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)
35
Good
Manchester, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.77 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.39 μg/m³
0
55
155
255
425
605+
38.18 ppb
0
55
71
86
201
201+
0.68 ppb
0
36
76
186
605
1005+
8.54 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 32
Good
4.58μg/m³
PM2.5
13.60μg/m³
PM10
35.33ppb
O3
0.69ppb
SO2
8.47ppb
NO2
0.13ppm
CO
AQI 35
Good
4.75μg/m³
PM2.5
17.52μg/m³
PM10
38.15ppb
O3
0.64ppb
SO2
7.74ppb
NO2
0.13ppm
CO
AQI 37
Good
4.14μg/m³
PM2.5
12.44μg/m³
PM10
39.56ppb
O3
0.61ppb
SO2
11.76ppb
NO2
0.14ppm
CO
AQI 35
Good
4.79μg/m³
PM2.5
17.67μg/m³
PM10
37.98ppb
O3
0.64ppb
SO2
9.68ppb
NO2
0.13ppm
CO
AQI 36
Good
4.65μg/m³
PM2.5
13.13μg/m³
PM10
38.86ppb
O3
0.68ppb
SO2
6.55ppb
NO2
0.11ppm
CO
AQI 37
Good
4.69μg/m³
PM2.5
11.52μg/m³
PM10
39.63ppb
O3
0.70ppb
SO2
3.77ppb
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 04:00:00 on 2026-05-13.
In the last 24 hours, the best air quality in Manchester, New Hampshire was observed at 01:00:00 on 2026-05-13.
As of now, the AQI in Manchester, New Hampshire is 35, 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 4.77 μg/m3.
The PM10 concentration in Manchester, New Hampshire is 13.395 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Manchester, New Hampshire is 0.139 ppm.
Currently, Manchester, New Hampshire has a sulfur dioxide (SO2) concentration of 0.678 ppb.
The current ozone (O3) level in Manchester, New Hampshire at the moment is 38.178 ppm.
Nitrogen dioxide (NO2) level in Manchester, New Hampshire at the moment is 8.545 ppb.
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