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)
12
Good
Hanover, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
1.75 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
7.81 μg/m³
0
55
155
255
425
605+
13.23 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
1.72 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hanover, New Hampshire
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AQI 12
Good
1.77μg/m³
PM2.5
7.89μg/m³
PM10
13.14ppb
O3
0.54ppb
SO2
1.72ppb
NO2
0.17ppm
CO
AQI 12
Good
1.75μg/m³
PM2.5
7.78μg/m³
PM10
13.27ppb
O3
0.54ppb
SO2
1.72ppb
NO2
0.17ppm
CO
AQI 19
Good
1.23μg/m³
PM2.5
4.87μg/m³
PM10
21.25ppb
O3
0.56ppb
SO2
1.70ppb
NO2
0.18ppm
CO
AQI 19
Good
1.40μg/m³
PM2.5
3.00μg/m³
PM10
20.00ppb
O3
0.48ppb
SO2
1.68ppb
NO2
0.14ppm
CO
AQI 19
Good
0.23μg/m³
PM2.5
1.06μg/m³
PM10
20.19ppb
O3
0.75ppb
SO2
1.76ppb
NO2
0.18ppm
CO
AQI 18
Good
0.65μg/m³
PM2.5
2.40μg/m³
PM10
19.31ppb
O3
0.64ppb
SO2
1.73ppb
NO2
0.18ppm
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 08:00:00, 2026-09-28.
The best air quality in Hanover, New Hampshire was observed at 01:00:00 on 2026-09-28.
The air quality in Hanover, New Hampshire right now is Good, with an AQI of 12.
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 1.755 μg/m3.
Hanover, New Hampshire currently has a PM10 concentration of 7.814 μg/m3.
The current carbon monoxide (CO) level in Hanover, New Hampshire is 0.171 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 13.233 ppm.
The current level of nitrogen dioxide (NO2) in Hanover, New Hampshire is 1.721 ppb.
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