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)
25
Good
Weston, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.82 μg/m³
0
55
155
255
425
605+
26.51 ppb
0
55
71
86
201
201+
0.16 ppb
0
36
76
186
605
1005+
2.93 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Weston, Connecticut
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AQI 23
Good
2.74μg/m³
PM2.5
13.86μg/m³
PM10
25.34ppb
O3
0.21ppb
SO2
4.53ppb
NO2
0.17ppm
CO
AQI 24
Good
2.60μg/m³
PM2.5
6.79μg/m³
PM10
25.57ppb
O3
0.21ppb
SO2
3.11ppb
NO2
0.16ppm
CO
AQI 23
Good
2.59μg/m³
PM2.5
7.26μg/m³
PM10
25.40ppb
O3
0.21ppb
SO2
3.32ppb
NO2
0.16ppm
CO
AQI 24
Good
2.73μg/m³
PM2.5
13.89μg/m³
PM10
26.45ppb
O3
0.22ppb
SO2
4.54ppb
NO2
0.17ppm
CO
AQI 23
Good
2.35μg/m³
PM2.5
5.47μg/m³
PM10
24.96ppb
O3
0.21ppb
SO2
4.57ppb
NO2
0.15ppm
CO
AQI 24
Good
2.87μg/m³
PM2.5
15.34μg/m³
PM10
26.47ppb
O3
0.22ppb
SO2
4.81ppb
NO2
0.17ppm
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 03:00:00 on 2026-02-11.
The best air quality in Weston, Connecticut was recorded at 03:00:00 on 2026-02-12.
The real-time air quality index in Weston, Connecticut is 25, currently categorized as Good.
The most common pollutant in Weston, Connecticut is O3.
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 2.548 μg/m3.
The current PM10 levels in Weston, Connecticut are 8.82 μg/m3.
The current carbon monoxide (CO) level in Weston, Connecticut is 0.14 ppm.
The current sulfur dioxide (SO2) levels in Weston, Connecticut are 0.161 ppb.
The current ozone (O3) levels at Weston, Connecticut is 26.51 ppm.
The current nitrogen dioxide (NO2) levels at Weston, Connecticut is 2.932 ppb.
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