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)
22
Good
Hanover, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
2.46 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.02 μg/m³
0
55
155
255
425
605+
24.03 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
2.52 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hanover, New Hampshire
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AQI 22
Good
2.79μg/m³
PM2.5
11.10μg/m³
PM10
24.09ppb
O3
0.27ppb
SO2
2.58ppb
NO2
0.18ppm
CO
AQI 23
Good
2.64μg/m³
PM2.5
10.80μg/m³
PM10
24.52ppb
O3
0.25ppb
SO2
2.53ppb
NO2
0.18ppm
CO
AQI 18
Good
2.48μg/m³
PM2.5
13.53μg/m³
PM10
19.23ppb
O3
0.55ppb
SO2
2.34ppb
NO2
0.16ppm
CO
AQI 16
Good
3.40μg/m³
PM2.5
5.00μg/m³
PM10
12.00ppb
O3
0.20ppb
SO2
2.38ppb
NO2
0.15ppm
CO
AQI 20
Good
2.51μg/m³
PM2.5
14.94μg/m³
PM10
22.31ppb
O3
1.01ppb
SO2
2.86ppb
NO2
0.15ppm
CO
AQI 21
Good
2.93μg/m³
PM2.5
10.38μg/m³
PM10
23.11ppb
O3
1.24ppb
SO2
2.65ppb
NO2
0.13ppm
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 11:00:00, 2026-11-12.
The best air quality in Hanover, New Hampshire was observed at 11:00:00 on 2026-11-12.
The air quality in Hanover, New Hampshire right now is Good, with an AQI of 22.
In Hanover, New Hampshire, O3 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 2.455 μg/m3.
Hanover, New Hampshire currently has a PM10 concentration of 10.022 μg/m3.
The current carbon monoxide (CO) level in Hanover, New Hampshire is 0.178 ppm.
The current sulfur dioxide (SO2) concentration in Hanover, New Hampshire is 0.272 ppb.
Hanover, New Hampshire currently has an ozone (O3) concentration of 24.034 ppm.
The current level of nitrogen dioxide (NO2) in Hanover, New Hampshire is 2.516 ppb.
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