Stay updated with real-time air quality in Amherst, New Hampshire 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)
38
Good
Amherst, New Hampshire
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
6.91 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.14 μg/m³
0
55
155
255
425
605+
17.09 ppb
0
55
71
86
201
201+
0.53 ppb
0
36
76
186
605
1005+
6.11 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Amherst, New Hampshire
Amherst, New Hampshire
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AQI 38
Good
7.16μg/m³
PM2.5
23.37μg/m³
PM10
40.06ppb
O3
0.36ppb
SO2
3.72ppb
NO2
0.22ppm
CO
AQI 38
Good
6.83μg/m³
PM2.5
28.63μg/m³
PM10
35.10ppb
O3
0.38ppb
SO2
3.79ppb
NO2
0.22ppm
CO
AQI 39
Good
6.92μg/m³
PM2.5
27.70μg/m³
PM10
41.58ppb
O3
0.39ppb
SO2
3.61ppb
NO2
0.22ppm
CO
AQI 38
Good
6.94μg/m³
PM2.5
21.92μg/m³
PM10
37.87ppb
O3
0.40ppb
SO2
3.73ppb
NO2
0.22ppm
CO
AQI 44
Good
7.56μg/m³
PM2.5
23.42μg/m³
PM10
41.50ppb
O3
0.39ppb
SO2
2.01ppb
NO2
0.22ppm
CO
AQI 38
Good
6.99μg/m³
PM2.5
21.89μg/m³
PM10
38.41ppb
O3
0.41ppb
SO2
3.68ppb
NO2
0.22ppm
CO
Air quality measurements for New Hampshire, 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 Amherst, New Hampshire is updated on an hourly basis.
The worst air quality in Amherst, New Hampshire was recorded at 03:00:00 on 2025-09-14.
The best air quality in Amherst, New Hampshire was recorded at 01:00:00 on 2025-09-14.
The real-time air quality index in Amherst, New Hampshire is 38, currently categorized as Good.
The most common pollutant in Amherst, New Hampshire is PM2.5.
If the air quality in Amherst, New Hampshire is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Amherst, New Hampshire at present are 7.46 μg/m3.
The current PM10 levels in Amherst, New Hampshire are 30.65 μg/m3.
The current carbon monoxide (CO) level in Amherst, New Hampshire is 0.222 ppm.
The current sulfur dioxide (SO2) levels in Amherst, New Hampshire are 0.375 ppb.
The current ozone (O3) levels at Amherst, New Hampshire is 39.412 ppm.
The current nitrogen dioxide (NO2) levels at Amherst, New Hampshire is 3.764 ppb.
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