International audienceThis paper presents the first study of environmental inequality related to health in France on the national scale. Through econometric analysis based on panel data from 2000 to 2004, at the level of France’s departments (administrative areas similar in size to counties in the United Kingdom or the United States.), I investigate the total mortality rate in relation to socioeconomic status and air pollution. The concentration level of NO2,O3 and PM10 are estimated by spatial interpolation from local observations made by a network of monitoring stations. I found a positive and significant relationship between NO2 levels and the mortality rate, at mean levels below the current standard, with a greater relative ris...