Stay updated with real-time air quality in Canton, Massachusetts 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)
40
Good
Canton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.19 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.29 μg/m³
0
55
155
255
425
605+
43.13 ppb
0
55
71
86
201
201+
0.51 ppb
0
36
76
186
605
1005+
1.73 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Canton, Massachusetts
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AQI 41
Good
4.37μg/m³
PM2.5
18.86μg/m³
PM10
43.88ppb
O3
0.40ppb
SO2
3.14ppb
NO2
0.19ppm
CO
AQI 41
Good
4.25μg/m³
PM2.5
16.43μg/m³
PM10
43.58ppb
O3
0.49ppb
SO2
2.25ppb
NO2
0.17ppm
CO
AQI 40
Good
4.13μg/m³
PM2.5
15.33μg/m³
PM10
43.20ppb
O3
0.55ppb
SO2
2.31ppb
NO2
0.16ppm
CO
AQI 41
Good
4.19μg/m³
PM2.5
16.23μg/m³
PM10
43.75ppb
O3
0.50ppb
SO2
2.22ppb
NO2
0.17ppm
CO
AQI 41
Good
4.28μg/m³
PM2.5
14.40μg/m³
PM10
44.09ppb
O3
0.40ppb
SO2
2.34ppb
NO2
0.19ppm
CO
AQI 40
Good
4.20μg/m³
PM2.5
15.62μg/m³
PM10
43.29ppb
O3
0.53ppb
SO2
2.41ppb
NO2
0.17ppm
CO
The air quality data for Massachusetts, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Canton, Massachusetts are available every hour.
Canton, Massachusetts experienced its worst air quality at 09:00:00, 2026-03-29.
The best air quality in Canton, Massachusetts was observed at 03:00:00 on 2026-03-29.
The air quality in Canton, Massachusetts right now is Good, with an AQI of 40.
In Canton, Massachusetts, O3 is the most frequently found pollutant.
When air quality in Canton, Massachusetts is compromised, staying indoors and wearing a mask can reduce health risks.
Canton, Massachusetts currently has a PM2.5 concentration of 4.188 μg/m3.
Canton, Massachusetts currently has a PM10 concentration of 15.29 μg/m3.
The current carbon monoxide (CO) level in Canton, Massachusetts is 0.168 ppm.
The current sulfur dioxide (SO2) concentration in Canton, Massachusetts is 0.512 ppb.
Canton, Massachusetts currently has an ozone (O3) concentration of 43.128 ppm.
The current level of nitrogen dioxide (NO2) in Canton, Massachusetts is 1.734 ppb.
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