The fine particle pollution alert procedure was triggered for Wednesday in Bouches-du-Rhône and Var. Fine particles, emitted by motor vehicles, industry and fires, are one of the air pollutants most harmful to health.
This pollution caused the deaths of 253,000 people in the European Union (EU) in 2021, according to a 2023 report from the European Environment Agency (EEA) It is recommended to avoid intense physical activities during the pollution episode and to favor public transport.