RESUMEN
Objective To explore the effects of air pollution on daily outpatient vivits of hospital. Methods Correlation analysis was carried out based on data of daily outpatient visits of Taiyuan Central Hospital(TCH) and monitoring data on the concentration of TSP and SO2 in air and temeprature and humidity area of Xinghualing district where TCH was located by the time series analysis. Results The concentiations of TSP and SO2 in air exceeded the corresponding standards recommended by WHO. SO2 was the statistically significant forecasting factor for the daily outpatient visits of the department of respiratory disease, emergency and piediatrics. TSP was the statistically singnificant forecasting factor for the daily outpatient visits of department of cardiovascular disease and other departments. Conclusion Severe air pollution by TSP and SO2 effected the dialy outpatient visits in a certain degree.