Framingham, Massachusetts
Hourly Air Quality Forecast - AQI (US EPA)
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
2.26 µg/m³
- PM10:
2.65 µg/m³
- O3:
0.063 ppm
- NO2:
0.7 ppb
- SO2:
0.2 ppb
- CO:
0.14 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:
1.84 µg/m³
- PM10:
2.2 µg/m³
- O3:
0.061 ppm
- NO2:
0.7 ppb
- SO2:
0.2 ppb
- CO:
0.14 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:
1.29 µg/m³
- PM10:
1.64 µg/m³
- O3:
0.058 ppm
- NO2:
0.8 ppb
- SO2:
0.2 ppb
- CO:
0.13 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:
0.8 µg/m³
- PM10:
1.14 µg/m³
- O3:
0.053 ppm
- NO2:
1.1 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:
O3
Details
Pollutant Concentrations:
- PM2.5:
0.6 µg/m³
- PM10:
0.98 µg/m³
- O3:
0.049 ppm
- NO2:
1.7 ppb
- SO2:
0.2 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:
0.56 µg/m³
- PM10:
0.97 µg/m³
- O3:
0.047 ppm
- NO2:
2.1 ppb
- SO2:
0.2 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:
0.57 µg/m³
- PM10:
1 µg/m³
- O3:
0.045 ppm
- NO2:
2 ppb
- SO2:
0.2 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:
0.61 µg/m³
- PM10:
1.06 µg/m³
- O3:
0.045 ppm
- NO2:
2 ppb
- SO2:
0.2 ppb
- CO:
0.15 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:
0.65 µg/m³
- PM10:
1.11 µg/m³
- O3:
0.045 ppm
- NO2:
2 ppb
- SO2:
0.2 ppb
- CO:
0.15 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
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