the environmental protection facilities operating normally in our company, flue gas online monitoring system was installed in place and circulating. According to the online monitoring data from 8.13 to 9.26 ,  SO2:Maximum value133.27 mg/m3 , Minimum value2.51mg/m3 , average value 7.10mg/m3  ,smoke dust : Maximum value 17.90 mg/m3 Minimum value 1.40mg/m3 average value.3.02mg/m3 ,these data are far away below national emission standard SO2880 mg/m3 smoke dust 50 mg/m3