Stay updated with real-time air quality in Wallingford, 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)
31
Good
Wallingford, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.04 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.32 μg/m³
0
55
155
255
425
605+
34.48 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
7.46 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Wallingford, Connecticut
Wallingford, Connecticut
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AQI 35
Good
3.88μg/m³
PM2.5
10.91μg/m³
PM10
37.77ppb
O3
0.36ppb
SO2
4.64ppb
NO2
0.29ppm
CO
AQI 31
Good
3.63μg/m³
PM2.5
12.53μg/m³
PM10
34.22ppb
O3
0.25ppb
SO2
6.04ppb
NO2
0.27ppm
CO
AQI 30
Good
3.83μg/m³
PM2.5
11.61μg/m³
PM10
32.20ppb
O3
0.27ppb
SO2
6.39ppb
NO2
0.26ppm
CO
AQI 34
Good
3.88μg/m³
PM2.5
10.66μg/m³
PM10
36.70ppb
O3
0.35ppb
SO2
4.64ppb
NO2
0.29ppm
CO
AQI 35
Good
3.63μg/m³
PM2.5
13.99μg/m³
PM10
37.60ppb
O3
0.30ppb
SO2
3.43ppb
NO2
0.28ppm
CO
AQI 27
Good
3.81μg/m³
PM2.5
10.44μg/m³
PM10
29.05ppb
O3
0.23ppb
SO2
5.75ppb
NO2
0.26ppm
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 Wallingford, Connecticut are available every hour.
Wallingford, Connecticut experienced its worst air quality at 11:00:00, 2026-10-07.
The best air quality in Wallingford, Connecticut was observed at 05:00:00 on 2026-10-07.
The air quality in Wallingford, Connecticut right now is Good, with an AQI of 31.
In Wallingford, Connecticut, O3 is the most frequently found pollutant.
When air quality in Wallingford, Connecticut is compromised, staying indoors and wearing a mask can reduce health risks.
Wallingford, Connecticut currently has a PM2.5 concentration of 3.625 μg/m3.
Wallingford, Connecticut currently has a PM10 concentration of 12.585 μg/m3.
The current carbon monoxide (CO) level in Wallingford, Connecticut is 0.272 ppm.
The current sulfur dioxide (SO2) concentration in Wallingford, Connecticut is 0.268 ppb.
Wallingford, Connecticut currently has an ozone (O3) concentration of 34.156 ppm.
The current level of nitrogen dioxide (NO2) in Wallingford, Connecticut is 6.789 ppb.
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