EMISSION CHARACTERISTICS OF AIR POLLUTANTS IN CHINA'S CEMENT INDUSTRY

Environmental pollution of cement industry is extremely serious． The source and evaluation method of atmospheric pollutant from cement industry was reviewed and analyzed． Through the time-scale and space-scale comparison in cement industry，it was found that in the past decade，the emission of dust，SO2 and NOx from cement industry increased with the increasing of cement production． Atmospheric pollutant emission of cement industry in Eastern China was the largest in the seven regions，in which the emission of dust，SO2 and NOx contributed 31. 8%，31. 0% and 31. 8% to the total emission of the whole industry，respectively．