Dr. Zhi Ning is currently an Assistant Professor in the School of Energy and Environment in City University of Hong Kong. Before he joined CityU, he was a Research Assistant Professor and graduate course lecturer in the Department of Civil and Environmental Engineering in the University of Southern California. He has also been the aerosol research manager of the Southern California Particle Center funded by U.S. EPA after he received his Ph.D degree in the Environmental Engineering from University of Southern California in 2009.

Dr. Ning has published more than 25 peer-reviewed publications in the field of environmental engineering with a focus on aerosol related research and innovation of instrumentation for air pollution measurement and control.

Research Interests:

• Urban aerosol characterization

  Physicochemical and toxicological properties of airborne particulate matter in urban area due to anthropogenic activities
  
  

• Mobile source emission characterization

  Near road, on-board, and chassis dynamometer measurement of mobile source emissions
  
  

• Local and regional air pollution source identification

  Principle component analysis, chemical mass balance
  
  

• Air pollution transportation and transformation 

• Instrumentation of air pollution control and measurement

  Aerosol to hydrosol sampler; high volume cascade impactor; full body animal exposure systems
  
  

• Health effects of air pollution

  Development of chemical and bioassay for particle oxidative potential measurement; In-vitro and in-vivo exposures.

Peer Reviewed Publications

• Kam, W., Ning, Z, Schauer, J. J., Shafer, M., Sioutas, C. Chemical characterization of coarse and fine particulate matter (PM) in underground and ground-level rail systems of Los Angeles Metro, Submitted to Environmental Science & Technology, March, 2011.
• Daher, N., Ning, Z., Cho, A.K., Shafer M. M., Schauer, J. J., Sioutas, C. Comparison of the chemical and toxicological characteristics of particulate matter (PM) collected by different methods: filters, impactors and BioSamplers, submitted for publication to Aerosol Science and Technology, January, 2011
  
• Morgan, T.E, Davis, D.A, Iwata, N., Tanner, J.A, Snyder, D., Ning, Z., Kam, W., Hsu, Y.T, Winkler, J.W, Chen, J.C, Petasis, N.A, Baudry, M., Sioutas, C., and Finch, C.E. “Neurotoxicity of nanoscale urban air pollutants is mediated by direct actions on neurons and glia”. Accepted for publication to Environmental Health Perspectives , August 2010
  
• Ning, Z., Hudda, N., Daher, N., Kam W., Herner, J, Kozawa, K., Mara, S., Sioutas C. Impact of roadside noise barriers on particle size distributions and pollutants concentrations near freeways, Atmospheric Environment. 44:26, 3118-3127, 2010
  
• Pakbin, P., Ning, Z., Shafer, M.M., Schauer J.J., Sioutas C. Seasonal and spatial characteristics of trace elements and metals in coarse particulate matter in the Los Angeles Area, Accepted for publication in Atmospheric Environment, March 2011.
  
• Pakbin, P, Ning, Z, Eiguren-Fernandez A, and Sioutas C. “Modification of the Versatile Aerosol Concentration Enrichment System (VACES) for Conducting Inhalation Exposures to Semi-volatile Particle and Vapor Phase Pollutants”. Submitted for publication to Aerosol Science and Technology, October 2010
  
• Li, N., Harkema, J.R., Lewandowski, R.P., Wang, M., Bramble, L.A, .T, Gookin, G., Ning, Z., Kleinman, M.T., Sioutas, C., and Nel, A.E. “Ambient Ultrafine Particles Provide a Strong Adjuvant Effect in the Secondary Immune Response: Implication for Traffic-related Asthma Flares”. American Journal of Physiology: Lung Cellular and Molecular Physiology, 299: L374-L383, 2010
  
• Ning, Z., Sioutas, C. Atmospheric processes influencing aerosols generated by combustion and their impact on public exposure: A Review. Aerosol and Air Quality Research. 10: 43–58, 2010.
  
• Li R., Ning, Z, Cui, J., Sioutas, C., Hsiai T., Diesel exhaust particles modulate vascular endothelial cell permeability: Implication of ZO-1 Expression, Toxicology Letters 197: 163–168, 2010.
  
