J
JoAnn S. Lighty
Researcher at University of Utah
Publications - 120
Citations - 3893
JoAnn S. Lighty is an academic researcher from University of Utah. The author has contributed to research in topics: Combustion & Chemical looping combustion. The author has an hindex of 30, co-authored 119 publications receiving 3501 citations. Previous affiliations of JoAnn S. Lighty include Boise State University & Utah State University.
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Journal ArticleDOI
Combustion aerosols: factors governing their size and composition and implications to human health.
TL;DR: Particle surface area, number of ultrafine particles, bioavailable transition metals, polycyclic aromatic hydrocarbons (PAH), and other particle-bound organic compounds are suspected to be more important than particle mass in determining the effects of air pollution.
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Phase and size distribution of polycyclic aromatic hydrocarbons in diesel and gasoline vehicle emissions.
Barbara Zielinska,John C. Sagebiel,W. P. Arnott,C. F. Rogers,Kerry E. Kelly,D. A. Wagner,JoAnn S. Lighty,and A. F. Sarofim,Glenn R. Palmer +8 more
TL;DR: There is more mass and higher EC contribution when the vehicle is run under higher load in comparison with the low load, however, older vehicles generally show moremass and EC emissions than newer vehicles, and there is a shift toward smaller particle sizes for theLow load, which is most pronounced for newer vehicles.
Particle characteristics responsible for effects on human lung epithelial cells.
Ann E. Aust,James C. Ball,Autumn A. Hu,JoAnn S. Lighty,Kevin R. Smith,Ann Marie Straccia,John M. Veranth,Willie C. Young +7 more
TL;DR: This work focused on the relation between physical characteristics of particles and their ability to generate hydroxyl radicals in cell-free systems and to cause oxidative stress, which results in the synthesis of mediators of pulmonary inflammation in cultured human lung epithelial cells.
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Interleukin-8 levels in human lung epithelial cells are increased in response to coal fly ash and vary with the bioavailability of iron, as a function of particle size and source of coal.
TL;DR: It is demonstrated that iron present in CFA may be responsible for production and release of inflammatory mediators by the lung epithelium through generation of radical species and suggest that iron may contribute to the exacerbation of respiratory problems by particulate air pollution.
Journal ArticleDOI
Soot Oxidation Kinetics Under Pressurized Conditions
Isabel C. Jaramillo,Chethan K. Gaddam,Randy L. Vander Wal,Chung Hsuan Huang,J. Levinthal,JoAnn S. Lighty +5 more
TL;DR: In this article, a flat-flame, premixed burner was used to collect soot samples from different liquid fuels and two standards (a commercial black carbon sample and a reference diesel soot) were studied.