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

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.71 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.01 μg/m³
0
55
155
255
425
605+
26.80 ppb
0
55
71
86
201
201+
0.82 ppb
0
36
76
186
605
1005+
1.42 ppb
0
54
101
361
1250
2050+
0.22 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Manchester, New Hampshire
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AQI 27
Good
4.53μg/m³
PM2.5
21.36μg/m³
PM10
27.21ppb
O3
0.43ppb
SO2
1.61ppb
NO2
0.23ppm
CO
AQI 33
Good
5.73μg/m³
PM2.5
14.05μg/m³
PM10
26.68ppb
O3
0.87ppb
SO2
1.43ppb
NO2
0.22ppm
CO
AQI 28
Good
4.53μg/m³
PM2.5
15.44μg/m³
PM10
29.59ppb
O3
0.74ppb
SO2
1.74ppb
NO2
0.23ppm
CO
AQI 33
Good
5.67μg/m³
PM2.5
13.98μg/m³
PM10
30.72ppb
O3
0.89ppb
SO2
1.39ppb
NO2
0.22ppm
CO
AQI 27
Good
5.34μg/m³
PM2.5
13.13μg/m³
PM10
27.47ppb
O3
1.24ppb
SO2
0.84ppb
NO2
0.21ppm
CO
AQI 27
Good
5.31μg/m³
PM2.5
10.74μg/m³
PM10
27.09ppb
O3
1.36ppb
SO2
0.51ppb
NO2
0.20ppm
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 09:00:00 on 2026-08-11.
In the last 24 hours, the best air quality in Manchester, New Hampshire was observed at 03:00:00 on 2026-08-12.
As of now, the AQI in Manchester, New Hampshire is 33, 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 5.705 μg/m3.
The PM10 concentration in Manchester, New Hampshire is 14.007 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Manchester, New Hampshire is 0.223 ppm.
Currently, Manchester, New Hampshire has a sulfur dioxide (SO2) concentration of 0.82 ppb.
The current ozone (O3) level in Manchester, New Hampshire at the moment is 26.801 ppm.
Nitrogen dioxide (NO2) level in Manchester, New Hampshire at the moment is 1.417 ppb.
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