ABOUT
Atmospheric Chemistry Researcher
I am a fourth year Ph.D. student in Phil Stevens Laboratory at Indiana University. I study the total OH radical reactivity in both indoor and outdoor environments using laser induced fluorescence-fluorescence by gas expansion (LIF-FAGE) and Gas Chromatography Flame Ionization Detection (GC-FID). I also measure the rate constants of OH radicals with various volatile organic compounds at low pressures using discharge flow laser induced fluorescence (DF-LIF). Apart from research, my hobbies are books, cooking, and hiking.
MY RESEARCH
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MEASUREMENTS OF HYDROXYL RADICAL REACTIVITY BY USING IU LIF-FAGE SPECTROSCOPY
The hydroxyl radical (OH) is the primary atmospheric oxidant that controls the chemical lifetimes of many trace gases and is involved in the formation of tropospheric ozone (O3) and secondary organic aerosols (SOA). Understanding the sources and sinks of the OH radical in the troposphere can help address air quality concerns. In this work, we characterize the total OH reactivity using the total OH loss rate method (TOHLM) developed at Indiana University.
LOW-PRESSURE DEPENDENT RATE CONSTANTS OF VOCS WITH OH RADICAL
This work focuses on understanding the kinetic rates of OH radical with several volatile organic compounds (VOCs). Oxidation by OH is the dominant loss process of VOCs in the atmosphere. The rate constants can be used to predict the lifetimes of chemical species, as well as their fate in the environment. The rate constant data can help improve the accuracy of parameters used in various air quality models. In this work, we use discharge flow-laser induced fluorescence (DF-LIF) to measure rate constants of various VOCs (such as MEK) with OH at different pressure and temperature.