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)
43
Good
Somerset, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.95 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.33 μg/m³
0
55
155
255
425
605+
46.50 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
2.93 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Somerset, Massachusetts
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AQI 44
Good
3.99μg/m³
PM2.5
17.57μg/m³
PM10
46.71ppb
O3
0.35ppb
SO2
2.98ppb
NO2
0.23ppm
CO
AQI 43
Good
4.47μg/m³
PM2.5
19.84μg/m³
PM10
46.06ppb
O3
0.40ppb
SO2
2.90ppb
NO2
0.23ppm
CO
AQI 43
Good
4.43μg/m³
PM2.5
19.64μg/m³
PM10
46.14ppb
O3
0.39ppb
SO2
2.96ppb
NO2
0.23ppm
CO
AQI 44
Good
2.33μg/m³
PM2.5
7.28μg/m³
PM10
46.84ppb
O3
0.31ppb
SO2
3.01ppb
NO2
0.23ppm
CO
AQI 43
Good
4.48μg/m³
PM2.5
20.03μg/m³
PM10
46.20ppb
O3
0.35ppb
SO2
3.07ppb
NO2
0.23ppm
CO
AQI 43
Good
2.44μg/m³
PM2.5
10.11μg/m³
PM10
46.46ppb
O3
0.39ppb
SO2
2.73ppb
NO2
0.22ppm
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 10:00:00, 2026-03-29.
The best air quality in Somerset, Massachusetts was observed at 12:00:00 on 2026-03-29.
The air quality in Somerset, Massachusetts right now is Good, with an AQI of 43.
In Somerset, Massachusetts, O3 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 3.953 μg/m3.
Somerset, Massachusetts currently has a PM10 concentration of 17.33 μg/m3.
The current carbon monoxide (CO) level in Somerset, Massachusetts is 0.229 ppm.
The current sulfur dioxide (SO2) concentration in Somerset, Massachusetts is 0.372 ppb.
Somerset, Massachusetts currently has an ozone (O3) concentration of 46.497 ppm.
The current level of nitrogen dioxide (NO2) in Somerset, Massachusetts is 2.93 ppb.
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