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)
49
Good
Holly Springs, North Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.58 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.11 μg/m³
0
55
155
255
425
605+
42.57 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
5.00 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Holly Springs, North Carolina
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AQI 58
Moderate
9.46μg/m³
PM2.5
33.14μg/m³
PM10
57.09ppb
O3
0.46ppb
SO2
9.81ppb
NO2
0.28ppm
CO
AQI 64
Moderate
8.82μg/m³
PM2.5
50.26μg/m³
PM10
59.29ppb
O3
0.44ppb
SO2
6.08ppb
NO2
0.28ppm
CO
AQI 54
Moderate
9.84μg/m³
PM2.5
38.35μg/m³
PM10
55.50ppb
O3
0.47ppb
SO2
7.35ppb
NO2
0.28ppm
CO
AQI 54
Moderate
9.86μg/m³
PM2.5
38.17μg/m³
PM10
55.53ppb
O3
0.47ppb
SO2
7.12ppb
NO2
0.28ppm
CO
AQI 54
Moderate
8.00μg/m³
PM2.5
32.94μg/m³
PM10
56.12ppb
O3
0.50ppb
SO2
6.76ppb
NO2
0.29ppm
CO
AQI 51
Moderate
7.92μg/m³
PM2.5
25.38μg/m³
PM10
55.26ppb
O3
0.49ppb
SO2
10.77ppb
NO2
0.29ppm
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 09:00:00 on 2026-04-23.
In the last 24 hrs, the best air quality in Holly Springs, North Carolina was observed at 07:00:00 on 2026-04-23.
The current air quality in Holly Springs, North Carolina is 64, categorized as Moderate 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 8.87 μg/m3.
The current PM10 concentration at Holly Springs, North Carolina is 33.525 μg/m3.
The current carbon monoxide (CO) concentration at Holly Springs, North Carolina is 0.28 ppm.
The current sulfur dioxide (SO2) concentration at Holly Springs, North Carolina is 0.449 ppb.
The current ozone (O3) concentration at Holly Springs, North Carolina is 58.975 ppm.
The current nitrogen dioxide (NO2) concentration at Holly Springs, North Carolina is 9.808 ppb.
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