Stay updated with real-time air quality in Massachusetts, USA 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)
26
Good
Massachusetts, USA
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.02 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.42 μg/m³
0
55
155
255
425
605+
27.89 ppb
0
55
71
86
201
201+
0.29 ppb
0
36
76
186
605
1005+
2.37 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Massachusetts, USA
Massachusetts, USA
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 23
Good
1.50μg/m³
PM2.5
4.29μg/m³
PM10
25.11ppb
O3
0.33ppb
SO2
1.90ppb
NO2
0.16ppm
CO
AQI 26
Good
1.81μg/m³
PM2.5
7.02μg/m³
PM10
27.62ppb
O3
0.32ppb
SO2
2.66ppb
NO2
0.23ppm
CO
AQI 27
Good
3.00μg/m³
PM2.5
6.38μg/m³
PM10
28.91ppb
O3
0.23ppb
SO2
2.65ppb
NO2
0.14ppm
CO
AQI 23
Good
2.00μg/m³
PM2.5
7.39μg/m³
PM10
24.70ppb
O3
0.18ppb
SO2
1.42ppb
NO2
0.15ppm
CO
AQI 24
Good
3.34μg/m³
PM2.5
13.64μg/m³
PM10
25.54ppb
O3
0.50ppb
SO2
3.46ppb
NO2
0.20ppm
CO
AQI 24
Good
2.06μg/m³
PM2.5
3.52μg/m³
PM10
26.21ppb
O3
0.49ppb
SO2
1.84ppb
NO2
0.15ppm
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 Massachusetts, USA is updated every hour.
The worst air quality in Massachusetts, USA in the last 24 hours was observed at 09:00:00 on 2025-11-01.
In the last 24 hrs, the best air quality in Massachusetts, USA was observed at 12:00:00 on 2025-11-02.
The current air quality in Massachusetts, USA is 25, categorized as Good based on real-time data.
The most common pollutant in Massachusetts, USA is O3.
If the air quality in Massachusetts, USA is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Massachusetts, USA is 1.9 μg/m3.
The current PM10 concentration at Massachusetts, USA is 7.012 μg/m3.
The current carbon monoxide (CO) concentration at Massachusetts, USA is 0.163 ppm.
The current sulfur dioxide (SO2) concentration at Massachusetts, USA is 0.281 ppb.
The current ozone (O3) concentration at Massachusetts, USA is 27.42 ppm.
The current nitrogen dioxide (NO2) concentration at Massachusetts, USA is 1.833 ppb.
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