Stay updated with real-time air quality in Northborough, 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)
33
Good
Northborough, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.19 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
15.59 μg/m³
0
55
155
255
425
605+
24.21 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
2.18 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Northborough, Massachusetts
Northborough, Massachusetts
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AQI 38
Good
7.19μg/m³
PM2.5
19.49μg/m³
PM10
13.52ppb
O3
0.63ppb
SO2
6.06ppb
NO2
0.28ppm
CO
AQI 38
Good
7.06μg/m³
PM2.5
14.29μg/m³
PM10
13.13ppb
O3
0.45ppb
SO2
6.73ppb
NO2
0.29ppm
CO
AQI 38
Good
7.20μg/m³
PM2.5
15.96μg/m³
PM10
14.35ppb
O3
0.70ppb
SO2
5.93ppb
NO2
0.27ppm
CO
AQI 38
Good
7.38μg/m³
PM2.5
15.69μg/m³
PM10
14.85ppb
O3
0.68ppb
SO2
5.97ppb
NO2
0.27ppm
CO
AQI 38
Good
7.11μg/m³
PM2.5
23.72μg/m³
PM10
14.21ppb
O3
0.66ppb
SO2
5.64ppb
NO2
0.27ppm
CO
AQI 38
Good
6.80μg/m³
PM2.5
27.61μg/m³
PM10
14.69ppb
O3
0.63ppb
SO2
5.79ppb
NO2
0.27ppm
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 Northborough, Massachusetts is updated every hour.
The worst air quality in Northborough, Massachusetts in the last 24 hours was observed at 07:00:00 on 2026-08-11.
In the last 24 hrs, the best air quality in Northborough, Massachusetts was observed at 03:00:00 on 2026-08-12.
The current air quality in Northborough, Massachusetts is 33, categorized as Good based on real-time data.
The most common pollutant in Northborough, Massachusetts is PM2.5.
If the air quality in Northborough, Massachusetts is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Northborough, Massachusetts is 6.191 μg/m3.
The current PM10 concentration at Northborough, Massachusetts is 15.59 μg/m3.
The current carbon monoxide (CO) concentration at Northborough, Massachusetts is 0.212 ppm.
The current sulfur dioxide (SO2) concentration at Northborough, Massachusetts is 0.445 ppb.
The current ozone (O3) concentration at Northborough, Massachusetts is 24.207 ppm.
The current nitrogen dioxide (NO2) concentration at Northborough, Massachusetts is 2.178 ppb.
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