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Davis County—Trend Charts

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PM 2.5 PM 10 Ozone Nitrogen Oxides (NO) Carbon Monoxide (CO) Sulfur Dioxide (SO2) Temperature Relative Humidity Wind Solar Radiation

Wind advisory in effect. A possibility of blowing dust. Try to avoid outdoor activity if blowing dust is observed. People with existing heart or respiratory ailments should take proper precautions.

Last Updated: April 1, 2025 4:00 AM
(Data Not Quality Assured)

Created with Highcharts 8.0.4Click and drag in the plot area to zoom in. Click on the label in the legend to show or hide the line.PM2.5 24-Hr (ug/m3)PM2.5 1-Hr (ug/m3)03-2803-2903-3003-3104- 101020304050600102030405060
Created with Highcharts 8.0.4Click and drag in the plot area to zoom in. Click on the label in the legend to show or hide the line.Ozone 8-Hr (ppm)Ozone 1-Hr (ppm)03-2803-2903-3003-3104- 100.020.040.0600.020.040.06
Created with Highcharts 8.0.4Click and drag in the plot area to zoom in. Click on the label in the legend to show or hide the line.NO (ppm)NO2 (ppm)03-2803-2903-3003-3104- 100.050.100.050.1
Created with Highcharts 8.0.4Click and drag in the plot area to zoom in. Click on the label in the legend to show or hide the line.Temperature (F)Humidity (%)03-2803-2903-3003-3104- 1020406080100020406080100
Created with Highcharts 8.0.4Click and drag in the plot area to zoom in. Click on the label in the legend to show or hide the line.Wind DirectionWind Speed (mph)03-2803-2903-3003-3104- 101020300102030
Created with Highcharts 8.0.4Click and drag in the plot area to zoom in. Click on the label in the legend to show or hide the line.1-Hr Solar (w/m2)03-2803-2903-3003-3104- 10200400600800100002004006008001000
Action Forecast
Unrestricted Action
Voluntary Action
Mandatory Action
Health Forecast
Air Quality Index (AQI) PM 2.5 Ozone
Good 0 - 9.0 µg/m3 0 - 0.054 ppm
Moderate 9.1 - 35.4 µg/m3 0.055 - 0.070 ppm
Unhealthy for Sensitive Groups 35.5 - 55.4 µg/m3 0.071 - 0.085 ppm
Unhealthy 55.5 - 125.4 µg/m3 0.086 - 0.105 ppm
Very Unhealthy 125.5 - 225.4 µg/m3 0.106 - 0.200 ppm
Hazardous Above 225.5 µg/m3 Above 0.201 ppm
Based on a 24-hour average. Based on an 8-hour average.

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