Prof. Christopher Chao

Prof. Christopher Chao

The Hong Kong University of Science and Technology, China

Associate Dean of Engineering




1994 Ph.D., Mechanical Engineering, University of California at Berkeley, USA

1992 M.Sc., Mechanical Engineering, University of California at Berkeley, USA

1988 B.Sc., Mechanical Engineering, The University of Hong Kong, China


  1. Y. Yang, G.N. Sze-To and C.Y.H. Chao, Estimation of the Aerodynamic Sizes of Single Bacterium-laden Expiratory Aerosols using Stochastic Modeling with Experimental Validation, Aerosol Science and Technology, 46, pp. 1-12, 2012.
  2. M.P. Wan, C.L. Wu, G.N. Sze-To, T.C. Chan and C.Y.H. Chao, Ultrafine Particles and PM2.5 Generated from Cooking in Homes,Atmospheric Environment, 45, pp. 6141-6148, 2011.
  3. M.P. Wan, K.S. Hui, C.Y.H. Chao and C.W. Kwong, Catalytic Combustion of Methane with Ozone using Pd-exchanged Zeolite X: Experimental Investigation and Kinetics Model, Combustion Science and Technology, 182, pp. 1429-1445, 2010.
  4. C.W. Kwong and C.Y.H. Chao, Fly Ash Products from Biomass Co-Combustion for VOC Control, Bioresource Technology, 101, pp. 1075-1081, 2010.
  5. C.Y.H. Chao, M.P. Wan, L. Morawska, G.R. Johnson, Z.D. Ristovski, M. Hargreaves, K. Mengersen, S. Corbett, Y. Li, X. Xie and D. Katoshevski, Characterization of Expiratory Air Jets and Droplet Size Distributions immediately at the Mouth Opening, Journal of Aerosol Science, 40, pp. 122-133, 2009.
  6. M.P. Wan, G.N. Sze To, C.Y.H. Chao, L. Fang and A. Melikov, Modeling the Fate of Expiratory Aerosols and the Associated Infection Risk in an Aircraft Cabin Environment, Aerosol Science and Technology, 43, pp. 322-343, 2009.
  7. C.W. Kwong, C.Y.H. Chao, K.S. Hui and M.P. Wan, Catalytic Oxidation of Toluene using Zeolite and MCM-41 Materials,Environmental Science and Technology, 42, pp. 8504-8509, 2008.
  8. K.S. Hui and C.Y.H. Chao, Methane Emissions Abatement by Multi-ion-exchanged Zeolite A Prepared from Both Commercial-grade Zeolite and Coal Fly Ash, Environmental Science and Technology, 42, pp. 7392-7397, 2008.
  9. G.N. Sze To, M.P. Wan, C.Y.H. Chao, F. Wei, S.C.T. Yu and J.K.C. Kwan, A Methodology for Estimating Airborne Virus Exposures in Indoor Environments Using the Spatial Distribution of Expiratory Aerosols and Virus Viability Characteristics, Indoor Air, 18, pp. 425-438, 2008.
  10. C.Y.H. Chao, M.P. Wan and G.N. Sze To, Transport and Removal of Expiratory Droplets in Hospital Ward Environment, Aerosol Science and Technology, 42, pp. 377-394, 2008.
  11. K.S. Hui, C.Y.H. Chao, C.W. Kwong and M.P. Wan, Use of Multi-transition Metal-ion-exchanged Zeolite 13X Catalysts in Methane Emissions Abatement, Combustion and Flame, 153, pp. 119-129, 2008.
  12. C.W. Kwong, C.Y.H. Chao, K.S. Hui and M.P. Wan, Removal of VOCs from Indoor Environment by Ozonation over Different Porous Materials, Atmospheric Environment, 42, pp. 2300-2311, 2008.
  13. P.C.W. Kwong, C.Y.H. Chao, J.H. Wang, C.W. Cheung and G. Kendall, Co-combustion Performance of Coal with Rice Husks and Bamboo, Atmospheric Environment, 41, pp. 7462-7472, 2007.
  14. C.Y.H. Chao, P.C.W. Kwong, J.H. Wang, C.W. Cheung and G. Kendall, Co-Firing Coal with Rice Husk and Bamboo and the Impact on Particulate Matters and Associated Polycyclic Aromatic Hydrocarbon Emissions, Bioresource Technology, 99, pp. 83-93, 2007.
  15. C.Y.H. Chao, C.W. Kwong and K.S. Hui, Potential Use of a Combined Ozone and Zeolite System for Gaseous Toluene Elimination,Journal of Hazardous Materials, 143, pp. 118-127, 2007.
  16. K.S. Hui and C.Y.H. Chao, Synthesis of MCM-41 from Coal Fly Ash by a Green Approach: Influence of Synthesis pH, Journal of Hazardous Materials, 137, pp. 1135-1148, 2006.
  17. K.S. Hui, C.Y.H. Chao and S.C. Kot, Removal of Mixed Heavy Metal Ions in Waste Water by Zeolite 4A and Residual Products from Recycled Coal Fly Ash, Journal of Hazardous Materials, 127 (1-3), pp. 89-101, 2005.
  18. C.Y.H. Chao, M.P. Wan and E. C.K. Cheng, Penetration Coefficient and Deposition Rate as a Function of Particle Size in Non-Smoking Naturally Ventilated Residences, Atmospheric Environment, 37(30), pp. 4233-4241, 2003.
  19. C.Y.H. Chao and G.Y. Chan, Quantification of Indoor VOCs in Twenty Mechanically Ventilated Buildings in Hong Kong, Atmospheric Environment, 35(34), pp. 5895-5913, 2001.
  20. C.Y.H. Chao and K.K. Wong, Residential Indoor PM10 and PM2.5 in Hong Kong and the Elemental Composition, Atmospheric Environment, 36(2), pp. 265-277, 2001.
  21. C.Y.H. Chao and T. Tung, An Empirical Model for Outdoor Contaminant Transmission into Residential Buildings and Experimental Verification, Atmospheric Environment, 35, pp. 1585-1596, 2001.
  22. T.C.W. Tung, C.Y.H. Chao and J. Burnett, A Methodology to Investigate the Particulate Penetration Coefficient Through Building Shell, Atmospheric Environment, 33, pp. 881-893, 1999.