Tang Xiaoyan is a Fellow of the Chinese Academy of Engineering and Professor of the Department of Environmental Science, Peking University.

Mr. Tang is also the co-Chair of the Environmental Impact Assessment Group on Ozone Depletion of United Nations Environment Programme, and scientific advisor of the Beijing Municipal People's Government. Tang Xiaoyan has since 1972 undertaken systematic research and teaching in the field of atmospheric environmental chemistry in China. He has, in areas of important research such as the ozone, photochemical smoke, acid rain, aerosol chemistry and other aspects of comprehensive research, made important contributions, and is a leader in China's atmospheric environmental chemistry field.