Postdoctoral Research Fellows

photo of Penglin Ye

Penglin Ye

  • Postdoctoral Research Fellow
  • Department of Chemistry
  • Advisor: Neil Donahue

I am studying secondary organic aerosol (SOA) formation and the behavior of volatile organic compounds (VOCs) and organic aerosols (OAs) in a smog chamber reactor. I am using the High Resolution Aerosol Mass Spectrometer (HR-AMS) and Proton Transfer Reaction Mass Spectrometer (PTR-MS) as major tools. I also joined the CLOUD consortium to study the contribution of oxidized organic compounds to new-particle formation—the very first step of cloud formation.

photo of Naomi Zimmerman

Naomi Zimmerman

  • Postdoctoral Research Fellow
  • Department of Mechanical Engineering
  • Advisor: Allen Robinson

My research is focused on using mobile monitoring methods to quantify methane and volatile organic emissions from natural gas production in North America. Additionally, I am interested in characterizing air pollutants in urban areas using a combination of sensors and mobile monitoring techniques. During my Ph.D. I assessed the air quality impacts of gasoline direct injection (GDI) engine exhaust using a combination of laboratory and real-world measurements.

photo of Mark Omara

Mark Omara

  • Postdoctoral Research Fellow
  • Department of Mechanical Engineering
  • Advisor: Albert Presto

My current research effort is focused on quantifying the magnitude of the emissions and leak rates of methane from shale gas activities in the Marcellus Shale. Using a mobile laboratory, real time emissions of methane are directly measured from a variety of facilities incorporating different stages of natural gas production. Additionally, we are also examining emissions of ozone-forming volatile organic carbons and air toxics from shale gas operations in the Marcellus Shale. Taken together, these research effort will help fill critical data gaps regarding atmospheric emissions associated with shale gas development in the Marcellus Shale and improve our understanding of the climate and air quality impacts of shale gas development.

photo of Yunliang Zhao

Yunliang Zhao

  • Postdoctoral Researcher
  • Department of Mechanical Engineering
  • Advisor: Allen Robinson

My current research is to improve our understanding of intermediate-volatiltiy organic compounds, including chemical composition, volatility distribution, ambient concentration, primary sources and chemical transformation, through instrument development, field measurements and smog chamber experiments.