Stay updated with real-time air quality in Chapel Hill, 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
Chapel Hill, North Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
9.07 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
13.97 μg/m³
0
55
155
255
425
605+
30.34 ppb
0
55
71
86
201
201+
0.27 ppb
0
36
76
186
605
1005+
5.76 ppb
0
54
101
361
1250
2050+
0.27 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Chapel Hill, North Carolina
Chapel Hill, North Carolina
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AQI 44
Good
8.16μg/m³
PM2.5
26.90μg/m³
PM10
28.86ppb
O3
0.30ppb
SO2
5.37ppb
NO2
0.27ppm
CO
AQI 33
Good
6.44μg/m³
PM2.5
12.74μg/m³
PM10
30.37ppb
O3
0.31ppb
SO2
6.52ppb
NO2
0.27ppm
CO
AQI 49
Good
9.47μg/m³
PM2.5
33.38μg/m³
PM10
28.19ppb
O3
0.31ppb
SO2
8.92ppb
NO2
0.29ppm
CO
AQI 44
Good
7.55μg/m³
PM2.5
10.63μg/m³
PM10
27.61ppb
O3
0.31ppb
SO2
5.93ppb
NO2
0.27ppm
CO
AQI 44
Good
7.82μg/m³
PM2.5
19.80μg/m³
PM10
29.91ppb
O3
0.29ppb
SO2
4.36ppb
NO2
0.28ppm
CO
AQI 49
Good
9.34μg/m³
PM2.5
33.46μg/m³
PM10
28.21ppb
O3
0.31ppb
SO2
8.66ppb
NO2
0.29ppm
CO
Air quality and pollutant data for North Carolina, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for Chapel Hill, North Carolina is updated every hour for accuracy.
In the past 24 hours, the air quality in Chapel Hill, North Carolina was at its worst at 09:00:00 on 2026-07-22.
In the last 24 hours, the best air quality in Chapel Hill, North Carolina was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Chapel Hill, North Carolina is 49, indicating Good conditions.
Chapel Hill, North Carolina air has the highest levels of PM2.5.
Poor air quality in Chapel Hill, North Carolina means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Chapel Hill, North Carolina are currently 9.071 μg/m3.
The PM10 concentration in Chapel Hill, North Carolina is 13.975 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chapel Hill, North Carolina is 0.274 ppm.
Currently, Chapel Hill, North Carolina has a sulfur dioxide (SO2) concentration of 0.269 ppb.
The current ozone (O3) level in Chapel Hill, North Carolina at the moment is 30.339 ppm.
Nitrogen dioxide (NO2) level in Chapel Hill, North Carolina at the moment is 5.759 ppb.
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