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)
49
Good
Millbury, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.07 μg/m³
0
55
155
255
425
605+
26.56 ppb
0
55
71
86
201
201+
1.36 ppb
0
36
76
186
605
1005+
21.22 ppb
0
54
101
361
1250
2050+
0.66 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Millbury, Massachusetts
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AQI 44
Good
8.29μg/m³
PM2.5
21.38μg/m³
PM10
29.34ppb
O3
1.28ppb
SO2
20.41ppb
NO2
0.64ppm
CO
AQI 44
Good
7.51μg/m³
PM2.5
17.52μg/m³
PM10
17.48ppb
O3
1.04ppb
SO2
16.76ppb
NO2
0.60ppm
CO
AQI 49
Good
8.79μg/m³
PM2.5
15.15μg/m³
PM10
29.97ppb
O3
1.59ppb
SO2
23.91ppb
NO2
0.70ppm
CO
AQI 49
Good
8.66μg/m³
PM2.5
14.86μg/m³
PM10
5.26ppb
O3
0.92ppb
SO2
15.54ppb
NO2
0.58ppm
CO
AQI 44
Good
8.47μg/m³
PM2.5
17.81μg/m³
PM10
26.56ppb
O3
1.38ppb
SO2
21.39ppb
NO2
0.66ppm
CO
AQI 44
Good
8.01μg/m³
PM2.5
27.19μg/m³
PM10
15.62ppb
O3
0.80ppb
SO2
16.93ppb
NO2
0.59ppm
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 03:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in Millbury, Massachusetts was observed at 01:00:00 on 2026-03-09.
The current air quality in Millbury, Massachusetts is 49, 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 8.523 μg/m3.
The current PM10 concentration at Millbury, Massachusetts is 18.075 μg/m3.
The current carbon monoxide (CO) concentration at Millbury, Massachusetts is 0.658 ppm.
The current sulfur dioxide (SO2) concentration at Millbury, Massachusetts is 1.358 ppb.
The current ozone (O3) concentration at Millbury, Massachusetts is 26.563 ppm.
The current nitrogen dioxide (NO2) concentration at Millbury, Massachusetts is 21.221 ppb.
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