From the University of Alberta

  • Vikram Choudhary, Max Loebel Roson, Xinyang Guo, Tania Gautam, Tarun Gupta, Ran Zhao (2023) “Aqueous-phase photochemical oxidation of water-soluble brown carbon aerosols arising from solid biomass fuel burning.” RSC Environmental Science: Atmospheres. DOI: 10.1039/D2EA00151A  link
  • Rowshon Afroz, Xinyang Guo, Chu-Wen Cheng, Ryan Duruisseau-Kuntz, Ariel Delorme, Ran Zhao (2023) “Investigation of Indoor Air Quality in University Residences Using Low-Cost Sensors.” RSC Environmental Science: Atmospheres. DOI: 10.1039/D2EA00149G  link
  • Shuang Wu, Erica Kim, Dilini Vethanayagam, and Ran Zhao (2022) “Indoor partitioning and potential thirdhand exposure to carbonyl flavoring agents added in e-cigarette and hookah tobacco”, RSC Environmental Science: Processes & Impacts. DOI: 10.1039/D2EM00365A link
  • Xinyang Guo, Toluwatise Ehindero, Chester Lau, and Ran Zhao (2022) “Impact of glycol-based solvents on indoor air quality—Artificial fog and exposure pathways of formaldehyde and various carbonyls”, Indoor Air. DOI: 10.1111/ina.13100 link
  • Vikram Choudhary, Tarun Gupta, and Ran Zhao (2022) “Evolution of Brown Carbon Aerosols during Atmospheric Long-Range Transport in the South Asian Outflow and Himalayan Cryosphere”, ACS Earth and Space Chemistry. DOI: 10.1021/acsearthspacechem.2c00047 link
  • Shuang Wu, Siti Hayati, Erica Kim, Paulina de la Mata, James Harynuk, and Ran Zhao (2022) “Henry’s Law Constants and Indoor Partitioning of Microbial Volatile Organic Compounds” Environmental Science & Technology DOI:10.1021/acs.est.1c07882 link
  • Tania Gautam, Shuang Wu, Jeff Ma, and Ran Zhao (2022) “Potential Matrix Effects in Iodometry Determination of Peroxides Induced by Olefins”. Journal of Physical Chemistry A DOI:10.1021/acs.jpca.1c10717  link
  • Max Loebel Roson, Ryan Duruissearu-Kuntz, Meng Wang, Keifer Klimchuk, Robin Abel, James Harynuk and Ran Zhao (2021). “Chemical Characterization of Emissions Arising from Solid Fuel Combustion—Contrasting Wood and Cow Dung Burning”. ACS Earth and Space Chemistry DOI: 10.1021/acsearthspacechem.1c00268 Link
  • Jéssica Vejdani Amorim, Xinyang Guo, Tania Gautam, Rongyan Fang, Christian Fotang, Florence J. Williams and Ran Zhao (2021). “Photo-Oxidation of Pinic Acid in the Aqueous Phase: A Mechanistic Investigation Under Acidic and Basic pH Conditions”. RSC Environmental Sciences – Atmospheres DOI: 10.1039/D1EA00031D  Link
  • Chester Lau, Ran Zhao, and Dilini Vethanayagam (2020). “Chemistry Review of Vaping Products and Respiratory Injury” Spectrum DOI: 10.29173/spectrum92 Link
  • Chester Lau, Max Loebel Roson, Keifer Klimchuk, Tania Gautam, Boyang Zhao, and Ran Zhao (2020). “Particulate Matter Emitted from Ultrasonic Humidifiers ‐ Chemical Composition and Implication to Indoor Air”. Indoor Air DOI: 10.1111/ina.12765 Link
  • Jéssica Vejdani Amorim, Shuang Wu, Keifer Klimchuk, Chester Lau, Florence J. Williams, Yuanlong Huang, and Ran Zhao (2020). “pH Dependence of the OH Reactivity of Organic Acids in the Aqueous Phase”. Environmental Science & Technology
    DOI: 10.1021/acs.est.0c03331 Link
  • R. Zhao (2018). “Recent Development and Application of Chemical Ionization Mass Spectrometry in Atmospheric Chemistry”. In Encyclopedia of Analytical Chemistry, R. A. Meyers (Ed.). doi:10.1002/9780470027318.a9655 Link

