Abstract
This policy brief presents the research results of an assessment of social inequalities in exposure to several air pollutants using new indicators. Exposure differences between municipalities are measured through the number of exposure days at risk and the composition of pollution days. The results show that urban communities accumulate many exposure days, a significant part of which are multi-exposure days (cocktail days). Rural communities have fewer exposure days and mixtures of pollutants are less frequent. Also, among dense urban municipalities, the most disadvantaged municipalities accumulate more days of exposure to pollution, whereas among rural municipalities the result is the opposite, all other things beingequal. However, this difference is much smaller for rural municipalities. Finally, the last result presented in this policy brief is that the pollution days of the most affluent rural communes are composed of a larger share of cocktail days. In contrast, poor and affluent urban municipalities have an equivalent average share of cocktail days, all other things being equal.