Chapel Hill, North Carolina
Hourly Air Quality Forecast - AQI (US EPA)
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
5.83 µg/m³
- PM10:
6.85 µg/m³
- O3:
0.041 ppm
- NO2:
0.4 ppb
- SO2:
0.5 ppb
- CO:
0.10 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
5.7 µg/m³
- PM10:
6.38 µg/m³
- O3:
0.048 ppm
- NO2:
0.3 ppb
- SO2:
0.4 ppb
- CO:
0.10 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
5.81 µg/m³
- PM10:
6.44 µg/m³
- O3:
0.050 ppm
- NO2:
0.3 ppb
- SO2:
0.4 ppb
- CO:
0.10 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
6.02 µg/m³
- PM10:
6.63 µg/m³
- O3:
0.052 ppm
- NO2:
0.3 ppb
- SO2:
0.3 ppb
- CO:
0.10 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
6.17 µg/m³
- PM10:
6.8 µg/m³
- O3:
0.054 ppm
- NO2:
0.3 ppb
- SO2:
0.3 ppb
- CO:
0.10 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
6.26 µg/m³
- PM10:
6.93 µg/m³
- O3:
0.054 ppm
- NO2:
0.4 ppb
- SO2:
0.3 ppb
- CO:
0.11 ppm
Health Recommendations:
Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
6.47 µg/m³
- PM10:
7.73 µg/m³
- O3:
0.048 ppm
- NO2:
1.2 ppb
- SO2:
0.3 ppb
- CO:
0.11 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
6.72 µg/m³
- PM10:
8.99 µg/m³
- O3:
0.038 ppm
- NO2:
2.4 ppb
- SO2:
0.2 ppb
- CO:
0.12 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
PM2.5
Details
Pollutant Concentrations:
- PM2.5:
6.88 µg/m³
- PM10:
10.04 µg/m³
- O3:
0.031 ppm
- NO2:
3.3 ppb
- SO2:
0.2 ppb
- CO:
0.13 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
PM2.5
Details
Pollutant Concentrations:
- PM2.5:
6.88 µg/m³
- PM10:
10.53 µg/m³
- O3:
0.027 ppm
- NO2:
3.5 ppb
- SO2:
0.2 ppb
- CO:
0.13 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
PM2.5
Details
Pollutant Concentrations:
- PM2.5:
6.87 µg/m³
- PM10:
10.49 µg/m³
- O3:
0.023 ppm
- NO2:
3.4 ppb
- SO2:
0.1 ppb
- CO:
0.13 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
PM2.5
Details
Pollutant Concentrations:
- PM2.5:
6.8 µg/m³
- PM10:
9.97 µg/m³
- O3:
0.021 ppm
- NO2:
3.3 ppb
- SO2:
0.2 ppb
- CO:
0.13 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
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