Principal Investigator: Vicki Grassian

Year Awarded: 2019

Institution: University of California San Diego

The goal of the proposed study is to obtain both quantitative information (rate and extent of reaction) and the detailed molecular processes involved in the chemistry of indoor surfaces so that these data can be used as input in indoor air chemistry models.  The overall objective of this research is to determine how the nature of the surface plays a role in the chemistry of indoor surfaces by measuring the surface chemistry of indoor gases with different relevant indoor surfaces. We will quantify these differences by measuring reaction kinetics, thermodynamics and surface coverage as well as determining the surface chemical species on a range of relevant model indoor surfaces for several indoor gases.  Additionally, we will determine how the surface chemistry changes as a function of relative humidity and light.  The research activities involve the use of in‐situ surface analysis of the chemistry of model relevant indoor surfaces to more complex interfaces in order to bridge these approaches (model and complex systems) so as to accurately delineate and capture the chemistry of indoor surfaces for indoor air quality modeling. Overall, we will obtain new knowledge on the fundamental chemistry that occur on indoor surfaces, new data for input into indoor air quality models, and a paradigm shift in approaches to these studies.  Workforce development is an additional component with the training of students (graduate and undergraduate) and postdoctoral associates.