Stay updated with real-time air quality in Derry, 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)
24
Good
Derry, New Hampshire
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.52 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
8.90 μg/m³
0
55
155
255
425
605+
25.75 ppb
0
55
71
86
201
201+
1.16 ppb
0
36
76
186
605
1005+
0.93 ppb
0
54
101
361
1250
2050+
0.12 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Derry, New Hampshire
Derry, New Hampshire
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AQI 22
Good
3.98μg/m³
PM2.5
8.44μg/m³
PM10
23.76ppb
O3
1.26ppb
SO2
0.59ppb
NO2
0.10ppm
CO
AQI 22
Good
3.85μg/m³
PM2.5
11.45μg/m³
PM10
22.53ppb
O3
1.04ppb
SO2
1.20ppb
NO2
0.12ppm
CO
AQI 22
Good
3.53μg/m³
PM2.5
12.16μg/m³
PM10
21.14ppb
O3
0.84ppb
SO2
1.17ppb
NO2
0.14ppm
CO
AQI 20
Good
3.39μg/m³
PM2.5
12.46μg/m³
PM10
22.03ppb
O3
0.91ppb
SO2
1.69ppb
NO2
0.14ppm
CO
AQI 22
Good
3.88μg/m³
PM2.5
11.13μg/m³
PM10
20.16ppb
O3
0.90ppb
SO2
1.33ppb
NO2
0.14ppm
CO
AQI 20
Good
3.46μg/m³
PM2.5
11.99μg/m³
PM10
21.80ppb
O3
0.78ppb
SO2
1.20ppb
NO2
0.14ppm
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 Derry, New Hampshire is updated every hour.
The worst air quality in Derry, New Hampshire in the last 24 hours was observed at 05:00:00 on 2026-08-13.
In the last 24 hrs, the best air quality in Derry, New Hampshire was observed at 04:00:00 on 2026-08-14.
The current air quality in Derry, New Hampshire is 24, categorized as Good based on real-time data.
The most common pollutant in Derry, New Hampshire is O3.
If the air quality in Derry, New Hampshire is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Derry, New Hampshire is 3.522 μg/m3.
The current PM10 concentration at Derry, New Hampshire is 8.904 μg/m3.
The current carbon monoxide (CO) concentration at Derry, New Hampshire is 0.115 ppm.
The current sulfur dioxide (SO2) concentration at Derry, New Hampshire is 1.16 ppb.
The current ozone (O3) concentration at Derry, New Hampshire is 25.746 ppm.
The current nitrogen dioxide (NO2) concentration at Derry, New Hampshire is 0.929 ppb.
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