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)
20
Good
Southbridge Town, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.63 μg/m³
0
55
155
255
425
605+
22.04 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
2.17 ppb
0
54
101
361
1250
2050+
0.22 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 22
Good
4.24μg/m³
PM2.5
20.28μg/m³
PM10
21.74ppb
O3
0.37ppb
SO2
1.89ppb
NO2
0.23ppm
CO
AQI 19
Good
3.15μg/m³
PM2.5
9.66μg/m³
PM10
20.96ppb
O3
0.31ppb
SO2
2.24ppb
NO2
0.22ppm
CO
AQI 19
Good
3.31μg/m³
PM2.5
8.72μg/m³
PM10
21.08ppb
O3
0.37ppb
SO2
1.90ppb
NO2
0.22ppm
CO
AQI 22
Good
4.30μg/m³
PM2.5
16.80μg/m³
PM10
21.02ppb
O3
0.35ppb
SO2
2.71ppb
NO2
0.21ppm
CO
AQI 22
Good
4.48μg/m³
PM2.5
18.47μg/m³
PM10
20.32ppb
O3
0.29ppb
SO2
4.54ppb
NO2
0.21ppm
CO
AQI 27
Good
4.89μg/m³
PM2.5
13.42μg/m³
PM10
19.27ppb
O3
0.18ppb
SO2
5.04ppb
NO2
0.26ppm
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 08:00:00 on 2026-11-12.
The best air quality in Southbridge Town, Massachusetts was recorded at 11:00:00 on 2026-11-12.
The real-time air quality index in Southbridge Town, Massachusetts is 20, 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 3.241 μg/m3.
The current PM10 levels in Southbridge Town, Massachusetts are 8.632 μg/m3.
The current carbon monoxide (CO) level in Southbridge Town, Massachusetts is 0.222 ppm.
The current sulfur dioxide (SO2) levels in Southbridge Town, Massachusetts are 0.4 ppb.
The current ozone (O3) levels at Southbridge Town, Massachusetts is 22.042 ppm.
The current nitrogen dioxide (NO2) levels at Southbridge Town, Massachusetts is 2.175 ppb.
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