At 3:01 p.m. on Tuesday, the Texas Commission on Environmental Quality reported an air quality alert in effect until Wednesday at 6:15 p.m. The alert is for Wise, Denton, Collin, Parker, Tarrant, Dallas, Hood, Johnson, Hunt, Rockwall, Kaufman, Ellis and Henderson counties.

The Texas Commission on Environmental Quality (TCEQ) has declared an Ozone Action Day for the Dallas-Fort Worth area on Wednesday, October 1, 2025. Atmospheric conditions on this day are anticipated to be conducive to the formation of elevated levels of ozone air pollution in the region. Individuals can contribute to reducing ozone pollution by carpooling, walking, cycling, bringing lunch to work, avoiding drive-through lanes, conserving energy, and ensuring their vehicles are well-maintained, as noted by the Texas Commission on Environmental Quality.