Stay updated with real-time air quality in Wilton, 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)
33
Good
Wilton, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.97 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.82 μg/m³
0
55
155
255
425
605+
33.60 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
16.18 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Wilton, Connecticut
Wilton, Connecticut
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AQI 38
Good
7.12μg/m³
PM2.5
19.54μg/m³
PM10
33.17ppb
O3
0.55ppb
SO2
11.13ppb
NO2
0.23ppm
CO
AQI 33
Good
5.54μg/m³
PM2.5
16.04μg/m³
PM10
32.28ppb
O3
0.71ppb
SO2
19.76ppb
NO2
0.25ppm
CO
AQI 30
Good
4.48μg/m³
PM2.5
13.35μg/m³
PM10
32.06ppb
O3
0.62ppb
SO2
20.53ppb
NO2
0.25ppm
CO
AQI 38
Good
7.14μg/m³
PM2.5
21.73μg/m³
PM10
30.57ppb
O3
0.58ppb
SO2
9.38ppb
NO2
0.23ppm
CO
AQI 38
Good
7.08μg/m³
PM2.5
20.83μg/m³
PM10
31.10ppb
O3
0.58ppb
SO2
11.31ppb
NO2
0.23ppm
CO
AQI 30
Good
5.10μg/m³
PM2.5
14.95μg/m³
PM10
32.41ppb
O3
0.59ppb
SO2
14.54ppb
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 Wilton, Connecticut are available every hour.
Wilton, Connecticut experienced its worst air quality at 01:00:00, 2026-05-14.
The best air quality in Wilton, Connecticut was observed at 12:00:00 on 2026-05-14.
The air quality in Wilton, Connecticut right now is Good, with an AQI of 33.
In Wilton, Connecticut, PM2.5 is the most frequently found pollutant.
When air quality in Wilton, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Wilton, Connecticut currently has a PM2.5 concentration of 5.966 μg/m3.
Wilton, Connecticut currently has a PM10 concentration of 12.823 μg/m3.
The current carbon monoxide (CO) level in Wilton, Connecticut is 0.265 ppm.
The current sulfur dioxide (SO2) concentration in Wilton, Connecticut is 0.603 ppb.
Wilton, Connecticut currently has an ozone (O3) concentration of 33.602 ppm.
The current level of nitrogen dioxide (NO2) in Wilton, Connecticut is 16.18 ppb.
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