Source: https://www.ecologique-solidaire.gouv.fr/sites/default/files/Revue%20Pollution%20Atmosph%C3%A9rique%20Les%20%C3%A9pisodes%20de%20forte%20pollution%20des%20ann%C3%A9es%202013%20et%202014%20-%20retours%20d%27exp%C3%A9rience.pdf