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
9.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
34.88 μg/m³
0
55
155
255
425
605+
22.77 ppb
0
55
71
86
201
201+
0.36 ppb
0
36
76
186
605
1005+
22.10 ppb
0
54
101
361
1250
2050+
0.43 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Holly Springs, North Carolina
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AQI 49
Good
9.30μg/m³
PM2.5
35.35μg/m³
PM10
22.69ppb
O3
0.36ppb
SO2
21.89ppb
NO2
0.43ppm
CO
AQI 56
Moderate
11.53μg/m³
PM2.5
41.34μg/m³
PM10
23.03ppb
O3
0.34ppb
SO2
27.06ppb
NO2
0.45ppm
CO
AQI 56
Moderate
11.54μg/m³
PM2.5
39.78μg/m³
PM10
27.05ppb
O3
0.38ppb
SO2
23.48ppb
NO2
0.48ppm
CO
AQI 54
Moderate
11.41μg/m³
PM2.5
38.85μg/m³
PM10
27.39ppb
O3
0.38ppb
SO2
23.60ppb
NO2
0.49ppm
CO
AQI 56
Moderate
12.28μg/m³
PM2.5
35.69μg/m³
PM10
25.61ppb
O3
0.37ppb
SO2
23.71ppb
NO2
0.42ppm
CO
AQI 56
Moderate
11.90μg/m³
PM2.5
30.43μg/m³
PM10
25.08ppb
O3
0.35ppb
SO2
21.93ppb
NO2
0.43ppm
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 05:00:00 on 2026-01-22.
In the last 24 hrs, the best air quality in Holly Springs, North Carolina was observed at 11:00:00 on 2026-01-22.
The current air quality in Holly Springs, North Carolina is 49, categorized as Good based on real-time data.
The most common pollutant in Holly Springs, North Carolina is PM2.5.
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 9.345 μg/m3.
The current PM10 concentration at Holly Springs, North Carolina is 34.878 μg/m3.
The current carbon monoxide (CO) concentration at Holly Springs, North Carolina is 0.432 ppm.
The current sulfur dioxide (SO2) concentration at Holly Springs, North Carolina is 0.359 ppb.
The current ozone (O3) concentration at Holly Springs, North Carolina is 22.767 ppm.
The current nitrogen dioxide (NO2) concentration at Holly Springs, North Carolina is 22.1 ppb.
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