• Li R., Ning, Z, Majumdar R., Cui, J., Takabe, W., Jen, N., Sioutas, C. and Hsiai T., Ultrafine particles from diesel vehicle emissions at different driving cycles induce differential vascular pro-inflammatory responses: Implication of chemical components and NF-κB signaling, Particle and Fibre Toxicology., 7:6, doi:10.1186/1743-8977-7-6, 2010
  
• Verma, V., Ning, Z., Cho A. K., Schauer J. J., Shafer M. M. and Sioutas C. Redox activity of urban quasi-ultrafine particles from primary and secondary sources. Atmospheric Environment, Volume 43, Issue 40, December 2009, Pages 6360-6368
  
• Han, B., Ning, Z., Hudda, N., Kim, Y. J., Sioutas, C. Efficient Collection of Atmospheric Aerosols with a Particle Concentrator—Electrostatic Precipitator Sampler, Aerosol Science and Technology, 43:757-766, 2009
  
• Ning, Z., Sillanpaa, M., Pakbin, P., Sioutas, C., Field evaluation of a new particle concentrator- electrostatic precipitator system for measuring chemical and toxicological properties of particulate matter, Particle and Fibre Toxicology, 2008, 5:15, November 2008
  
• Pakbin, P., Ning, Z., Schauer J. J., Sioutas, C. Characterization of Particle Bound Organic Carbon from Diesel Vehicles Equipped with Advanced Emission Control Technologies, Environmental Science and Technology, 2009, 43 (13), pp 4679–4686
  
• Li R., Ning, Z., Cui J., Khalsa B., Ai L., Takabe W., Beebe T., Majumdar R., Sioutas C., and Hsiai T. “Ultra Fine Particles From Diesel Engines Induce Vascular Oxidative Stress via JNK Activation”. Free Radical Biology and Medicine, Volume 46, Issue 6, 15 March 2009, Pages 775-782, doi:10.1016/j.freeradbiomed.2008.11.025
  
• Han, B., Hudda, N., Ning, Z., Kim, H. J., Kim, Y. J. & Sioutas, C. (2008). A novel bipolar charger for submicron aerosol particles using carbon fiber ionizers, Journal of Aerosol Science, 40(4), April 2009, Pages 285-294.
  
• Han, B., Hudda N., Ning, Z. and Sioutas C. Enhanced Unipolar Charging of Concentration-Enriched Particles Using Water-based Condensational Growth. Journal of Aerosol Science, 39 (9), September 2008, Pages 770-78
  
• Ning, Z., Polidori, A., Schauer, J.J. and Sioutas C. Emission factors of PM species based on freeway measurements and comparison with tunnel and dynamometer studies. Atmospheric Environment, Volume 42, Issue 13, April 2008, Pages 3099-3114
  
• Ning, Z., Geller M.D. and Sioutas C, Fine, Ultrafine and Nanoparticle Trace Organic Composition Near a Major Freeway With Heavy Duty Diesel Fraction, Society of Automotive Engineers, 2007-24-0108 , July 2007
  
• Ning, Z., Geller M.D., Moore K.F, Sheesley R.J., Schauer J.J, and Sioutas C. Daily Variation of Chemical Characteristics of Urban Ultrafine Aerosols and Inference of their Sources. Environmental Science and Technology, 41 (17), 6000-6006, 2007
  
• Moore K.F., Ning, Z., Ntziachristos L., Schauer J.J. and Sioutas C. Daily variation in the properties of urban ultrafine aerosol—Part I: Physical characterization and volatility. Atmospheric Environment, Volume 41, Issue 38, December 2007, Pages 8633-8646
  
• Ntziachristos L, Ning, Z., Geller M.D., Sheesley R., Schauer J.J. and Sioutas C. Fine, Ultrafine and Nanoparticles Trace Element Compositions near a Freeway with Heavy Duty Diesel Traffic. Atmospheric Environment, 41 (27): 5684 – 5696, 2007
  
• Ntziachristos L., Ning, Z., Geller M.D and Sioutas C. Particle Concentration and Characteristics near a Major Freeway with Heavy-Duty Diesel Traffic. Environmental Science and Technology 41 (7), 2223 -2230, 2007.
  
• Ning, Z., Moore K., Polidori A, Sioutas C. Field Validation of the new miniature Versatile Aerosol Concentration Enrichment System (mVACES). Aerosol Science and Technology 40 (12), 1098-1110, 2006
  
• Ning, Z. and Chan, T.L. On-road Remote Sensing of Liquefied Petroleum Gas (LPG) Vehicle Emissions Measurement and Emission Factors Estimation in Hong Kong. Atmospheric Environment, Volume 41, Issue 39, Pages 9099-9110, 2007
  
• Chan, T.L., Ning, Z., Wang, J.S., Leung C.W., Cheung C.S., Hung W.T., Gaseous and Particle Emission Factors from the Selected On-Road Petrol/Gasoline, Diesel, and Liquefied Petroleum Gas Vehicles, Energy and Fuels 21: 2710-2718, 2007
  
• Wang, J.S, Chan, T.L., Ning, Z., Cheung C.S., Leung C.W. Roadside Measurement and Prediction of CO and PM2.5 Dispersion from On-road Vehicles in Hong Kong. Transportation Research Part D- Transport and Environment 11 (4): 242-249, 2006
  
• Chan T.L. and Ning Z. (2005) On-road Remote Sensing of Diesel Vehicle Emissions Measurement and Emission Factors Estimation in Hong Kong. Atmospheric Environment 39 (36): 6843-6856, 2005
  
