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)
38
Good
Holly Springs, North Carolina
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
7.44 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
23.58 μg/m³
0
55
155
255
425
605+
40.63 ppb
0
55
71
86
201
201+
0.43 ppb
0
36
76
186
605
1005+
2.67 ppb
0
54
101
361
1250
2050+
0.28 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Holly Springs, North Carolina
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AQI 33
Good
5.95μg/m³
PM2.5
29.73μg/m³
PM10
27.03ppb
O3
0.54ppb
SO2
2.71ppb
NO2
0.25ppm
CO
AQI 22
Good
3.79μg/m³
PM2.5
24.42μg/m³
PM10
23.02ppb
O3
0.51ppb
SO2
3.02ppb
NO2
0.26ppm
CO
AQI 23
Good
3.29μg/m³
PM2.5
11.39μg/m³
PM10
25.17ppb
O3
0.50ppb
SO2
3.62ppb
NO2
0.29ppm
CO
AQI 23
Good
3.31μg/m³
PM2.5
11.39μg/m³
PM10
25.07ppb
O3
0.50ppb
SO2
3.70ppb
NO2
0.29ppm
CO
AQI 33
Good
5.62μg/m³
PM2.5
14.74μg/m³
PM10
23.64ppb
O3
0.53ppb
SO2
2.31ppb
NO2
0.23ppm
CO
AQI 27
Good
5.32μg/m³
PM2.5
16.20μg/m³
PM10
27.09ppb
O3
0.52ppb
SO2
2.14ppb
NO2
0.23ppm
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 04:00:00 on 2025-07-19.
In the last 24 hrs, the best air quality in Holly Springs, North Carolina was observed at 11:00:00 on 2025-07-20.
The current air quality in Holly Springs, North Carolina is 27, 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 4.976 μg/m3.
The current PM10 concentration at Holly Springs, North Carolina is 20.931 μg/m3.
The current carbon monoxide (CO) concentration at Holly Springs, North Carolina is 0.24 ppm.
The current sulfur dioxide (SO2) concentration at Holly Springs, North Carolina is 0.451 ppb.
The current ozone (O3) concentration at Holly Springs, North Carolina is 29.108 ppm.
The current nitrogen dioxide (NO2) concentration at Holly Springs, North Carolina is 2.545 ppb.
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