Stay updated with real-time air quality in Southbridge Town, 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)
19
Good
Southbridge Town, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
2.97 μg/m³
0
55
155
255
425
605+
21.18 ppb
0
55
71
86
201
201+
0.66 ppb
0
36
76
186
605
1005+
3.00 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Southbridge Town, Massachusetts
Southbridge Town, Massachusetts
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AQI 19
Good
1.13μg/m³
PM2.5
5.35μg/m³
PM10
21.28ppb
O3
0.66ppb
SO2
3.87ppb
NO2
0.24ppm
CO
AQI 19
Good
1.24μg/m³
PM2.5
4.37μg/m³
PM10
21.50ppb
O3
0.65ppb
SO2
2.98ppb
NO2
0.25ppm
CO
AQI 20
Good
1.11μg/m³
PM2.5
5.45μg/m³
PM10
21.62ppb
O3
0.65ppb
SO2
4.71ppb
NO2
0.25ppm
CO
AQI 19
Good
1.10μg/m³
PM2.5
5.45μg/m³
PM10
21.43ppb
O3
0.66ppb
SO2
5.75ppb
NO2
0.24ppm
CO
AQI 20
Good
1.14μg/m³
PM2.5
5.38μg/m³
PM10
22.07ppb
O3
0.69ppb
SO2
2.88ppb
NO2
0.21ppm
CO
AQI 20
Good
0.97μg/m³
PM2.5
3.98μg/m³
PM10
21.79ppb
O3
0.70ppb
SO2
4.91ppb
NO2
0.21ppm
CO
Air quality measurements for Massachusetts, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Southbridge Town, Massachusetts is updated on an hourly basis.
The worst air quality in Southbridge Town, Massachusetts was recorded at 03:00:00 on 2026-09-28.
The best air quality in Southbridge Town, Massachusetts was recorded at 10:00:00 on 2026-09-28.
The real-time air quality index in Southbridge Town, Massachusetts is 19, currently categorized as Good.
The most common pollutant in Southbridge Town, Massachusetts is O3.
If the air quality in Southbridge Town, Massachusetts is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Southbridge Town, Massachusetts at present are 1.232 μg/m3.
The current PM10 levels in Southbridge Town, Massachusetts are 2.968 μg/m3.
The current carbon monoxide (CO) level in Southbridge Town, Massachusetts is 0.249 ppm.
The current sulfur dioxide (SO2) levels in Southbridge Town, Massachusetts are 0.661 ppb.
The current ozone (O3) levels at Southbridge Town, Massachusetts is 21.185 ppm.
The current nitrogen dioxide (NO2) levels at Southbridge Town, Massachusetts is 3.002 ppb.
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