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)
52
Moderate
Northborough, Massachusetts
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
9.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
30.73 μg/m³
0
55
155
255
425
605+
35.43 ppb
0
55
71
86
201
201+
0.38 ppb
0
36
76
186
605
1005+
19.71 ppb
0
54
101
361
1250
2050+
0.49 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Northborough, Massachusetts
Northborough, Massachusetts
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AQI 38
Good
7.17μg/m³
PM2.5
20.33μg/m³
PM10
39.37ppb
O3
0.29ppb
SO2
2.94ppb
NO2
0.26ppm
CO
AQI 44
Good
8.16μg/m³
PM2.5
15.85μg/m³
PM10
37.27ppb
O3
0.22ppb
SO2
3.72ppb
NO2
0.28ppm
CO
AQI 38
Good
6.73μg/m³
PM2.5
19.03μg/m³
PM10
40.00ppb
O3
0.30ppb
SO2
2.98ppb
NO2
0.25ppm
CO
AQI 38
Good
7.13μg/m³
PM2.5
20.27μg/m³
PM10
40.09ppb
O3
0.31ppb
SO2
2.90ppb
NO2
0.25ppm
CO
AQI 38
Good
7.24μg/m³
PM2.5
20.68μg/m³
PM10
37.50ppb
O3
0.29ppb
SO2
3.22ppb
NO2
0.24ppm
CO
AQI 44
Good
8.39μg/m³
PM2.5
31.09μg/m³
PM10
35.13ppb
O3
0.27ppb
SO2
3.32ppb
NO2
0.24ppm
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 04:00:00 on 2025-09-14.
In the last 24 hrs, the best air quality in Northborough, Massachusetts was observed at 02:00:00 on 2025-09-14.
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 6.353 μg/m3.
The current PM10 concentration at Northborough, Massachusetts is 28.084 μg/m3.
The current carbon monoxide (CO) concentration at Northborough, Massachusetts is 0.276 ppm.
The current sulfur dioxide (SO2) concentration at Northborough, Massachusetts is 0.262 ppb.
The current ozone (O3) concentration at Northborough, Massachusetts is 35.075 ppm.
The current nitrogen dioxide (NO2) concentration at Northborough, Massachusetts is 3.18 ppb.
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