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)
38
Good
Chapel Hill, North Carolina
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.84 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.60 μg/m³
0
55
155
255
425
605+
40.90 ppb
0
55
71
86
201
201+
0.76 ppb
0
36
76
186
605
1005+
6.45 ppb
0
54
101
361
1250
2050+
0.29 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Chapel Hill, North Carolina
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AQI 34
Good
4.04μg/m³
PM2.5
19.73μg/m³
PM10
36.97ppb
O3
0.63ppb
SO2
7.83ppb
NO2
0.23ppm
CO
AQI 37
Good
4.06μg/m³
PM2.5
8.72μg/m³
PM10
40.23ppb
O3
0.65ppb
SO2
10.03ppb
NO2
0.25ppm
CO
AQI 33
Good
3.76μg/m³
PM2.5
12.94μg/m³
PM10
35.91ppb
O3
0.66ppb
SO2
13.68ppb
NO2
0.29ppm
CO
AQI 33
Good
3.97μg/m³
PM2.5
10.36μg/m³
PM10
36.18ppb
O3
0.67ppb
SO2
8.22ppb
NO2
0.25ppm
CO
AQI 37
Good
4.02μg/m³
PM2.5
11.68μg/m³
PM10
39.59ppb
O3
0.61ppb
SO2
6.44ppb
NO2
0.22ppm
CO
AQI 33
Good
3.76μg/m³
PM2.5
13.22μg/m³
PM10
35.79ppb
O3
0.66ppb
SO2
13.32ppb
NO2
0.28ppm
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 03:00:00 on 2026-03-09.
In the last 24 hours, the best air quality in Chapel Hill, North Carolina was observed at 06:00:00 on 2026-03-09.
As of now, the AQI in Chapel Hill, North Carolina is 38, indicating Good conditions.
Chapel Hill, North Carolina air has the highest levels of O3.
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 4.845 μg/m3.
The PM10 concentration in Chapel Hill, North Carolina is 10.603 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Chapel Hill, North Carolina is 0.288 ppm.
Currently, Chapel Hill, North Carolina has a sulfur dioxide (SO2) concentration of 0.756 ppb.
The current ozone (O3) level in Chapel Hill, North Carolina at the moment is 40.898 ppm.
Nitrogen dioxide (NO2) level in Chapel Hill, North Carolina at the moment is 6.446 ppb.
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