Stay updated with real-time air quality in Canton, 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)
33
Good
Canton, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.23 μg/m³
0
55
155
255
425
605+
27.31 ppb
0
55
71
86
201
201+
0.24 ppb
0
36
76
186
605
1005+
11.06 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Canton, Connecticut
Canton, Connecticut
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AQI 33
Good
6.16μg/m³
PM2.5
17.38μg/m³
PM10
25.79ppb
O3
0.22ppb
SO2
15.19ppb
NO2
0.25ppm
CO
AQI 33
Good
6.11μg/m³
PM2.5
17.42μg/m³
PM10
27.59ppb
O3
0.21ppb
SO2
11.78ppb
NO2
0.23ppm
CO
AQI 33
Good
5.96μg/m³
PM2.5
13.48μg/m³
PM10
27.62ppb
O3
0.22ppb
SO2
13.67ppb
NO2
0.23ppm
CO
AQI 38
Good
7.02μg/m³
PM2.5
19.57μg/m³
PM10
28.71ppb
O3
0.22ppb
SO2
18.08ppb
NO2
0.29ppm
CO
AQI 38
Good
7.27μg/m³
PM2.5
20.16μg/m³
PM10
28.45ppb
O3
0.22ppb
SO2
18.92ppb
NO2
0.29ppm
CO
AQI 33
Good
6.18μg/m³
PM2.5
11.92μg/m³
PM10
26.17ppb
O3
0.22ppb
SO2
12.41ppb
NO2
0.25ppm
CO
Air quality data and pollutant measurements for Connecticut, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Canton, Connecticut is updated every hour.
The worst air quality in Canton, Connecticut in the last 24 hours was observed at 04:00:00 on 2026-05-13.
In the last 24 hrs, the best air quality in Canton, Connecticut was observed at 12:00:00 on 2026-05-14.
The current air quality in Canton, Connecticut is 33, categorized as Good based on real-time data.
The most common pollutant in Canton, Connecticut is PM2.5.
If the air quality in Canton, Connecticut is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Canton, Connecticut is 6.314 μg/m3.
The current PM10 concentration at Canton, Connecticut is 12.228 μg/m3.
The current carbon monoxide (CO) concentration at Canton, Connecticut is 0.169 ppm.
The current sulfur dioxide (SO2) concentration at Canton, Connecticut is 0.241 ppb.
The current ozone (O3) concentration at Canton, Connecticut is 27.311 ppm.
The current nitrogen dioxide (NO2) concentration at Canton, Connecticut is 11.061 ppb.
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