Hourly Air Quality Forecast - AQI (US EPA)
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
1.12 µg/m³
- PM10:
2.85 µg/m³
- O3:
0.043 ppm
- NO2:
2.7 ppb
- SO2:
0.4 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:
1.26 µg/m³
- PM10:
3.14 µg/m³
- O3:
0.042 ppm
- NO2:
2.8 ppb
- SO2:
0.4 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:
1.44 µg/m³
- PM10:
3.44 µg/m³
- O3:
0.041 ppm
- NO2:
3 ppb
- SO2:
0.4 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:
1.73 µg/m³
- PM10:
3.9 µg/m³
- O3:
0.040 ppm
- NO2:
3.9 ppb
- SO2:
0.4 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:
2.05 µg/m³
- PM10:
4.37 µg/m³
- O3:
0.039 ppm
- NO2:
5.4 ppb
- SO2:
0.5 ppb
- CO:
0.16 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:
2.38 µg/m³
- PM10:
4.71 µg/m³
- O3:
0.040 ppm
- NO2:
5.1 ppb
- SO2:
0.7 ppb
- CO:
0.17 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:
2.38 µg/m³
- PM10:
4.08 µg/m³
- O3:
0.050 ppm
- NO2:
3.2 ppb
- SO2:
0.9 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:
2.57 µg/m³
- PM10:
4.1 µg/m³
- O3:
0.054 ppm
- NO2:
2.4 ppb
- SO2:
1 ppb
- CO:
0.14 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:
2.81 µg/m³
- PM10:
4.3 µg/m³
- O3:
0.055 ppm
- NO2:
2 ppb
- SO2:
1 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.
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
2.69 µg/m³
- PM10:
3.73 µg/m³
- O3:
0.062 ppm
- NO2:
1.1 ppb
- SO2:
0.8 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.
Moderate air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
2.74 µg/m³
- PM10:
3.59 µg/m³
- O3:
0.065 ppm
- NO2:
0.8 ppb
- SO2:
0.6 ppb
- CO:
0.12 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:
2.53 µg/m³
- PM10:
3.32 µg/m³
- O3:
0.065 ppm
- NO2:
0.7 ppb
- SO2:
0.6 ppb
- CO:
0.12 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:
2.44 µg/m³
- PM10:
3.27 µg/m³
- O3:
0.066 ppm
- NO2:
0.7 ppb
- SO2:
0.6 ppb
- CO:
0.12 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:
2.39 µg/m³
- PM10:
3.3 µg/m³
- O3:
0.065 ppm
- NO2:
0.9 ppb
- SO2:
0.6 ppb
- CO:
0.12 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:
2.32 µg/m³
- PM10:
3.28 µg/m³
- O3:
0.064 ppm
- NO2:
1.2 ppb
- SO2:
0.6 ppb
- CO:
0.12 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:
2.31 µg/m³
- PM10:
3.34 µg/m³
- O3:
0.063 ppm
- NO2:
1.4 ppb
- SO2:
0.7 ppb
- CO:
0.12 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:
2.35 µg/m³
- PM10:
3.45 µg/m³
- O3:
0.062 ppm
- NO2:
1.5 ppb
- SO2:
0.7 ppb
- CO:
0.12 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:
2.38 µg/m³
- PM10:
3.51 µg/m³
- O3:
0.062 ppm
- NO2:
1.4 ppb
- SO2:
0.7 ppb
- CO:
0.12 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:
2.28 µg/m³
- PM10:
3.5 µg/m³
- O3:
0.061 ppm
- NO2:
1.3 ppb
- SO2:
0.6 ppb
- CO:
0.12 ppm
Health Recommendations:
Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.
Weather Alerts and Warnings for Round Rock
Moderate
Expected
Observed
Special Weather Statement
Special Weather Statement issued March 16 at 3:59PM CDT by NWS Austin/San Antonio TX
Mar 16, 3:59 PM
→ Mar 17, 9:00 AM
A light freeze with low temperatures mainly between 30 and 32
degrees is forecast Tuesday morning for most of the Hill Country,
as well as portions of the I-35 corridor and Coastal Plains, with
the aid of light winds and clearing skies. A few of the lowest
lying areas may briefly see temperatures of 27 to 30 degrees.
Freezing temperatures may set in after midnight before all areas
warm above freezing by about 9 AM Tuesday morning.
This cold episode could bring challenges as the growing season may
have started over portions of the region. Therefore, we recommend
to protect Plants, People, and Pets. After Tuesday morning, expect
warmer temperatures to prevail through the rest of the week.
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