The Texas Commission on Environmental Quality (TCEQ) has declared Thursday, May 26, as an Ozone Action Day for the Austin metropolitan area. This means that air quality is unhealthy for sensitive groups. You can help by limiting your driving before 8 a.m. and by not using your vehicle between 9 a.m. and 5 p.m. Also, fuel up your vehicles in the morning or at night. Don't idle your vehicle. Carpool or take public transportation.