Date of Award

1-1-2009

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

College/School/Department

Department of Atmospheric and Environmental Sciences

Content Description

1 online resource (xv, 190 pages) : PDF file, illustrations (some color)

Dissertation/Thesis Chair

Fangqun Yu

Committee Members

Kenneth L Demerjian, Chris J Walcek, Robert G Keesee

Keywords

atmospheric aerosols, binary homogenous nucleation, nanoparticles, nucleation mechanism, ultra fine particles, vehicle exhaust, Nanoparticles, Nucleation, Automobiles, Tropospheric aerosols

Subject Categories

Environmental Sciences

Abstract

Airborne particles which are ubiquitous in the atmosphere have profound influences on air quality, public health and global climate. On a small urban scale, vehicle-emitted nanoparticles, being one of the major sources of airborne particles, have been shown to have adverse impacts on public health. On a much larger global scale, uncertainties on nanoparticle formation in atmosphere pose an important challenge to our understanding of the indirect radiative forcing of aerosols on global climate change. To mitigate the adverse health impacts as well as better understand the climatic impacts resulting from nanoparticles, a better understanding of their formation mechanisms in various environments is required.

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