Industrial SO 2 emissions monitoring using a portable multi-channel gas analyzer with an optimized retrieval algorithm

Industrial SO2 emissions monitoring using a portable multi-channel gas analyzer with an optimized retrieval algorithm Y. W. Sun, C. Liu, P. H. Xie, A. Hartl, K. L. Chan, Y. Tian, W. Wang, M. Qin, J. G. Liu, and W. Q. Liu Key Lab of Environmental Optics & Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China University of Science and Technology of China, Hefei, 230026, China School of Energy and Environment, City University of Hong Kong, Hong Kong, China Meteorological Institute, Ludwig-Maximilians Universität München, Munich, Germany These two authors contributed equally to this work.