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)
23
Good
Manchester, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.08 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
11.63 μg/m³
0
55
155
255
425
605+
24.68 ppb
0
55
71
86
201
201+
0.79 ppb
0
36
76
186
605
1005+
0.98 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Manchester, New Hampshire
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AQI 21
Good
3.15μg/m³
PM2.5
11.23μg/m³
PM10
22.91ppb
O3
0.41ppb
SO2
1.27ppb
NO2
0.14ppm
CO
AQI 20
Good
3.41μg/m³
PM2.5
12.05μg/m³
PM10
21.56ppb
O3
0.82ppb
SO2
1.20ppb
NO2
0.14ppm
CO
AQI 20
Good
3.02μg/m³
PM2.5
12.30μg/m³
PM10
22.49ppb
O3
0.71ppb
SO2
1.40ppb
NO2
0.15ppm
CO
AQI 22
Good
3.53μg/m³
PM2.5
12.16μg/m³
PM10
21.14ppb
O3
0.84ppb
SO2
1.17ppb
NO2
0.14ppm
CO
AQI 22
Good
3.89μg/m³
PM2.5
9.73μg/m³
PM10
23.14ppb
O3
1.16ppb
SO2
0.88ppb
NO2
0.11ppm
CO
AQI 22
Good
3.98μg/m³
PM2.5
8.44μg/m³
PM10
23.76ppb
O3
1.26ppb
SO2
0.59ppb
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 05:00:00 on 2026-08-13.
In the last 24 hours, the best air quality in Manchester, New Hampshire was observed at 03:00:00 on 2026-08-14.
As of now, the AQI in Manchester, New Hampshire is 23, 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 3.081 μg/m3.
The PM10 concentration in Manchester, New Hampshire is 11.632 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Manchester, New Hampshire is 0.136 ppm.
Currently, Manchester, New Hampshire has a sulfur dioxide (SO2) concentration of 0.79 ppb.
The current ozone (O3) level in Manchester, New Hampshire at the moment is 24.685 ppm.
Nitrogen dioxide (NO2) level in Manchester, New Hampshire at the moment is 0.982 ppb.
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