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《Research of Environmental Sciences》 2007-03
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Numerical Simulation Study on the Effect of Major Industrial Sources in Nanjing on Urban Air Quality

WANG Xue-yuan~1,JIANG Wei-mei~1,LIU Hong-nian~1,WANG Yong-wei~1,ZHANG Yu-yan~21.Department of Atmosphere Sciences,Nanjing University,Nanjing 210093,China2.Nanjing Municipal Environment Monitoring Centre Station,Nanjing 210013,China  
Air pollution process during January 6~7,2005 in Nanjing induced by typical weather condition was simulated with the Nanjing University City Air Quality Prediction System(NJU-CAQPS).The meteorological environment and the impact of the major industrial sources on the concentrations of NO_2,SO_2,PM_(10) were simulated,then the impact factors on the heavy pollution were analyzed.The study showed that heavy pollution appeared under a strong temperature inversion;the intensity of the inversion temperature reached the peak at about(1.25)(℃/hm,) with the depth of the inversion layer of 200 m,from 23:00 to 04:00(LST) when the wind speed was small and a strong convergence occurred in the urban area simultaneously.Under the meteorological condition,the concentrations of NO_2,SO_2,PM_(10) reached their peak values.The relatively closed Ningzhen hilly terrain and the Zijin Mountain in the east of Nanjing were also the factors that induced the severe pollution in the urban area.The industrial district in the north of Nanjing was close to the urban area and had the large emission,so it had significant contribution to the pollutant concentrations in the urban area when the northeast wind was prevailing in the winter.
【Fund】: 江苏省环保科技项目(2004008)
【CateGory Index】: X823
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