[Atmospheric pollution and acute respiratory diseases. Denain and Quievrechain epidemiological study (author's transl)].

The subject of this study is to evaluate a possible relation between air pollution levels and acute diseases with a special interest in acute respiratory diseases. The study was performed in two towns located in the "département du Nord, France", (Denain and Quievrechain) with mid levels of air pollution. A slight but statistically significant relation was found though the study was performed during an unusually mild winter season. Meteorological conditions have been taken in account in the evaluation of the relation.