Stay updated with real-time air quality in Weston, 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)
49
Good
Weston, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.38 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.09 μg/m³
0
55
155
255
425
605+
47.47 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
3.85 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Weston, Connecticut
Weston, Connecticut
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AQI 54
Moderate
11.24μg/m³
PM2.5
22.95μg/m³
PM10
31.33ppb
O3
0.52ppb
SO2
5.40ppb
NO2
0.24ppm
CO
AQI 52
Moderate
10.33μg/m³
PM2.5
52.79μg/m³
PM10
35.08ppb
O3
0.47ppb
SO2
4.78ppb
NO2
0.23ppm
CO
AQI 52
Moderate
10.42μg/m³
PM2.5
48.80μg/m³
PM10
35.08ppb
O3
0.46ppb
SO2
4.99ppb
NO2
0.23ppm
CO
AQI 52
Moderate
9.77μg/m³
PM2.5
35.75μg/m³
PM10
30.82ppb
O3
0.57ppb
SO2
5.29ppb
NO2
0.24ppm
CO
AQI 54
Moderate
11.49μg/m³
PM2.5
34.37μg/m³
PM10
37.75ppb
O3
0.36ppb
SO2
5.28ppb
NO2
0.23ppm
CO
AQI 44
Good
8.34μg/m³
PM2.5
35.82μg/m³
PM10
30.43ppb
O3
0.58ppb
SO2
5.20ppb
NO2
0.24ppm
CO
Air quality measurements for Connecticut, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Weston, Connecticut is updated on an hourly basis.
The worst air quality in Weston, Connecticut was recorded at 04:00:00 on 2026-06-29.
The best air quality in Weston, Connecticut was recorded at 10:00:00 on 2026-06-29.
The real-time air quality index in Weston, Connecticut is 49, currently categorized as Good.
The most common pollutant in Weston, Connecticut is PM2.5.
If the air quality in Weston, Connecticut is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Weston, Connecticut at present are 9.376 μg/m3.
The current PM10 levels in Weston, Connecticut are 38.092 μg/m3.
The current carbon monoxide (CO) level in Weston, Connecticut is 0.227 ppm.
The current sulfur dioxide (SO2) levels in Weston, Connecticut are 0.465 ppb.
The current ozone (O3) levels at Weston, Connecticut is 47.469 ppm.
The current nitrogen dioxide (NO2) levels at Weston, Connecticut is 3.848 ppb.
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