5
13.78μg/m³
PM10
20.78ppb
O3
0.70ppb
SO2
6.23ppb
NO2
0.30ppm
CO
AQI 27
Good
5.00μg/m³
PM2.5
9.33μg/m³
PM10
20.98ppb
O3
0.53ppb
SO2
7.00ppb
NO2
0.28ppm
CO
AQI 27
Good
5.09μg/m³
PM2.5
9.02μg/m³
PM10
21.03ppb
O3
0.52ppb
SO2
7.05ppb
NO2
0.28ppm
CO
AQI 22
Good
3.73μg/m³
PM2.5
12.26μg/m³
PM10
21.84ppb
O3
0.58ppb
SO2
7.34ppb
NO2
0.30ppm
CO
AQI 26
Good
3.03μg/m³
PM2.5
13.24μg/m³
PM10
27.74ppb
O3
0.91ppb
SO2
7.10ppb
NO2
0.30ppm
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 09:00:00, 2026-11-12.
The best air quality in Ridgefield, Connecticut was observed at 11:00:00 on 2026-11-12.
The air quality in Ridgefield, Connecticut right now is Good, with an AQI of 18.
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 3.192 μg/m3.
Ridgefield, Connecticut currently has a PM10 concentration of 10.789 μg/m3.
The current carbon monoxide (CO) level in Ridgefield, Connecticut is 0.293 ppm.
The current sulfur dioxide (SO2) concentration in Ridgefield, Connecticut is 0.698 ppb.
Ridgefield, Connecticut currently has an ozone (O3) concentration of 19.246 ppm.
The current level of nitrogen dioxide (NO2) in Ridgefield, Connecticut is 6.131 ppb.
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