A Study on Air Quality in Shanghai

Air quality in Shanghai is studied according to Shanghai Air Quality Daily Report in this paper.The results show that air pollution days are reducing to 10 days in a year,the most air pollution day exigts in winter,next spring and the least day is summer in a year,and PM10 or NO2 pollution days are reducing and SO2 pollution days have been increasing each year since 2004.For this reason the prevention and control of Shanghai air pollution occurs in winter and spring.And SO2 discharge is controlled.The controlled way is environmental management.