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This article introduces the main results of a contextual contingent valuation survey ( i.e. specific to the underlying risk) dealing with a change in air pollution exposition. Individual willingness-to-pay for both health (morbidity and mortality) and non-health effects are elicited. The use of an original hypothetical scenario that involves 1 273 inhabitants of the Bouches-du-Rhône and a convenient econometric model (Box-Cox model with censoring) lead to an overall predicted monthly value of 68,6 euros per household for an half decrease of the number of polluted days. A model of expected life-time resource allocation allows us to evaluate, for the first time, a value of a prevented fatality specific to the air pollution risk: 0,8 million Euros.Classification JEL: C1, I1, Q25, D12