Stay updated with real-time air quality in Manchester, 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)
27
Good
Manchester, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.48 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
22.27 μg/m³
0
55
155
255
425
605+
23.63 ppb
0
55
71
86
201
201+
0.81 ppb
0
36
76
186
605
1005+
12.13 ppb
0
54
101
361
1250
2050+
0.21 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Manchester, New Hampshire
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AQI 22
Good
3.88μg/m³
PM2.5
7.95μg/m³
PM10
16.67ppb
O3
0.36ppb
SO2
13.80ppb
NO2
0.41ppm
CO
AQI 22
Good
3.85μg/m³
PM2.5
7.87μg/m³
PM10
14.58ppb
O3
0.30ppb
SO2
14.14ppb
NO2
0.39ppm
CO
AQI 22
Good
3.84μg/m³
PM2.5
7.92μg/m³
PM10
17.43ppb
O3
0.33ppb
SO2
13.75ppb
NO2
0.42ppm
CO
AQI 22
Good
3.88μg/m³
PM2.5
8.60μg/m³
PM10
21.53ppb
O3
0.28ppb
SO2
13.87ppb
NO2
0.39ppm
CO
AQI 33
Good
6.25μg/m³
PM2.5
14.50μg/m³
PM10
11.22ppb
O3
0.18ppb
SO2
14.80ppb
NO2
0.34ppm
CO
AQI 33
Good
6.04μg/m³
PM2.5
10.14μg/m³
PM10
12.67ppb
O3
0.12ppb
SO2
15.40ppb
NO2
0.31ppm
CO
Air quality and pollutant data for New Hampshire, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Manchester, New Hampshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Manchester, New Hampshire was at its worst at 04:00:00 on 2025-11-03.
In the last 24 hours, the best air quality in Manchester, New Hampshire was observed at 02:00:00 on 2025-11-02.
As of now, the AQI in Manchester, New Hampshire is 22, indicating Good conditions.
Manchester, New Hampshire air has the highest levels of PM2.5.
Poor air quality in Manchester, New Hampshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Manchester, New Hampshire are currently 4.063 μg/m3.
The PM10 concentration in Manchester, New Hampshire is 12.713 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Manchester, New Hampshire is 0.347 ppm.
Currently, Manchester, New Hampshire has a sulfur dioxide (SO2) concentration of 0.295 ppb.
The current ozone (O3) level in Manchester, New Hampshire at the moment is 11.098 ppm.
Nitrogen dioxide (NO2) level in Manchester, New Hampshire at the moment is 14.02 ppb.
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