Stay updated with real-time air quality in Northampton, 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)
46
Good
Northampton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.39 μg/m³
0
55
155
255
425
605+
49.73 ppb
0
55
71
86
201
201+
0.26 ppb
0
36
76
186
605
1005+
1.87 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Northampton, Massachusetts
Northampton, Massachusetts
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AQI 39
Good
5.38μg/m³
PM2.5
23.72μg/m³
PM10
42.12ppb
O3
0.24ppb
SO2
1.58ppb
NO2
0.20ppm
CO
AQI 43
Good
5.46μg/m³
PM2.5
23.37μg/m³
PM10
45.55ppb
O3
0.23ppb
SO2
1.17ppb
NO2
0.21ppm
CO
AQI 39
Good
5.45μg/m³
PM2.5
19.52μg/m³
PM10
42.16ppb
O3
0.26ppb
SO2
1.52ppb
NO2
0.16ppm
CO
AQI 42
Good
5.76μg/m³
PM2.5
24.95μg/m³
PM10
45.08ppb
O3
0.23ppb
SO2
1.33ppb
NO2
0.21ppm
CO
AQI 41
Good
6.60μg/m³
PM2.5
28.80μg/m³
PM10
43.60ppb
O3
0.21ppb
SO2
1.78ppb
NO2
0.21ppm
CO
AQI 41
Good
5.11μg/m³
PM2.5
16.04μg/m³
PM10
44.38ppb
O3
0.28ppb
SO2
1.09ppb
NO2
0.21ppm
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 Northampton, Massachusetts is updated on an hourly basis.
The worst air quality in Northampton, Massachusetts was recorded at 08:00:00 on 2026-06-11.
The best air quality in Northampton, Massachusetts was recorded at 06:00:00 on 2026-06-11.
The real-time air quality index in Northampton, Massachusetts is 40, currently categorized as Good.
The most common pollutant in Northampton, Massachusetts is O3.
If the air quality in Northampton, Massachusetts is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Northampton, Massachusetts at present are 5.359 μg/m3.
The current PM10 levels in Northampton, Massachusetts are 23.329 μg/m3.
The current carbon monoxide (CO) level in Northampton, Massachusetts is 0.159 ppm.
The current sulfur dioxide (SO2) levels in Northampton, Massachusetts are 0.249 ppb.
The current ozone (O3) levels at Northampton, Massachusetts is 42.871 ppm.
The current nitrogen dioxide (NO2) levels at Northampton, Massachusetts is 1.582 ppb.
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