Stay updated with real-time air quality in Hudson, 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)
29
Good
Hudson, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.68 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
16.43 μg/m³
0
55
155
255
425
605+
30.72 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
10.66 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hudson, New Hampshire
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AQI 30
Good
4.58μg/m³
PM2.5
15.83μg/m³
PM10
32.03ppb
O3
0.65ppb
SO2
11.04ppb
NO2
0.13ppm
CO
AQI 33
Good
4.51μg/m³
PM2.5
16.96μg/m³
PM10
35.59ppb
O3
0.65ppb
SO2
16.00ppb
NO2
0.14ppm
CO
AQI 32
Good
4.49μg/m³
PM2.5
15.15μg/m³
PM10
34.87ppb
O3
0.65ppb
SO2
12.74ppb
NO2
0.14ppm
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
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 35
Good
4.61μg/m³
PM2.5
14.80μg/m³
PM10
37.94ppb
O3
0.67ppb
SO2
9.96ppb
NO2
0.12ppm
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 Hudson, New Hampshire is updated every hour for accuracy.
In the past 24 hours, the air quality in Hudson, New Hampshire was at its worst at 04:00:00 on 2026-05-13.
In the last 24 hours, the best air quality in Hudson, New Hampshire was observed at 01:00:00 on 2026-05-13.
As of now, the AQI in Hudson, New Hampshire is 29, indicating Good conditions.
Hudson, New Hampshire air has the highest levels of O3.
Poor air quality in Hudson, New Hampshire means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Hudson, New Hampshire are currently 4.678 μg/m3.
The PM10 concentration in Hudson, New Hampshire is 16.433 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hudson, New Hampshire is 0.145 ppm.
Currently, Hudson, New Hampshire has a sulfur dioxide (SO2) concentration of 0.65 ppb.
The current ozone (O3) level in Hudson, New Hampshire at the moment is 30.72 ppm.
Nitrogen dioxide (NO2) level in Hudson, New Hampshire at the moment is 10.662 ppb.
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