Stay updated with real-time air quality in Exeter, 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)
27
Good
Exeter, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.24 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.62 μg/m³
0
55
155
255
425
605+
28.76 ppb
0
55
71
86
201
201+
0.72 ppb
0
36
76
186
605
1005+
3.42 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Exeter, New Hampshire
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AQI 44
Good
8.39μg/m³
PM2.5
25.49μg/m³
PM10
28.84ppb
O3
0.76ppb
SO2
4.84ppb
NO2
0.22ppm
CO
AQI 38
Good
7.35μg/m³
PM2.5
24.80μg/m³
PM10
30.04ppb
O3
0.70ppb
SO2
4.16ppb
NO2
0.22ppm
CO
AQI 44
Good
7.74μg/m³
PM2.5
24.82μg/m³
PM10
30.46ppb
O3
0.77ppb
SO2
4.88ppb
NO2
0.22ppm
CO
AQI 38
Good
6.90μg/m³
PM2.5
11.17μg/m³
PM10
29.08ppb
O3
0.90ppb
SO2
5.13ppb
NO2
0.22ppm
CO
AQI 38
Good
6.86μg/m³
PM2.5
29.12μg/m³
PM10
29.66ppb
O3
0.69ppb
SO2
4.54ppb
NO2
0.23ppm
CO
AQI 38
Good
6.90μg/m³
PM2.5
11.24μg/m³
PM10
29.10ppb
O3
0.89ppb
SO2
5.13ppb
NO2
0.22ppm
CO
The air quality data for New Hampshire, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Exeter, New Hampshire are available every hour.
Exeter, New Hampshire experienced its worst air quality at 03:00:00, 2026-02-11.
The best air quality in Exeter, New Hampshire was observed at 10:00:00 on 2026-02-11.
The air quality in Exeter, New Hampshire right now is Good, with an AQI of 27.
In Exeter, New Hampshire, O3 is the most frequently found pollutant.
When air quality in Exeter, New Hampshire is compromised, staying indoors and wearing a mask can reduce health risks.
Exeter, New Hampshire currently has a PM2.5 concentration of 5.236 μg/m3.
Exeter, New Hampshire currently has a PM10 concentration of 10.621 μg/m3.
The current carbon monoxide (CO) level in Exeter, New Hampshire is 0.221 ppm.
The current sulfur dioxide (SO2) concentration in Exeter, New Hampshire is 0.721 ppb.
Exeter, New Hampshire currently has an ozone (O3) concentration of 28.764 ppm.
The current level of nitrogen dioxide (NO2) in Exeter, New Hampshire is 3.423 ppb.
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