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)
54
Moderate
Chapel Hill, North Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
11.35 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
27.93 μg/m³
0
55
155
255
425
605+
36.44 ppb
0
55
71
86
201
201+
0.44 ppb
0
36
76
186
605
1005+
2.72 ppb
0
54
101
361
1250
2050+
0.32 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 54
Moderate
11.12μg/m³
PM2.5
31.66μg/m³
PM10
38.52ppb
O3
0.44ppb
SO2
2.64ppb
NO2
0.31ppm
CO
AQI 49
Good
6.44μg/m³
PM2.5
12.27μg/m³
PM10
53.10ppb
O3
0.45ppb
SO2
2.88ppb
NO2
0.33ppm
CO
AQI 54
Moderate
11.11μg/m³
PM2.5
39.54μg/m³
PM10
42.81ppb
O3
0.45ppb
SO2
3.45ppb
NO2
0.38ppm
CO
AQI 54
Moderate
10.93μg/m³
PM2.5
36.55μg/m³
PM10
48.33ppb
O3
0.44ppb
SO2
2.83ppb
NO2
0.32ppm
CO
AQI 54
Moderate
10.64μg/m³
PM2.5
31.10μg/m³
PM10
41.83ppb
O3
0.45ppb
SO2
2.60ppb
NO2
0.29ppm
CO
AQI 54
Moderate
11.09μg/m³
PM2.5
39.79μg/m³
PM10
43.48ppb
O3
0.45ppb
SO2
3.39ppb
NO2
0.37ppm
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 05:00:00 on 2026-08-16.
In the last 24 hours, the best air quality in Chapel Hill, North Carolina was observed at 12:00:00 on 2026-08-16.
As of now, the AQI in Chapel Hill, North Carolina is 54, indicating Moderate 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 11.354 μg/m3.
The PM10 concentration in Chapel Hill, North Carolina is 27.931 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chapel Hill, North Carolina is 0.315 ppm.
Currently, Chapel Hill, North Carolina has a sulfur dioxide (SO2) concentration of 0.443 ppb.
The current ozone (O3) level in Chapel Hill, North Carolina at the moment is 36.443 ppm.
Nitrogen dioxide (NO2) level in Chapel Hill, North Carolina at the moment is 2.723 ppb.
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