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)
29
Good
Northampton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.36 μg/m³
0
55
155
255
425
605+
31.30 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
2.19 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Northampton, Massachusetts
Northampton, Massachusetts
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AQI 28
Good
1.71μg/m³
PM2.5
10.04μg/m³
PM10
30.32ppb
O3
0.60ppb
SO2
1.90ppb
NO2
0.16ppm
CO
AQI 28
Good
1.57μg/m³
PM2.5
6.50μg/m³
PM10
30.50ppb
O3
0.59ppb
SO2
1.35ppb
NO2
0.17ppm
CO
AQI 31
Good
1.80μg/m³
PM2.5
7.11μg/m³
PM10
32.79ppb
O3
0.64ppb
SO2
1.86ppb
NO2
0.16ppm
CO
AQI 29
Good
1.68μg/m³
PM2.5
6.97μg/m³
PM10
31.00ppb
O3
0.58ppb
SO2
1.66ppb
NO2
0.17ppm
CO
AQI 30
Good
1.96μg/m³
PM2.5
8.34μg/m³
PM10
32.49ppb
O3
0.56ppb
SO2
2.56ppb
NO2
0.17ppm
CO
AQI 29
Good
1.37μg/m³
PM2.5
7.14μg/m³
PM10
31.02ppb
O3
0.63ppb
SO2
1.86ppb
NO2
0.17ppm
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 04:00:00 on 2026-10-05.
The best air quality in Northampton, Massachusetts was recorded at 03:00:00 on 2026-10-05.
The real-time air quality index in Northampton, Massachusetts is 31, 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 1.687 μg/m3.
The current PM10 levels in Northampton, Massachusetts are 6.833 μg/m3.
The current carbon monoxide (CO) level in Northampton, Massachusetts is 0.161 ppm.
The current sulfur dioxide (SO2) levels in Northampton, Massachusetts are 0.619 ppb.
The current ozone (O3) levels at Northampton, Massachusetts is 32.813 ppm.
The current nitrogen dioxide (NO2) levels at Northampton, Massachusetts is 1.914 ppb.
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