Selected Publication from Postdoc at Caltech

  • R. Zhao, C.M. Kenseth, Y. Huang, N.F. Dalleska, and J.H.S. Seinfeld (2018). “Rapid aqueous-phase hydrolysis of ester hydroperoxides arising from Criegee intermediates and organic acids”  J. Phys. Chem. A, 122: 5190-5201. Link
  • R. Zhao, C.M. Kenseth, Y. Huang, N.F. Dalleska, and J.H.S. Seinfeld (2018). “Iodometry-assisted liquid chromatography electrospray ionization mass spectrometry for analysis of organic peroxides: an application to atmospheric secondary organic aerosol.” Environ. Sci & Technol., 52: 2108-2117. Link
  • Y. Huang, R. Zhao, S.M. Charan, C.M. Kenseth, X. Zhang, and J.H.S. Seinfeld (2018). “Unified theory of vapor-wall mass transport in Teflon-walled environmental chambers.” Environ. Sci & Technol. , 53: 2134–2142. Link
  • Y. Huang, M.M. Coggon, R. Zhao, H. Lignell, M.U. Bauer, R.C. Flagan, and J.H. Seinfeld (2017). “The Caltech Photooxidation Flow Tube Reactor: design, fluid dynamics and characterization” Atmos. Meas. Tech., 10, 839-867. Link

Selected Publication from PhD Research at the University of Toronto

  • R. Zhao, D. Aljawhary, A.K.Y. Lee, and J.P.D. Abbatt (2017). “Rapid aqueous-phase photooxidation of dimers in α-pinene SOA” Environ. Sci. Technol. Lett., 4(6): 205-210. Link
  • R. Zhao, A.K.Y. Lee, C. Wang, F. Wania, J.P.S. Wong, S. Zhou and J.P.D. Abbatt (2017). “The Role of Water in Organic Aerosol Multiphase Chemistry: Focus on Partitioning and Reactivity” Advances in Atmospheric Chemistry, vol.1, World Scientific, pp. 95-184, ISBN: 978-981-3147-34-8. Link
  • R. Zhao, A.K.Y. Lee, L. Huang, X. Li, F. Yang and J.P.D. Abbatt (2015).  “Photochemical processing of aqueous atmospheric brown carbon” Atmos. Chem. Phys. 15, 2957-2996. Link
  • R. Zhao, E.L. Mungall, A.K.Y. Lee, D. Aljawhary and J.P.D. Abbatt (2014). “Aqueous-phase photooxidation of levoglucosan: A kinetic and mechanistic study using High Resolution Aerosol Chemical Ionization Mass Spectrometry (HR-Aerosol-CIMS).” Atmos. Chem. Phys., 14, 9695-9706. Link
  • R. Zhao, A.K.Y. Lee, J. Liggio, J.J.B. Wentzell, R.W. Leaitch, A.M. Mcdonald, D. Toom-Sauntry, R.L. Modini, A.L. Corrigan, L.M. Russell, L.J. Noone, J.C. Schroder, A.K. Bertram, L.N. Hawkins,  J.P.D. Abbatt, and J. Liggio (2014). “Cloud partitioning of isocyanic acid (HNCO) and evidence of secondary source of HNCO in ambient air” Geophys. Res. Lett. 41, 6962-6969. Link
  • R. Zhao, A.K.Y. Lee, R. Soong, A.J. Simpson and J.P.D. Abbatt (2013). “Formation of aqueousphase α-hydroxyhydroperoxides (α-HHP): potential atmospheric impacts.” Atmos. Chem. Phys., 13, 5857-5872. Link
  • R. Zhao, A.K.Y. Lee and J.P.D. Abbatt (2012). “Investigation of aqueous-phase photooxidation of glyoxal and methylglyoxal by Aerosol Chemical Ionization Mass Spectrometry: observation of hydroxyhydroperoxide formation” J. Phys. Chem. A 116(24): 6253-6263. Link