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

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.55 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
12.63 μg/m³
0
55
155
255
425
605+
33.85 ppb
0
55
71
86
201
201+
0.32 ppb
0
36
76
186
605
1005+
2.85 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Northbridge, Massachusetts
Northbridge, Massachusetts
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AQI 31
Good
5.44μg/m³
PM2.5
14.35μg/m³
PM10
33.68ppb
O3
0.37ppb
SO2
3.56ppb
NO2
0.19ppm
CO
AQI 33
Good
5.59μg/m³
PM2.5
12.17μg/m³
PM10
33.98ppb
O3
0.33ppb
SO2
2.53ppb
NO2
0.19ppm
CO
AQI 31
Good
5.46μg/m³
PM2.5
12.86μg/m³
PM10
32.87ppb
O3
0.17ppb
SO2
5.11ppb
NO2
0.20ppm
CO
AQI 31
Good
5.33μg/m³
PM2.5
15.17μg/m³
PM10
34.04ppb
O3
0.36ppb
SO2
2.81ppb
NO2
0.19ppm
CO
AQI 29
Good
5.47μg/m³
PM2.5
14.65μg/m³
PM10
31.38ppb
O3
0.43ppb
SO2
3.74ppb
NO2
0.19ppm
CO
AQI 30
Good
5.44μg/m³
PM2.5
15.02μg/m³
PM10
32.02ppb
O3
0.48ppb
SO2
3.47ppb
NO2
0.18ppm
CO
Air quality measurements for Massachusetts, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Northbridge, Massachusetts is updated on an hourly basis.
The worst air quality in Northbridge, Massachusetts was recorded at 09:00:00 on 2026-09-09.
The best air quality in Northbridge, Massachusetts was recorded at 04:00:00 on 2026-09-10.
The real-time air quality index in Northbridge, Massachusetts is 33, currently categorized as Good.
The most common pollutant in Northbridge, Massachusetts is PM2.5.
If the air quality in Northbridge, Massachusetts is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Northbridge, Massachusetts at present are 5.546 μg/m3.
The current PM10 levels in Northbridge, Massachusetts are 12.63 μg/m3.
The current carbon monoxide (CO) level in Northbridge, Massachusetts is 0.189 ppm.
The current sulfur dioxide (SO2) levels in Northbridge, Massachusetts are 0.32 ppb.
The current ozone (O3) levels at Northbridge, Massachusetts is 33.854 ppm.
The current nitrogen dioxide (NO2) levels at Northbridge, Massachusetts is 2.852 ppb.
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