Monitoring and study of city troposhperic aerosol

The vertical distribution of aerosol scattering ratios and extinction coefficients over the observation site at Beijing and Naqu are shown,the correlation of extinction coefficient and wind speed are also discussed,and the conclusions are drawn: the distributions and concentrations of aerosol at Beijing are more sophisticated than that at Naqu,the ambient air quality at Naqu is purer than that at Beijing,and the layer is lower than that at Beijing,etc.