Given the persistence of the episode of air pollution by ozone, the prefect triggered the level 2 alert procedure for the day on Wednesday. In addition to the reinforcement of controls applied within the framework of the information and recommendation procedure incorporated since July 17 and the provisions applied during the transition to the level 1 alert procedure, activated in Vaucluse since Monday, in particular the reduction of the speed of 20 km/h, it decided to implement new emergency measures such as the reduction of activity on dust-generating sites and to propose compensatory measures (watering, etc.).
- Modification of the format of motorsport events (land, sea, air) using training and test times, and the ground work report. However, after consulting the members of the Exp’Air committee, it was decided not to implement the differentiated traffic system in the Avignon living area for this single day. Indeed, the hopes of Météo-France announce the return of a Mistral in the night from Wednesday to Thursday, conducive to the dispersion of pollutants present in the atmosphere and a slight improvement in air quality for the day of Thursday.