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)
24
Good
Canton, Connecticut
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.50 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.07 μg/m³
0
55
155
255
425
605+
25.96 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
4.85 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Canton, Connecticut
Canton, Connecticut
Scroll To Air Quality MapLoading...
AQI 25
Good
3.28μg/m³
PM2.5
6.17μg/m³
PM10
27.22ppb
O3
0.32ppb
SO2
5.65ppb
NO2
0.22ppm
CO
AQI 25
Good
3.25μg/m³
PM2.5
8.27μg/m³
PM10
26.81ppb
O3
0.32ppb
SO2
4.70ppb
NO2
0.23ppm
CO
AQI 28
Good
3.29μg/m³
PM2.5
6.77μg/m³
PM10
30.10ppb
O3
0.33ppb
SO2
5.64ppb
NO2
0.23ppm
CO
AQI 22
Good
3.76μg/m³
PM2.5
7.60μg/m³
PM10
22.65ppb
O3
0.31ppb
SO2
5.92ppb
NO2
0.21ppm
CO
AQI 22
Good
3.79μg/m³
PM2.5
7.65μg/m³
PM10
22.80ppb
O3
0.32ppb
SO2
5.80ppb
NO2
0.21ppm
CO
AQI 34
Good
2.98μg/m³
PM2.5
10.59μg/m³
PM10
36.62ppb
O3
0.33ppb
SO2
5.72ppb
NO2
0.23ppm
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 09:00:00 on 2026-09-12.
In the last 24 hrs, the best air quality in Canton, Connecticut was observed at 05:00:00 on 2026-09-13.
The current air quality in Canton, Connecticut is 24, categorized as Good based on real-time data.
The most common pollutant in Canton, Connecticut is O3.
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 2.495 μg/m3.
The current PM10 concentration at Canton, Connecticut is 17.069 μg/m3.
The current carbon monoxide (CO) concentration at Canton, Connecticut is 0.234 ppm.
The current sulfur dioxide (SO2) concentration at Canton, Connecticut is 0.323 ppb.
The current ozone (O3) concentration at Canton, Connecticut is 25.961 ppm.
The current nitrogen dioxide (NO2) concentration at Canton, Connecticut is 4.853 ppb.
All Rights Reserved © Ambee Inc. 2025