[Indoor pollution and health]

The indoor pollution, where the patients pass in general close to 90% of their time, is an important factor to take in consideration if one wants to evaluate suitably the effects of the air pollution on the health. Causes of this kind of pollution are partially linked to the external pollution and the outdoor environment and also are function of human activities and introduced products in the habitat (heating, tabagisme, handywork, products of maintenance, coatings, materials of construction, etc.). The effects on health are as various as the pollutants, going from sharp intoxication to irritations or simply desagreements. In this problem of public health we may not underestimated sensitive persons and risky group as well as long terme effects, and chronic exposition effects. The search of solutions needs multiple competences from the physician, who has to play an essential role.