[Relationship between air pollution and mortality in Dongcheng and Xicheng Districts, Beijing].

Relationship between air pollution and mortality in 1989 was studied in two residential areas in Beijing (Dongcheng District and Xicheng District). The daily number of death was regressed on the logarithmic air levels of sulphur dioxide (SO2) and/or total suspended particulate (TSP) on the same day with Poisson regression method. A highly significant association was found between logarithmic levels of air SO2 and daily number of death adjusted for the influence of temperature and humidity. The stronger effects of them were seen on the death caused by chronic bronchitis, chronic obstructive pulmonary disease and cor pulmonale.