On April 24, 2015 vice president ofAerodyne Research Dr. Douglas R. Worsnop visited our laboratoryvisit to the Chinese Academy of Sciences aerosol chemistry and physics key laboratory and participated in the twenty-second phase of the TSI aerosol forum. Before the forum began, Douglas visited Key Laboratory of aerosol chemistry and physics, for everyone to do a "Atmospheric Aerosol, Air Quality and Climate Change excellent report", introduces the aerosol production, distribution characteristics, by aerosol chemistry and microcosmic physical science research results and monitoring results, emphasized the importance of aerosol mass spectrometry in the application of analysis, we had a profound lesson. After the meeting with the teachers and students to exchange views on issues of concern, for the classmates unriddling.