Stay updated with real-time air quality in Middleborough, 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)
38
Good
Middleborough, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.11 μg/m³
0
55
155
255
425
605+
41.44 ppb
0
55
71
86
201
201+
0.37 ppb
0
36
76
186
605
1005+
10.69 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
High
Middleborough, Massachusetts
Middleborough, Massachusetts
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AQI 40
Good
4.00μg/m³
PM2.5
18.32μg/m³
PM10
43.25ppb
O3
0.39ppb
SO2
13.85ppb
NO2
0.23ppm
CO
AQI 43
Good
3.98μg/m³
PM2.5
18.66μg/m³
PM10
46.08ppb
O3
0.41ppb
SO2
10.54ppb
NO2
0.22ppm
CO
AQI 42
Good
4.34μg/m³
PM2.5
18.99μg/m³
PM10
45.39ppb
O3
0.45ppb
SO2
7.82ppb
NO2
0.20ppm
CO
AQI 40
Good
4.00μg/m³
PM2.5
19.06μg/m³
PM10
42.66ppb
O3
0.38ppb
SO2
13.31ppb
NO2
0.23ppm
CO
AQI 40
Good
4.02μg/m³
PM2.5
19.08μg/m³
PM10
42.73ppb
O3
0.37ppb
SO2
12.87ppb
NO2
0.23ppm
CO
AQI 42
Good
4.34μg/m³
PM2.5
18.67μg/m³
PM10
44.90ppb
O3
0.45ppb
SO2
7.56ppb
NO2
0.20ppm
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 Middleborough, Massachusetts is updated every hour.
The worst air quality in Middleborough, Massachusetts in the last 24 hours was observed at 01:00:00 on 2026-05-14.
In the last 24 hrs, the best air quality in Middleborough, Massachusetts was observed at 01:00:00 on 2026-05-13.
The current air quality in Middleborough, Massachusetts is 38, categorized as Good based on real-time data.
The most common pollutant in Middleborough, Massachusetts is O3.
If the air quality in Middleborough, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Middleborough, Massachusetts is 4.63 μg/m3.
The current PM10 concentration at Middleborough, Massachusetts is 20.106 μg/m3.
The current carbon monoxide (CO) concentration at Middleborough, Massachusetts is 0.25 ppm.
The current sulfur dioxide (SO2) concentration at Middleborough, Massachusetts is 0.366 ppb.
The current ozone (O3) concentration at Middleborough, Massachusetts is 41.441 ppm.
The current nitrogen dioxide (NO2) concentration at Middleborough, Massachusetts is 10.687 ppb.
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