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

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.10 μg/m³
0
55
155
255
425
605+
27.62 ppb
0
55
71
86
201
201+
0.78 ppb
0
36
76
186
605
1005+
12.14 ppb
0
54
101
361
1250
2050+
0.23 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Billerica, Massachusetts
Billerica, Massachusetts
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AQI 26
Good
4.19μg/m³
PM2.5
16.71μg/m³
PM10
27.75ppb
O3
0.78ppb
SO2
12.13ppb
NO2
0.24ppm
CO
AQI 26
Good
4.18μg/m³
PM2.5
14.59μg/m³
PM10
27.51ppb
O3
0.72ppb
SO2
5.96ppb
NO2
0.23ppm
CO
AQI 26
Good
4.30μg/m³
PM2.5
15.76μg/m³
PM10
27.92ppb
O3
0.74ppb
SO2
6.65ppb
NO2
0.23ppm
CO
AQI 26
Good
4.23μg/m³
PM2.5
14.89μg/m³
PM10
27.85ppb
O3
0.80ppb
SO2
10.64ppb
NO2
0.23ppm
CO
AQI 25
Good
4.31μg/m³
PM2.5
15.82μg/m³
PM10
27.28ppb
O3
0.73ppb
SO2
5.91ppb
NO2
0.23ppm
CO
AQI 26
Good
4.28μg/m³
PM2.5
17.73μg/m³
PM10
27.69ppb
O3
0.79ppb
SO2
12.92ppb
NO2
0.23ppm
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 Billerica, Massachusetts is updated every hour.
The worst air quality in Billerica, Massachusetts in the last 24 hours was observed at 09:00:00 on 2026-08-16.
In the last 24 hrs, the best air quality in Billerica, Massachusetts was observed at 01:00:00 on 2026-08-17.
The current air quality in Billerica, Massachusetts is 26, categorized as Good based on real-time data.
The most common pollutant in Billerica, Massachusetts is O3.
If the air quality in Billerica, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Billerica, Massachusetts is 4.216 μg/m3.
The current PM10 concentration at Billerica, Massachusetts is 17.103 μg/m3.
The current carbon monoxide (CO) concentration at Billerica, Massachusetts is 0.23 ppm.
The current sulfur dioxide (SO2) concentration at Billerica, Massachusetts is 0.779 ppb.
The current ozone (O3) concentration at Billerica, Massachusetts is 27.619 ppm.
The current nitrogen dioxide (NO2) concentration at Billerica, Massachusetts is 12.14 ppb.
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