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)
19
Good
Milford, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.25 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.18 μg/m³
0
55
155
255
425
605+
20.41 ppb
0
55
71
86
201
201+
0.65 ppb
0
36
76
186
605
1005+
2.05 ppb
0
54
101
361
1250
2050+
0.14 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 22
Good
3.84μg/m³
PM2.5
9.09μg/m³
PM10
19.19ppb
O3
0.73ppb
SO2
2.07ppb
NO2
0.13ppm
CO
AQI 22
Good
3.84μg/m³
PM2.5
8.63μg/m³
PM10
20.35ppb
O3
0.75ppb
SO2
2.09ppb
NO2
0.13ppm
CO
AQI 18
Good
2.90μg/m³
PM2.5
10.30μg/m³
PM10
19.13ppb
O3
0.83ppb
SO2
2.20ppb
NO2
0.13ppm
CO
AQI 22
Good
4.10μg/m³
PM2.5
15.80μg/m³
PM10
22.27ppb
O3
0.79ppb
SO2
3.05ppb
NO2
0.13ppm
CO
AQI 22
Good
4.00μg/m³
PM2.5
17.54μg/m³
PM10
20.68ppb
O3
0.76ppb
SO2
2.12ppb
NO2
0.13ppm
CO
AQI 27
Good
4.68μg/m³
PM2.5
23.21μg/m³
PM10
19.25ppb
O3
0.66ppb
SO2
3.17ppb
NO2
0.15ppm
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 06:00:00 on 2026-11-12.
In the last 24 hrs, the best air quality in Milford, New Hampshire was observed at 10:00:00 on 2026-11-12.
The current air quality in Milford, New Hampshire is 19, 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 3.252 μg/m3.
The current PM10 concentration at Milford, New Hampshire is 10.183 μg/m3.
The current carbon monoxide (CO) concentration at Milford, New Hampshire is 0.138 ppm.
The current sulfur dioxide (SO2) concentration at Milford, New Hampshire is 0.651 ppb.
The current ozone (O3) concentration at Milford, New Hampshire is 20.411 ppm.
The current nitrogen dioxide (NO2) concentration at Milford, New Hampshire is 2.05 ppb.
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