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)
28
Good
Weston, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.49 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.22 μg/m³
0
55
155
255
425
605+
29.91 ppb
0
55
71
86
201
201+
0.28 ppb
0
36
76
186
605
1005+
5.20 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Weston, Connecticut
Weston, Connecticut
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AQI 31
Good
3.00μg/m³
PM2.5
9.19μg/m³
PM10
33.60ppb
O3
0.57ppb
SO2
1.45ppb
NO2
0.10ppm
CO
AQI 32
Good
2.71μg/m³
PM2.5
7.71μg/m³
PM10
34.71ppb
O3
0.57ppb
SO2
1.32ppb
NO2
0.10ppm
CO
AQI 32
Good
2.76μg/m³
PM2.5
8.23μg/m³
PM10
34.54ppb
O3
0.56ppb
SO2
1.37ppb
NO2
0.10ppm
CO
AQI 31
Good
4.11μg/m³
PM2.5
20.31μg/m³
PM10
33.67ppb
O3
0.56ppb
SO2
2.11ppb
NO2
0.11ppm
CO
AQI 31
Good
2.50μg/m³
PM2.5
6.80μg/m³
PM10
33.88ppb
O3
0.58ppb
SO2
1.48ppb
NO2
0.10ppm
CO
AQI 31
Good
3.04μg/m³
PM2.5
9.19μg/m³
PM10
33.56ppb
O3
0.47ppb
SO2
1.52ppb
NO2
0.11ppm
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 05:00:00 on 2025-11-01.
The best air quality in Weston, Connecticut was recorded at 12:00:00 on 2025-10-31.
The real-time air quality index in Weston, Connecticut is 31, 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 3.096 μg/m3.
The current PM10 levels in Weston, Connecticut are 10.764 μg/m3.
The current carbon monoxide (CO) level in Weston, Connecticut is 0.118 ppm.
The current sulfur dioxide (SO2) levels in Weston, Connecticut are 0.431 ppb.
The current ozone (O3) levels at Weston, Connecticut is 33.273 ppm.
The current nitrogen dioxide (NO2) levels at Weston, Connecticut is 1.569 ppb.
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