A Method for Dilute Mixing of Reactants in an Outdoor Aerosol Chamber and the Application to an α-pinene/Ozone System Public Deposited

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Last Modified
  • February 28, 2019
Creator
  • Wilson, Rebecca Leigh
    • Affiliation: Gillings School of Global Public Health, Department of Environmental Sciences and Engineering
Abstract
  • Atmospheric aerosols have received increasing attention within the past few years as their role in global climate change is investigated. However, it remains difficult to capture and quantify nucleation events at ambient concentrations in a smog chamber setting. A novel method was developed to mix two dilute reactants at near-ambient concentrations. This method was tested using at the UNC 270m^3 Outdoor Aerosol Chamber in Pittsboro, NC with a dark α-pinene/ozone system at near-ambient concentrations. These results were compared against the UNC Particle Mechanism and scientific literature to test the validity of the method. Further experiments were conducted to examine the role water vapor and background ammonium sulfate seed have in aiding or inhibiting nucleation events.
Date of publication
DOI
Resource type
Rights statement
  • In Copyright
Advisor
  • Fox, Donald L.
  • Kamens, R. M.
  • Sexton, Kenneth
Degree
  • Master of Science in Public Health
Academic concentration
  • Aquatic and Atmospheric Sciences
Degree granting institution
  • University of North Carolina at Chapel Hill
Graduation year
  • 2008
Language
Deposit record
  • e00f1df6-6c31-41ba-867b-150d86a8c8cb
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