Stay updated with real-time air quality in Holly Springs, North Carolina 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)
36
Good
Holly Springs, North Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.93 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.77 μg/m³
0
55
155
255
425
605+
39.44 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
6.39 ppb
0
54
101
361
1250
2050+
0.24 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Holly Springs, North Carolina
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AQI 38
Good
6.70μg/m³
PM2.5
29.10μg/m³
PM10
36.15ppb
O3
0.81ppb
SO2
5.99ppb
NO2
0.27ppm
CO
AQI 36
Good
4.83μg/m³
PM2.5
12.05μg/m³
PM10
39.18ppb
O3
0.79ppb
SO2
6.92ppb
NO2
0.30ppm
CO
AQI 37
Good
6.45μg/m³
PM2.5
24.27μg/m³
PM10
39.51ppb
O3
0.84ppb
SO2
9.76ppb
NO2
0.37ppm
CO
AQI 37
Good
6.41μg/m³
PM2.5
23.94μg/m³
PM10
39.53ppb
O3
0.84ppb
SO2
9.96ppb
NO2
0.37ppm
CO
AQI 37
Good
5.08μg/m³
PM2.5
10.46μg/m³
PM10
39.90ppb
O3
0.88ppb
SO2
5.43ppb
NO2
0.25ppm
CO
AQI 34
Good
5.11μg/m³
PM2.5
15.36μg/m³
PM10
36.63ppb
O3
0.86ppb
SO2
5.82ppb
NO2
0.26ppm
CO
Air quality data and pollutant measurements for North Carolina, 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 Holly Springs, North Carolina is updated every hour.
The worst air quality in Holly Springs, North Carolina in the last 24 hours was observed at 03:00:00 on 2026-03-09.
In the last 24 hrs, the best air quality in Holly Springs, North Carolina was observed at 10:00:00 on 2026-03-09.
The current air quality in Holly Springs, North Carolina is 36, categorized as Good based on real-time data.
The most common pollutant in Holly Springs, North Carolina is O3.
If the air quality in Holly Springs, North Carolina is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Holly Springs, North Carolina is 5.929 μg/m3.
The current PM10 concentration at Holly Springs, North Carolina is 14.766 μg/m3.
The current carbon monoxide (CO) concentration at Holly Springs, North Carolina is 0.239 ppm.
The current sulfur dioxide (SO2) concentration at Holly Springs, North Carolina is 0.543 ppb.
The current ozone (O3) concentration at Holly Springs, North Carolina is 39.443 ppm.
The current nitrogen dioxide (NO2) concentration at Holly Springs, North Carolina is 6.392 ppb.
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