The relationship between air pollution levels and morbidity is generally studied through hospital admissions, which represent only a portion of the morbidity that may be linked to pollution. Cire Aquitaine has developed a partnership with SOS Médecins Bordeaux, which handles an average of 400 calls per day across 74 municipalities covering nearly 60% of the population of the Gironde department. A database tracking the association’s activity since 1998 provides information on the diagnoses made daily by doctors. The objective of this study is therefore to estimate the short-term relationships between urban air pollution indicators and home medical visits conducted by the SOS Médecins Bordeaux association. (Introduction)