B., Davidovits P., Chandler D., Surratt J. L., A., Heffernan B., Gold A., Zhang Z., Chen, Y., Canagaratna M., Jayne J. Zhang Y., Nichman L., Spencer P., Jung J.J.: Laboratory Study of the Heterogeneous Ice Nucleation on Black Carbon Containing Aerosol, Atmos. D.: Joint Impacts of Acidity and Viscosity on the Formation of Secondary Organic Aerosol from Isoprene Epoxydiols (IEPOX) in Phase Separated Particles, ACS Earth & Space Chem, 2019, 3(12), 2646-2658. J., The effects of morphology, mobility size, and secondary organic aerosol (SOA) material coating on the ice nucleation activity of black carbon in the cirrus regime. J., A biogenic secondary organic aerosol source of cirrus ice nucleating particles. Candidates will have the opportunity to work on projects (1) using environmental chambers, state-of-the-art aerosol and gas phase mass spectrometers to examine the chemical transformation of secondary organic aerosols (2) applying advanced physical and chemical characterization techniques to examine the mixing state and phase state of ambient aerosols (3) bridging liquid and ice cloud formation processes with aerosol physicochemical properties. Professor Zhang is seeking to recruit graduate students and one postdoc to connect fundamentals of atmospheric chemistry with air pollution and climate predictions. Graduate Students and Postdoc Opportunities Applying kinetic and reaction mechanisms derived from laboratory studies to regional and global scale models.The role of physicochemical properties of aerosols in air quality and climate change.Climate effects of aerosols and their physicochemical properties: examining cloud condensation nuclei and ice nucleation properties of complex aerosols.Chemical evolution of organic aerosols using environmental chamber and chemical characterization techniques.Our group also examines the climate and health effects of aerosols in both outdoor and indoor environments. Zhang’s research aims to understand the physicochemical evolution and interactions of gas and particle phase compounds that form complex aerosol particles. Atmospheric aerosols, especially with sizes smaller than 2.5 μm (PM2.5), have significant health risks and climate effects due to their abilities to penetrate deeply into lungs and form clouds, while their formation mechanisms are not fully understood.ĭr. With increasing interactions between human beings and the environment, air pollution and climate change are two major challenges many countries face.
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