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

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.43 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
50.39 μg/m³
0
55
155
255
425
605+
25.30 ppb
0
55
71
86
201
201+
0.49 ppb
0
36
76
186
605
1005+
7.75 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hanover, New Hampshire
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AQI 56
Moderate
11.54μg/m³
PM2.5
51.05μg/m³
PM10
25.18ppb
O3
0.49ppb
SO2
7.76ppb
NO2
0.24ppm
CO
AQI 54
Moderate
11.42μg/m³
PM2.5
50.27μg/m³
PM10
25.25ppb
O3
0.49ppb
SO2
7.74ppb
NO2
0.24ppm
CO
AQI 38
Good
7.23μg/m³
PM2.5
25.43μg/m³
PM10
37.64ppb
O3
0.52ppb
SO2
6.61ppb
NO2
0.30ppm
CO
AQI 44
Good
7.70μg/m³
PM2.5
17.02μg/m³
PM10
23.00ppb
O3
0.30ppb
SO2
6.49ppb
NO2
0.24ppm
CO
AQI 32
Good
4.90μg/m³
PM2.5
20.94μg/m³
PM10
35.08ppb
O3
0.74ppb
SO2
9.32ppb
NO2
0.24ppm
CO
AQI 36
Good
4.51μg/m³
PM2.5
21.52μg/m³
PM10
38.77ppb
O3
1.12ppb
SO2
9.51ppb
NO2
0.24ppm
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 Moderate, with an AQI of 54.
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 11.43 μg/m3.
Hanover, New Hampshire currently has a PM10 concentration of 50.391 μg/m3.
The current carbon monoxide (CO) level in Hanover, New Hampshire is 0.24 ppm.
The current sulfur dioxide (SO2) concentration in Hanover, New Hampshire is 0.493 ppb.
Hanover, New Hampshire currently has an ozone (O3) concentration of 25.303 ppm.
The current level of nitrogen dioxide (NO2) in Hanover, New Hampshire is 7.745 ppb.
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