Stay updated with real-time air quality in Hanover, 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)
44
Good
Hanover, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.14 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
36.17 μg/m³
0
55
155
255
425
605+
19.22 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
7.91 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hanover, New Hampshire
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AQI 16
Good
2.99μg/m³
PM2.5
12.15μg/m³
PM10
7.31ppb
O3
0.35ppb
SO2
6.03ppb
NO2
0.18ppm
CO
AQI 16
Good
3.27μg/m³
PM2.5
14.62μg/m³
PM10
4.83ppb
O3
0.34ppb
SO2
5.89ppb
NO2
0.18ppm
CO
AQI 38
Good
6.73μg/m³
PM2.5
29.48μg/m³
PM10
5.30ppb
O3
0.38ppb
SO2
9.60ppb
NO2
0.37ppm
CO
AQI 58
Moderate
13.30μg/m³
PM2.5
22.00μg/m³
PM10
1.01ppb
O3
0.60ppb
SO2
5.54ppb
NO2
0.30ppm
CO
AQI 21
Good
2.42μg/m³
PM2.5
10.00μg/m³
PM10
23.43ppb
O3
0.47ppb
SO2
9.61ppb
NO2
0.35ppm
CO
AQI 33
Good
5.53μg/m³
PM2.5
12.49μg/m³
PM10
15.61ppb
O3
0.40ppb
SO2
9.41ppb
NO2
0.34ppm
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 Hanover, New Hampshire are available every hour.
Hanover, New Hampshire experienced its worst air quality at 06:00:00, 2025-11-03.
The best air quality in Hanover, New Hampshire was observed at 03:00:00 on 2025-11-02.
The air quality in Hanover, New Hampshire right now is Good, with an AQI of 27.
In Hanover, New Hampshire, PM2.5 is the most frequently found pollutant.
When air quality in Hanover, New Hampshire is compromised, staying indoors and wearing a mask can reduce health risks.
Hanover, New Hampshire currently has a PM2.5 concentration of 5.363 μg/m3.
Hanover, New Hampshire currently has a PM10 concentration of 22.843 μg/m3.
The current carbon monoxide (CO) level in Hanover, New Hampshire is 0.423 ppm.
The current sulfur dioxide (SO2) concentration in Hanover, New Hampshire is 0.536 ppb.
Hanover, New Hampshire currently has an ozone (O3) concentration of 2.29 ppm.
The current level of nitrogen dioxide (NO2) in Hanover, New Hampshire is 8.202 ppb.
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