An updated air quality alert was reported by the Texas Commission on Environmental Quality on Tuesday at 1:43 p.m. in effect until Wednesday at 4:45 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 has announced an Ozone Action Day for the Dallas-Fort Worth area on Wednesday, September 17, 2025. Atmospheric conditions are anticipated to contribute to elevated levels of ozone air pollution in the region on that day. Residents can help reduce ozone pollution by carpooling, walking, cycling, bringing lunch to work, avoiding drive-through lanes, conserving energy, and ensuring their vehicles are properly maintained.