Current Ozone Activity

No Ozone Action Day for Saturday, July 19, 2025
Current Design Value is: 75 ppb*
Current Air Quality Index (AQI) for Saturday, July 19, 2025 6:00:00 AM  
 
These are not monitor values. These are AQI values. See table below.
19 aqi 
Ozone Color Legend
     
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Air Quality Index Values and Ozone Concentration
Air Quality Index(AQI) Values 8-hour Ozone Levels (ppb) Levels of Health Concern Colors
0-50 0-54 Good Green
51-100 55-70 Moderate Yellow
101-150 71-85 Unhealthy for Sensitive Groups Orange
151 to 200 86-105 Unhealthy Red
201 to 300 106-200 Very Unhealthy Purple
301 to 500+ Not Defined Hazardous Maroon

Current AQI Animation
Animation Courtesy of AirNow

These are not monitor values. These are AQI values. See table above.
 

 

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TCEQ Current Ozone Monitor Map 2018 Ozone Season Calendar ozone monitor scorecard 2008 8-hour ozone trendline TCEQ Air Quality Forecast
TCEQ Map of Current
Monitor Levels  
2018 Ozone Season Calendar
Current as of 6-26-18
Ozone Monitor
Scorecard
Current as of 6-26-18
Ozone Design Value Trendline
Current as of 6-26-18
TCEQ AIr Quality
Forecast

 

Link to Air North Texas Webpage

 

Please contact Jenny Narvaez, jnarvaez@nctcog.org with any questions.

  *Data not certified by TCEQ, current as of Friday, July 18, 2025
Notice:   Because the primary pollutant for the Dallas-Fort Worth region is ozone, we have chosen to display specific charts, data, and images reflective of this pollutant’s measured concentrations; therefore, the numbers above correspond specifically with ozone concentrations. Ozone levels are mapped to colors based on a EPA's projected eight-hour average calculated from the measured one-hour levels.