1. State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China, Center for Public Safety Research, Tsinghua University, Beijing 100084, People's Republic of China, Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wanshou Shan, Beijing 100091, People's Republic of China, and School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str, Athens 157 73, Greece