Stay updated with real-time air quality in Milford, 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)
37
Good
Milford, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.32 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.28 μg/m³
0
55
155
255
425
605+
40.01 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
10.02 ppb
0
54
101
361
1250
2050+
0.26 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Milford, New Hampshire
Milford, New Hampshire
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AQI 37
Good
4.67μg/m³
PM2.5
28.46μg/m³
PM10
40.16ppb
O3
0.63ppb
SO2
9.73ppb
NO2
0.26ppm
CO
AQI 33
Good
4.74μg/m³
PM2.5
24.38μg/m³
PM10
35.94ppb
O3
0.60ppb
SO2
9.59ppb
NO2
0.25ppm
CO
AQI 33
Good
5.15μg/m³
PM2.5
33.93μg/m³
PM10
35.84ppb
O3
0.67ppb
SO2
9.48ppb
NO2
0.25ppm
CO
AQI 33
Good
4.78μg/m³
PM2.5
19.19μg/m³
PM10
36.09ppb
O3
0.47ppb
SO2
8.88ppb
NO2
0.25ppm
CO
AQI 38
Good
6.80μg/m³
PM2.5
38.01μg/m³
PM10
35.17ppb
O3
0.47ppb
SO2
6.20ppb
NO2
0.24ppm
CO
AQI 38
Good
4.72μg/m³
PM2.5
26.64μg/m³
PM10
40.52ppb
O3
0.52ppb
SO2
8.84ppb
NO2
0.27ppm
CO
Air quality data and pollutant measurements for New Hampshire, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Milford, New Hampshire is updated every hour.
The worst air quality in Milford, New Hampshire in the last 24 hours was observed at 02:00:00 on 2025-12-28.
In the last 24 hrs, the best air quality in Milford, New Hampshire was observed at 11:00:00 on 2025-12-28.
The current air quality in Milford, New Hampshire is 37, categorized as Good based on real-time data.
The most common pollutant in Milford, New Hampshire is O3.
If the air quality in Milford, New Hampshire is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Milford, New Hampshire is 3.318 μg/m3.
The current PM10 concentration at Milford, New Hampshire is 8.28 μg/m3.
The current carbon monoxide (CO) concentration at Milford, New Hampshire is 0.264 ppm.
The current sulfur dioxide (SO2) concentration at Milford, New Hampshire is 0.605 ppb.
The current ozone (O3) concentration at Milford, New Hampshire is 40.013 ppm.
The current nitrogen dioxide (NO2) concentration at Milford, New Hampshire is 10.02 ppb.
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