Stay updated with real-time air quality in Somerset, 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)
56
Moderate
Somerset, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
51.59 μg/m³
0
55
155
255
425
605+
40.50 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
4.83 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Somerset, Massachusetts
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AQI 56
Moderate
11.61μg/m³
PM2.5
51.71μg/m³
PM10
40.83ppb
O3
0.34ppb
SO2
5.15ppb
NO2
0.18ppm
CO
AQI 58
Moderate
12.71μg/m³
PM2.5
56.57μg/m³
PM10
40.04ppb
O3
0.40ppb
SO2
4.99ppb
NO2
0.17ppm
CO
AQI 58
Moderate
12.58μg/m³
PM2.5
55.94μg/m³
PM10
40.07ppb
O3
0.39ppb
SO2
5.00ppb
NO2
0.17ppm
CO
AQI 52
Moderate
9.95μg/m³
PM2.5
41.59μg/m³
PM10
44.56ppb
O3
0.37ppb
SO2
4.46ppb
NO2
0.17ppm
CO
AQI 52
Moderate
9.99μg/m³
PM2.5
41.46μg/m³
PM10
41.96ppb
O3
0.37ppb
SO2
4.97ppb
NO2
0.18ppm
CO
AQI 56
Moderate
12.15μg/m³
PM2.5
51.13μg/m³
PM10
38.53ppb
O3
0.50ppb
SO2
4.54ppb
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 Somerset, Massachusetts are available every hour.
Somerset, Massachusetts experienced its worst air quality at 06:00:00, 2026-06-29.
The best air quality in Somerset, Massachusetts was observed at 10:00:00 on 2026-06-29.
The air quality in Somerset, Massachusetts right now is Moderate, with an AQI of 56.
In Somerset, Massachusetts, PM2.5 is the most frequently found pollutant.
When air quality in Somerset, Massachusetts is compromised, staying indoors and wearing a mask can reduce health risks.
Somerset, Massachusetts currently has a PM2.5 concentration of 11.629 μg/m3.
Somerset, Massachusetts currently has a PM10 concentration of 51.593 μg/m3.
The current carbon monoxide (CO) level in Somerset, Massachusetts is 0.17 ppm.
The current sulfur dioxide (SO2) concentration in Somerset, Massachusetts is 0.364 ppb.
Somerset, Massachusetts currently has an ozone (O3) concentration of 40.502 ppm.
The current level of nitrogen dioxide (NO2) in Somerset, Massachusetts is 4.826 ppb.
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