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)
56
Moderate
Manchester, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
38.04 μg/m³
0
55
155
255
425
605+
34.77 ppb
0
55
71
86
201
201+
0.70 ppb
0
36
76
186
605
1005+
1.52 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Manchester, New Hampshire
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AQI 54
Moderate
11.22μg/m³
PM2.5
39.41μg/m³
PM10
36.80ppb
O3
0.45ppb
SO2
3.02ppb
NO2
0.11ppm
CO
AQI 56
Moderate
11.97μg/m³
PM2.5
38.64μg/m³
PM10
32.30ppb
O3
0.71ppb
SO2
2.63ppb
NO2
0.11ppm
CO
AQI 56
Moderate
11.97μg/m³
PM2.5
33.37μg/m³
PM10
32.27ppb
O3
0.62ppb
SO2
2.67ppb
NO2
0.11ppm
CO
AQI 56
Moderate
12.03μg/m³
PM2.5
38.65μg/m³
PM10
34.62ppb
O3
0.79ppb
SO2
2.59ppb
NO2
0.11ppm
CO
AQI 58
Moderate
12.95μg/m³
PM2.5
25.74μg/m³
PM10
37.56ppb
O3
1.00ppb
SO2
1.81ppb
NO2
0.11ppm
CO
AQI 60
Moderate
13.54μg/m³
PM2.5
20.70μg/m³
PM10
38.67ppb
O3
1.08ppb
SO2
1.29ppb
NO2
0.10ppm
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 03:00:00 on 2026-06-29.
In the last 24 hours, the best air quality in Manchester, New Hampshire was observed at 07:00:00 on 2026-06-28.
As of now, the AQI in Manchester, New Hampshire is 56, indicating Moderate 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 12.336 μg/m3.
The PM10 concentration in Manchester, New Hampshire is 38.043 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Manchester, New Hampshire is 0.11 ppm.
Currently, Manchester, New Hampshire has a sulfur dioxide (SO2) concentration of 0.705 ppb.
The current ozone (O3) level in Manchester, New Hampshire at the moment is 34.775 ppm.
Nitrogen dioxide (NO2) level in Manchester, New Hampshire at the moment is 1.521 ppb.
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