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

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.48 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
44.55 μg/m³
0
55
155
255
425
605+
37.72 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
1.71 ppb
0
54
101
361
1250
2050+
0.11 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hudson, New Hampshire
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AQI 56
Moderate
12.39μg/m³
PM2.5
34.02μg/m³
PM10
36.21ppb
O3
0.84ppb
SO2
2.73ppb
NO2
0.11ppm
CO
AQI 56
Moderate
11.91μg/m³
PM2.5
38.92μg/m³
PM10
34.92ppb
O3
0.81ppb
SO2
3.79ppb
NO2
0.12ppm
CO
AQI 56
Moderate
11.97μg/m³
PM2.5
38.75μg/m³
PM10
34.51ppb
O3
0.82ppb
SO2
2.59ppb
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
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
12.50μg/m³
PM2.5
31.59μg/m³
PM10
36.53ppb
O3
0.93ppb
SO2
2.47ppb
NO2
0.11ppm
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 05:00:00 on 2026-06-29.
In the last 24 hours, the best air quality in Hudson, New Hampshire was observed at 06:00:00 on 2026-06-29.
As of now, the AQI in Hudson, New Hampshire is 56, indicating Moderate conditions.
Hudson, New Hampshire air has the highest levels of PM2.5.
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 12.481 μg/m3.
The PM10 concentration in Hudson, New Hampshire is 44.547 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Hudson, New Hampshire is 0.112 ppm.
Currently, Hudson, New Hampshire has a sulfur dioxide (SO2) concentration of 0.86 ppb.
The current ozone (O3) level in Hudson, New Hampshire at the moment is 37.722 ppm.
Nitrogen dioxide (NO2) level in Hudson, New Hampshire at the moment is 1.714 ppb.
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