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

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.28 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.89 μg/m³
0
55
155
255
425
605+
26.22 ppb
0
55
71
86
201
201+
0.72 ppb
0
36
76
186
605
1005+
8.35 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hanover, New Hampshire
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AQI 33
Good
5.73μg/m³
PM2.5
24.30μg/m³
PM10
26.32ppb
O3
0.72ppb
SO2
8.46ppb
NO2
0.21ppm
CO
AQI 38
Good
6.57μg/m³
PM2.5
29.42μg/m³
PM10
25.84ppb
O3
0.73ppb
SO2
8.32ppb
NO2
0.21ppm
CO
AQI 33
Good
6.38μg/m³
PM2.5
19.64μg/m³
PM10
29.68ppb
O3
0.49ppb
SO2
7.27ppb
NO2
0.31ppm
CO
AQI 44
Good
8.10μg/m³
PM2.5
18.01μg/m³
PM10
24.00ppb
O3
0.30ppb
SO2
6.30ppb
NO2
0.28ppm
CO
AQI 34
Good
5.08μg/m³
PM2.5
21.91μg/m³
PM10
36.86ppb
O3
0.72ppb
SO2
14.21ppb
NO2
0.24ppm
CO
AQI 33
Good
4.32μg/m³
PM2.5
17.08μg/m³
PM10
35.84ppb
O3
1.04ppb
SO2
18.00ppb
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 Hanover, New Hampshire are available every hour.
Hanover, New Hampshire experienced its worst air quality at 07:00:00, 2025-12-28.
The best air quality in Hanover, New Hampshire was observed at 01:00:00 on 2025-12-28.
The air quality in Hanover, New Hampshire right now is Good, with an AQI of 33.
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 6.281 μg/m3.
Hanover, New Hampshire currently has a PM10 concentration of 27.893 μg/m3.
The current carbon monoxide (CO) level in Hanover, New Hampshire is 0.207 ppm.
The current sulfur dioxide (SO2) concentration in Hanover, New Hampshire is 0.719 ppb.
Hanover, New Hampshire currently has an ozone (O3) concentration of 26.218 ppm.
The current level of nitrogen dioxide (NO2) in Hanover, New Hampshire is 8.348 ppb.
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