• Chan T.L., Ning Z., Leung C.W., Cheung C.S., Hung W.T. and Dong G. On-road Remote Sensing of Petrol Vehicle Emissions Measurement and Emission Factors Estimation in Hong Kong. Atmospheric Environment 38(14), 2055-2066, 2004

Conference Presentations

American Association for Aerosol Research (AAAR) 29^th Annual Conference, Portland, OR, 2010

• Zhi Ning, Nancy Daher, James J. Schauer, Arthur Cho, Ning Li, Constantinos Sioutas, Comparison of particle sampling and collection methods for measurement of their physicochemical and toxicological properties, 12D.3
• Payam Pakbin, Zhi Ning, James J. Schauer, Constantinos Sioutas, Chemical Speciation of Trace Metals for Coarse Particulate Matter in the Los Angeles Area. 7E.6

American Association for Aerosol Research (AAAR) 28^th Annual Conference, Minneapolis, MN 2009

• Li R., Zhi Ning., Cui J., Khalsa B., Ai L., Takabe W., Beebe T., Majumdar R., Sioutas C., and Hsiai T., Ultra Fine Particles from Diesel Engines Induce Vascular Oxidative Stress via JNK Activation, 7I.26
• Payam Pakbin, Zhi Ning, Constantinos Sioutas, Characterization of Particle Bound Organic Carbon from Diesel Vehicles Equipped with Advanced Emission Control Technologies, 10F.02

American Association for Aerosol Research (AAAR) 27^th Annual Conference, Orlando, Florida 2008

• Zhi Ning, Andrea Polidori, James J. Schauer, Constantinos Sioutas, Light- and Heavy-Duty Vehicle Emission Factors of PM Species Based on Freeway Measurements and Comparison with Tunnel and Dynamometer Studies, 9A-06
• Bangwoo Han, Zhi Ning, Neelakshi Hudda, Constantinos Sioutas, Hak-Joon Kim, Yong-Jin Kim, Particle Neutralization using a Carbon Fiber Charger for Fine and Ultra-fine Aerosol Particles. 9G.02

Air and Waste Management Association (A&WMA) 101^st Annual Conference & Exhibition, Portland, Oregon, 2008

• Zhi Ning, Andrea Polidori, Constantinos Sioutas, Light- and Heavy-Duty Vehicle Emission Factors of PM Species Based on Freeway Measurements and Comparison with Tunnel and Dynamometer Studies, AM-1b, Paper #603,
• Shaohua Hu, Subhasis Biswas, Vishal Verma, Zhi Ning, Constantinos Sioutas, Andrea Polidori, Physical and Chemical Properties Particles Emitted from Heavy Duty Diesel Vehicles Operating with Advanced Emission Control Technologies, ET-1g, Paper #663

American Association for Aerosol Research 26^th Annual Conference, Grand Sierra Resort, Reno, Nevada. 2007.

• Zhi Ning, Michael D. Geller, Katharine F. Moore, Constantinos Sioutas, Rebecca Sheesley, James J. Schauer, Daily Variation in Chemical Characteristics of Urban Ultrafine Aerosols and Inference of Their Sources, Platform 3D.6
• Zhi Ning, Harish C. Phuleria, Michael D Geller, Constantinos Sioutas, Reconciling Emission Factors of PM Species Emitted by Vehicles in Freeways and Roadway Tunnel Environments. Platform 12E.2

Seventh Asia-Pacific International Symposium on Combustion & Energy Utilization (7^th APISCEU), Hong Kong, 2004.

• Zhi Ning, T. L. Chan, J. S. Wang, C. W. Leung, C. S. Cheung and W. T. Hung, Characterization of On-Road Vehicle Emissions in Hong Kong, Paper No.: B5-316

MoVE2004 Workshop, Hong Kong, December 14-15, 2004.

• Zhi Ning., T. L. Chan, J. S. Wang, C. S. Cheung, C. W. Leung and W. T. Hung, Relationship between ultrafine particle, fine particle, coarse particle and hydrocarbon (HC) emission factors from the selected local representative in-use vehicles in Hong Kong.

Awards/Professional Service

• Chair of 29^th AAAR conference session HEALTH RELATED AEROSOLS VI, Portland, OR, 2010
• Reviewer of research proposals for the University Research Board of the American University of Beirut, Lebanon
  
• Journal reviewer: Atmospheric Environment, Environmental Science and Pollution Research, Aerosol and Air Quality Research
  
• Member of American Association of Aerosol Research (AAAR), 2005-present
  
• Member of Air and Waste Management Association (AWMA), 2005-present
  
• Outstanding Research Assistant Award by Department of Civil and Environmental Engineering, USC 2008
  
• Excellent student scholarships awarded by University of Science of Technology of China, China.

Last Update: October 2011