Stay updated with real-time air quality in Mansfield, 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)
34
Good
Mansfield, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.36 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.14 μg/m³
0
55
155
255
425
605+
37.30 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
5.57 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Mansfield, Massachusetts
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AQI 37
Good
4.15μg/m³
PM2.5
17.43μg/m³
PM10
40.43ppb
O3
0.38ppb
SO2
9.28ppb
NO2
0.25ppm
CO
AQI 37
Good
4.46μg/m³
PM2.5
20.01μg/m³
PM10
39.79ppb
O3
0.37ppb
SO2
9.24ppb
NO2
0.25ppm
CO
AQI 37
Good
4.46μg/m³
PM2.5
20.00μg/m³
PM10
39.83ppb
O3
0.34ppb
SO2
9.71ppb
NO2
0.26ppm
CO
AQI 37
Good
4.62μg/m³
PM2.5
18.55μg/m³
PM10
40.38ppb
O3
0.36ppb
SO2
9.84ppb
NO2
0.26ppm
CO
AQI 38
Good
4.36μg/m³
PM2.5
17.46μg/m³
PM10
41.00ppb
O3
0.41ppb
SO2
8.13ppb
NO2
0.24ppm
CO
AQI 38
Good
4.63μg/m³
PM2.5
20.37μg/m³
PM10
41.39ppb
O3
0.32ppb
SO2
10.01ppb
NO2
0.26ppm
CO
Air quality data and pollutant measurements for Massachusetts, 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 Mansfield, Massachusetts is updated every hour.
The worst air quality in Mansfield, Massachusetts in the last 24 hours was observed at 10:00:00 on 2026-05-13.
In the last 24 hrs, the best air quality in Mansfield, Massachusetts was observed at 02:00:00 on 2026-05-13.
The current air quality in Mansfield, Massachusetts is 34, categorized as Good based on real-time data.
The most common pollutant in Mansfield, Massachusetts is O3.
If the air quality in Mansfield, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Mansfield, Massachusetts is 3.363 μg/m3.
The current PM10 concentration at Mansfield, Massachusetts is 15.143 μg/m3.
The current carbon monoxide (CO) concentration at Mansfield, Massachusetts is 0.204 ppm.
The current sulfur dioxide (SO2) concentration at Mansfield, Massachusetts is 0.353 ppb.
The current ozone (O3) concentration at Mansfield, Massachusetts is 37.295 ppm.
The current nitrogen dioxide (NO2) concentration at Mansfield, Massachusetts is 5.57 ppb.
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