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)
54
Moderate
Exeter, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
10.89 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
36.30 μg/m³
0
55
155
255
425
605+
35.77 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
1.98 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Exeter, New Hampshire
Scroll To Air Quality MapLoading...
AQI 56
Moderate
12.03μg/m³
PM2.5
25.68μg/m³
PM10
28.65ppb
O3
0.69ppb
SO2
2.31ppb
NO2
0.12ppm
CO
AQI 54
Moderate
10.94μg/m³
PM2.5
31.27μg/m³
PM10
32.48ppb
O3
0.75ppb
SO2
2.89ppb
NO2
0.12ppm
CO
AQI 54
Moderate
11.18μg/m³
PM2.5
28.14μg/m³
PM10
25.08ppb
O3
0.68ppb
SO2
3.25ppb
NO2
0.12ppm
CO
AQI 56
Moderate
12.09μg/m³
PM2.5
23.14μg/m³
PM10
24.29ppb
O3
0.51ppb
SO2
3.33ppb
NO2
0.12ppm
CO
AQI 54
Moderate
10.90μg/m³
PM2.5
32.50μg/m³
PM10
32.64ppb
O3
0.76ppb
SO2
2.98ppb
NO2
0.13ppm
CO
AQI 56
Moderate
12.09μg/m³
PM2.5
23.18μg/m³
PM10
24.39ppb
O3
0.51ppb
SO2
3.33ppb
NO2
0.12ppm
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, 2026-06-29.
The best air quality in Exeter, New Hampshire was observed at 09:00:00 on 2026-06-29.
The air quality in Exeter, New Hampshire right now is Moderate, with an AQI of 54.
In Exeter, New Hampshire, PM2.5 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 10.886 μg/m3.
Exeter, New Hampshire currently has a PM10 concentration of 36.298 μg/m3.
The current carbon monoxide (CO) level in Exeter, New Hampshire is 0.121 ppm.
The current sulfur dioxide (SO2) concentration in Exeter, New Hampshire is 0.918 ppb.
Exeter, New Hampshire currently has an ozone (O3) concentration of 35.767 ppm.
The current level of nitrogen dioxide (NO2) in Exeter, New Hampshire is 1.982 ppb.
All Rights Reserved © Ambee Inc. 2025