Stay updated with real-time air quality in Cheshire, 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)
64
Moderate
Cheshire, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.27 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
67.45 μg/m³
0
55
155
255
425
605+
8.88 ppb
0
55
71
86
201
201+
0.20 ppb
0
36
76
186
605
1005+
25.52 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Cheshire, Connecticut
Cheshire, Connecticut
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AQI 64
Moderate
15.51μg/m³
PM2.5
67.59μg/m³
PM10
19.05ppb
O3
0.20ppb
SO2
24.07ppb
NO2
0.28ppm
CO
AQI 60
Moderate
13.79μg/m³
PM2.5
71.99μg/m³
PM10
21.09ppb
O3
0.21ppb
SO2
22.80ppb
NO2
0.28ppm
CO
AQI 56
Moderate
11.98μg/m³
PM2.5
54.81μg/m³
PM10
9.45ppb
O3
0.20ppb
SO2
22.68ppb
NO2
0.27ppm
CO
AQI 69
Moderate
18.92μg/m³
PM2.5
22.71μg/m³
PM10
8.92ppb
O3
0.19ppb
SO2
22.93ppb
NO2
0.32ppm
CO
AQI 69
Moderate
18.93μg/m³
PM2.5
23.36μg/m³
PM10
9.21ppb
O3
0.19ppb
SO2
23.64ppb
NO2
0.31ppm
CO
AQI 69
Moderate
19.19μg/m³
PM2.5
22.99μg/m³
PM10
8.37ppb
O3
0.19ppb
SO2
22.93ppb
NO2
0.32ppm
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 Cheshire, Connecticut is updated every hour for accuracy.
In the past 24 hours, the air quality in Cheshire, Connecticut was at its worst at 11:00:00 on 2025-12-28.
In the last 24 hours, the best air quality in Cheshire, Connecticut was observed at 09:00:00 on 2025-12-28.
As of now, the AQI in Cheshire, Connecticut is 64, indicating Moderate conditions.
Cheshire, Connecticut air has the highest levels of PM2.5.
Poor air quality in Cheshire, Connecticut means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Cheshire, Connecticut are currently 16.268 μg/m3.
The PM10 concentration in Cheshire, Connecticut is 67.452 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Cheshire, Connecticut is 0.278 ppm.
Currently, Cheshire, Connecticut has a sulfur dioxide (SO2) concentration of 0.196 ppb.
The current ozone (O3) level in Cheshire, Connecticut at the moment is 8.882 ppm.
Nitrogen dioxide (NO2) level in Cheshire, Connecticut at the moment is 25.525 ppb.
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