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)
32
Good
Manchester, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.08 μg/m³
0
55
155
255
425
605+
35.19 ppb
0
55
71
86
201
201+
0.67 ppb
0
36
76
186
605
1005+
9.16 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Manchester, New Hampshire
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AQI 36
Good
4.71μg/m³
PM2.5
22.13μg/m³
PM10
38.65ppb
O3
1.10ppb
SO2
9.30ppb
NO2
0.24ppm
CO
AQI 33
Good
5.15μg/m³
PM2.5
33.93μg/m³
PM10
35.84ppb
O3
0.67ppb
SO2
9.48ppb
NO2
0.25ppm
CO
AQI 37
Good
4.27μg/m³
PM2.5
14.83μg/m³
PM10
40.49ppb
O3
0.75ppb
SO2
10.08ppb
NO2
0.26ppm
CO
AQI 33
Good
4.74μg/m³
PM2.5
24.38μg/m³
PM10
35.94ppb
O3
0.60ppb
SO2
9.59ppb
NO2
0.25ppm
CO
AQI 36
Good
3.93μg/m³
PM2.5
12.93μg/m³
PM10
39.05ppb
O3
0.42ppb
SO2
6.04ppb
NO2
0.22ppm
CO
AQI 38
Good
3.29μg/m³
PM2.5
8.38μg/m³
PM10
40.51ppb
O3
0.32ppb
SO2
3.93ppb
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 05:00:00 on 2025-12-28.
In the last 24 hours, the best air quality in Manchester, New Hampshire was observed at 11:00:00 on 2025-12-27.
As of now, the AQI in Manchester, New Hampshire is 32, indicating Good conditions.
Manchester, New Hampshire air has the highest levels of O3.
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 4.815 μg/m3.
The PM10 concentration in Manchester, New Hampshire is 34.084 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Manchester, New Hampshire is 0.251 ppm.
Currently, Manchester, New Hampshire has a sulfur dioxide (SO2) concentration of 0.67 ppb.
The current ozone (O3) level in Manchester, New Hampshire at the moment is 35.187 ppm.
Nitrogen dioxide (NO2) level in Manchester, New Hampshire at the moment is 9.162 ppb.
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