Stay updated with real-time air quality in Windham, 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)
35
Good
Windham, Connecticut
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
4.92 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
24.37 μg/m³
0
55
155
255
425
605+
37.53 ppb
0
55
71
86
201
201+
0.30 ppb
0
36
76
186
605
1005+
3.95 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Windham, Connecticut
Windham, Connecticut
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AQI 28
Good
3.97μg/m³
PM2.5
15.57μg/m³
PM10
30.37ppb
O3
0.15ppb
SO2
7.14ppb
NO2
0.25ppm
CO
AQI 27
Good
4.01μg/m³
PM2.5
15.71μg/m³
PM10
28.93ppb
O3
0.15ppb
SO2
7.48ppb
NO2
0.25ppm
CO
AQI 22
Good
3.85μg/m³
PM2.5
15.01μg/m³
PM10
16.54ppb
O3
0.16ppb
SO2
5.83ppb
NO2
0.24ppm
CO
AQI 22
Good
4.14μg/m³
PM2.5
12.66μg/m³
PM10
21.38ppb
O3
0.16ppb
SO2
7.42ppb
NO2
0.25ppm
CO
AQI 22
Good
4.03μg/m³
PM2.5
21.48μg/m³
PM10
16.79ppb
O3
0.16ppb
SO2
4.50ppb
NO2
0.24ppm
CO
AQI 33
Good
6.25μg/m³
PM2.5
19.93μg/m³
PM10
16.39ppb
O3
0.16ppb
SO2
5.60ppb
NO2
0.24ppm
CO
Air quality and pollutant data for Connecticut, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Windham, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Windham, Connecticut was at its worst at 11:00:00 on 2025-09-11.
In the last 24 hours, the best air quality in Windham, Connecticut was observed at 02:00:00 on 2025-09-11.
As of now, the AQI in Windham, Connecticut is 27, indicating Good conditions.
Windham, Connecticut air has the highest levels of PM2.5.
Poor air quality in Windham, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Windham, Connecticut are currently 4.691 μg/m3.
The PM10 concentration in Windham, Connecticut is 19.425 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Windham, Connecticut is 0.304 ppm.
Currently, Windham, Connecticut has a sulfur dioxide (SO2) concentration of 0.235 ppb.
The current ozone (O3) level in Windham, Connecticut at the moment is 26.529 ppm.
Nitrogen dioxide (NO2) level in Windham, Connecticut at the moment is 8.696 ppb.
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