Chapel Hill, North Carolina
Hourly Air Quality Forecast - AQI (US EPA)
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
2.08 µg/m³
- PM10:
5.95 µg/m³
- O3:
0.030 ppm
- NO2:
1.2 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.96 µg/m³
- PM10:
5.97 µg/m³
- O3:
0.030 ppm
- NO2:
1.2 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.81 µg/m³
- PM10:
5.87 µg/m³
- O3:
0.030 ppm
- NO2:
1.1 ppb
- SO2:
0.1 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:
1.72 µg/m³
- PM10:
5.82 µg/m³
- O3:
0.030 ppm
- NO2:
1.3 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.67 µg/m³
- PM10:
5.79 µg/m³
- O3:
0.030 ppm
- NO2:
1.5 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.62 µg/m³
- PM10:
5.64 µg/m³
- O3:
0.029 ppm
- NO2:
1.7 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.57 µg/m³
- PM10:
5.35 µg/m³
- O3:
0.029 ppm
- NO2:
1.6 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.57 µg/m³
- PM10:
4.89 µg/m³
- O3:
0.032 ppm
- NO2:
1.2 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.36 µg/m³
- PM10:
3.38 µg/m³
- O3:
0.051 ppm
- NO2:
0.6 ppb
- SO2:
0.1 ppb
- CO:
0.11 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:
1.36 µg/m³
- PM10:
2.94 µg/m³
- O3:
0.055 ppm
- NO2:
0.3 ppb
- SO2:
0.1 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.
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.49 µg/m³
- PM10:
2.91 µg/m³
- O3:
0.056 ppm
- NO2:
0.3 ppb
- SO2:
0.1 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.
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.63 µg/m³
- PM10:
2.99 µg/m³
- O3:
0.056 ppm
- NO2:
0.3 ppb
- SO2:
0.1 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.
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.76 µg/m³
- PM10:
3.16 µg/m³
- O3:
0.056 ppm
- NO2:
0.3 ppb
- SO2:
0.1 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.
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.99 µg/m³
- PM10:
3.52 µg/m³
- O3:
0.056 ppm
- NO2:
0.4 ppb
- SO2:
0.1 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:
2.29 µg/m³
- PM10:
4.63 µg/m³
- O3:
0.050 ppm
- NO2:
1.2 ppb
- SO2:
0.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
2.53 µg/m³
- PM10:
6.17 µg/m³
- O3:
0.040 ppm
- NO2:
2.2 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
2.71 µg/m³
- PM10:
7.44 µg/m³
- O3:
0.035 ppm
- NO2:
2.7 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
2.79 µg/m³
- PM10:
8.34 µg/m³
- O3:
0.031 ppm
- NO2:
3 ppb
- SO2:
0.1 ppb
- CO:
0.14 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:
2.83 µg/m³
- PM10:
8.35 µg/m³
- O3:
0.030 ppm
- NO2:
2.8 ppb
- SO2:
0.1 ppb
- CO:
0.14 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:
2.87 µg/m³
- PM10:
7.49 µg/m³
- O3:
0.032 ppm
- NO2:
2.5 ppb
- SO2:
0.1 ppb
- CO:
0.13 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
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