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)
32
Good
Exeter, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.22 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.05 μg/m³
0
55
155
255
425
605+
35.13 ppb
0
55
71
86
201
201+
0.62 ppb
0
36
76
186
605
1005+
8.04 ppb
0
54
101
361
1250
2050+
0.30 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Exeter, New Hampshire
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AQI 31
Good
5.46μg/m³
PM2.5
13.78μg/m³
PM10
34.39ppb
O3
0.62ppb
SO2
8.51ppb
NO2
0.31ppm
CO
AQI 38
Good
6.94μg/m³
PM2.5
32.23μg/m³
PM10
35.08ppb
O3
0.62ppb
SO2
9.98ppb
NO2
0.31ppm
CO
AQI 34
Good
5.83μg/m³
PM2.5
35.83μg/m³
PM10
37.05ppb
O3
0.65ppb
SO2
9.87ppb
NO2
0.27ppm
CO
AQI 34
Good
6.00μg/m³
PM2.5
36.95μg/m³
PM10
33.02ppb
O3
0.60ppb
SO2
9.81ppb
NO2
0.28ppm
CO
AQI 33
Good
6.16μg/m³
PM2.5
25.61μg/m³
PM10
34.72ppb
O3
0.61ppb
SO2
10.07ppb
NO2
0.31ppm
CO
AQI 34
Good
6.00μg/m³
PM2.5
36.93μg/m³
PM10
33.02ppb
O3
0.60ppb
SO2
9.81ppb
NO2
0.28ppm
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 02:00:00, 2025-12-28.
The best air quality in Exeter, New Hampshire was observed at 11:00:00 on 2025-12-27.
The air quality in Exeter, New Hampshire right now is Good, with an AQI of 32.
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 5.225 μg/m3.
Exeter, New Hampshire currently has a PM10 concentration of 14.054 μg/m3.
The current carbon monoxide (CO) level in Exeter, New Hampshire is 0.299 ppm.
The current sulfur dioxide (SO2) concentration in Exeter, New Hampshire is 0.621 ppb.
Exeter, New Hampshire currently has an ozone (O3) concentration of 35.131 ppm.
The current level of nitrogen dioxide (NO2) in Exeter, New Hampshire is 8.035 ppb.
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