Stay updated with real-time air quality in Millbury, 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)
28
Good
Millbury, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
9.91 μg/m³
0
55
155
255
425
605+
29.73 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
4.88 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Millbury, Massachusetts
Millbury, Massachusetts
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AQI 38
Good
7.38μg/m³
PM2.5
18.73μg/m³
PM10
16.68ppb
O3
0.30ppb
SO2
12.53ppb
NO2
0.44ppm
CO
AQI 49
Good
9.29μg/m³
PM2.5
34.69μg/m³
PM10
4.00ppb
O3
0.35ppb
SO2
14.61ppb
NO2
0.52ppm
CO
AQI 38
Good
7.30μg/m³
PM2.5
12.16μg/m³
PM10
11.74ppb
O3
0.30ppb
SO2
14.94ppb
NO2
0.40ppm
CO
AQI 44
Good
7.78μg/m³
PM2.5
13.63μg/m³
PM10
3.03ppb
O3
0.36ppb
SO2
11.81ppb
NO2
0.56ppm
CO
AQI 38
Good
7.38μg/m³
PM2.5
15.62μg/m³
PM10
12.25ppb
O3
0.31ppb
SO2
13.77ppb
NO2
0.43ppm
CO
AQI 38
Good
7.42μg/m³
PM2.5
28.14μg/m³
PM10
15.52ppb
O3
0.29ppb
SO2
8.14ppb
NO2
0.54ppm
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 Millbury, Massachusetts is updated every hour.
The worst air quality in Millbury, Massachusetts in the last 24 hours was observed at 10:00:00 on 2025-11-03.
In the last 24 hrs, the best air quality in Millbury, Massachusetts was observed at 02:00:00 on 2025-11-02.
The current air quality in Millbury, Massachusetts is 38, categorized as Good based on real-time data.
The most common pollutant in Millbury, Massachusetts is PM2.5.
If the air quality in Millbury, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Millbury, Massachusetts is 7.434 μg/m3.
The current PM10 concentration at Millbury, Massachusetts is 15.554 μg/m3.
The current carbon monoxide (CO) concentration at Millbury, Massachusetts is 0.442 ppm.
The current sulfur dioxide (SO2) concentration at Millbury, Massachusetts is 0.308 ppb.
The current ozone (O3) concentration at Millbury, Massachusetts is 12.849 ppm.
The current nitrogen dioxide (NO2) concentration at Millbury, Massachusetts is 13.461 ppb.
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