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)
20
Good
Northampton, Massachusetts
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.23 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
3.61 μg/m³
0
55
155
255
425
605+
21.85 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
2.54 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Northampton, Massachusetts
Northampton, Massachusetts
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AQI 20
Good
1.22μg/m³
PM2.5
3.55μg/m³
PM10
21.66ppb
O3
0.69ppb
SO2
2.50ppb
NO2
0.23ppm
CO
AQI 19
Good
0.98μg/m³
PM2.5
3.72μg/m³
PM10
19.52ppb
O3
0.69ppb
SO2
1.44ppb
NO2
0.23ppm
CO
AQI 19
Good
1.10μg/m³
PM2.5
2.58μg/m³
PM10
20.47ppb
O3
0.70ppb
SO2
2.35ppb
NO2
0.22ppm
CO
AQI 19
Good
1.45μg/m³
PM2.5
5.88μg/m³
PM10
19.60ppb
O3
0.69ppb
SO2
1.72ppb
NO2
0.23ppm
CO
AQI 19
Good
2.73μg/m³
PM2.5
11.86μg/m³
PM10
20.10ppb
O3
0.69ppb
SO2
2.59ppb
NO2
0.24ppm
CO
AQI 21
Good
0.61μg/m³
PM2.5
1.93μg/m³
PM10
23.14ppb
O3
0.69ppb
SO2
2.26ppb
NO2
0.24ppm
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 03:00:00 on 2026-09-28.
The best air quality in Northampton, Massachusetts was recorded at 08:00:00 on 2026-09-28.
The real-time air quality index in Northampton, Massachusetts is 20, 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 1.226 μg/m3.
The current PM10 levels in Northampton, Massachusetts are 3.61 μg/m3.
The current carbon monoxide (CO) level in Northampton, Massachusetts is 0.224 ppm.
The current sulfur dioxide (SO2) levels in Northampton, Massachusetts are 0.7 ppb.
The current ozone (O3) levels at Northampton, Massachusetts is 21.848 ppm.
The current nitrogen dioxide (NO2) levels at Northampton, Massachusetts is 2.539 ppb.
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