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)
33
Good
Amherst, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.34 μg/m³
0
55
155
255
425
605+
15.72 ppb
0
55
71
86
201
201+
0.40 ppb
0
36
76
186
605
1005+
8.64 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Amherst, New Hampshire
Amherst, New Hampshire
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AQI 38
Good
6.95μg/m³
PM2.5
33.03μg/m³
PM10
15.44ppb
O3
0.28ppb
SO2
9.72ppb
NO2
0.25ppm
CO
AQI 38
Good
7.11μg/m³
PM2.5
23.37μg/m³
PM10
21.29ppb
O3
0.31ppb
SO2
10.05ppb
NO2
0.24ppm
CO
AQI 38
Good
6.84μg/m³
PM2.5
16.07μg/m³
PM10
19.48ppb
O3
0.32ppb
SO2
10.07ppb
NO2
0.24ppm
CO
AQI 38
Good
6.86μg/m³
PM2.5
23.26μg/m³
PM10
10.01ppb
O3
0.29ppb
SO2
13.52ppb
NO2
0.24ppm
CO
AQI 38
Good
6.76μg/m³
PM2.5
23.22μg/m³
PM10
11.69ppb
O3
0.35ppb
SO2
9.43ppb
NO2
0.25ppm
CO
AQI 38
Good
7.01μg/m³
PM2.5
27.10μg/m³
PM10
19.60ppb
O3
0.25ppb
SO2
13.04ppb
NO2
0.23ppm
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 2025-11-03.
The best air quality in Amherst, New Hampshire was recorded at 03:00:00 on 2025-11-03.
The real-time air quality index in Amherst, New Hampshire is 33, 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 6.424 μg/m3.
The current PM10 levels in Amherst, New Hampshire are 25.914 μg/m3.
The current carbon monoxide (CO) level in Amherst, New Hampshire is 0.212 ppm.
The current sulfur dioxide (SO2) levels in Amherst, New Hampshire are 0.331 ppb.
The current ozone (O3) levels at Amherst, New Hampshire is 16.41 ppm.
The current nitrogen dioxide (NO2) levels at Amherst, New Hampshire is 12.745 ppb.
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