[ Objective ] The research aimed to study the influences of period heating in winter on the four atmospheric pollutants contents of dif- ferent areas in Shenyang City. [ Method] The content changes of four atmospheric pollutants （PM10, PM2.5, SO2 and NO2 ） across the months of 2013 was analyzed based on data of 11 monitoring points under 6 air environmental function areas in Shenyang. Meanwhile, the Principal Compo- nent Analysis （PCA） was used to detect the relationships among period heating, concentrations of four atmospheric pollutants and air environmen- tal function areas. [ Result ] The results showed that period heating influenced remarkably on contents of PM 10, PM2.5 and SO2, which presented ap- parently on month changes. Concentration of NO2 was influenced by both period heating and precipitation,which showed different month changes compared to other three atmospheric pollutants. Industrial zone had most atmospheric pollutants during heating period while commercial traffic res- idents mixed zone had higher atmospheric pollutants both in the heating period and in non - heating period. Rural area and scenic spot had lowest concentration of four atmospheric pollutants during winter time. For concentration of NO2 ,rural area and commercial traffic residents mixed zone were higher than other air environmental function areas through 2013. [ Conclusion] This research could provide scientific supports for the further adjustment and control of air pollution in Shenyang City.
Journal of Anhui Agricultural Sciences