Stay updated with real-time air quality in Brockton, 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)
52
Moderate
Brockton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
43.60 μg/m³
0
55
155
255
425
605+
24.30 ppb
0
55
71
86
201
201+
0.47 ppb
0
36
76
186
605
1005+
4.76 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Brockton, Massachusetts
Brockton, Massachusetts
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AQI 49
Good
9.26μg/m³
PM2.5
40.23μg/m³
PM10
26.67ppb
O3
0.48ppb
SO2
4.63ppb
NO2
0.28ppm
CO
AQI 49
Good
8.94μg/m³
PM2.5
37.89μg/m³
PM10
28.48ppb
O3
0.49ppb
SO2
4.46ppb
NO2
0.28ppm
CO
AQI 49
Good
9.30μg/m³
PM2.5
40.43μg/m³
PM10
26.53ppb
O3
0.48ppb
SO2
4.66ppb
NO2
0.28ppm
CO
AQI 49
Good
9.44μg/m³
PM2.5
41.28μg/m³
PM10
25.96ppb
O3
0.48ppb
SO2
4.72ppb
NO2
0.28ppm
CO
AQI 49
Good
8.93μg/m³
PM2.5
36.74μg/m³
PM10
30.22ppb
O3
0.49ppb
SO2
4.22ppb
NO2
0.28ppm
CO
AQI 49
Good
8.74μg/m³
PM2.5
35.69μg/m³
PM10
30.83ppb
O3
0.50ppb
SO2
4.23ppb
NO2
0.28ppm
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 Brockton, Massachusetts is updated every hour.
The worst air quality in Brockton, Massachusetts in the last 24 hours was observed at 03:00:00 on 2026-07-13.
In the last 24 hrs, the best air quality in Brockton, Massachusetts was observed at 10:00:00 on 2026-07-12.
The current air quality in Brockton, Massachusetts is 52, categorized as Moderate based on real-time data.
The most common pollutant in Brockton, Massachusetts is PM2.5.
If the air quality in Brockton, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Brockton, Massachusetts is 9.747 μg/m3.
The current PM10 concentration at Brockton, Massachusetts is 43.598 μg/m3.
The current carbon monoxide (CO) concentration at Brockton, Massachusetts is 0.275 ppm.
The current sulfur dioxide (SO2) concentration at Brockton, Massachusetts is 0.466 ppb.
The current ozone (O3) concentration at Brockton, Massachusetts is 24.302 ppm.
The current nitrogen dioxide (NO2) concentration at Brockton, Massachusetts is 4.758 ppb.
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