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TEMPORAL, SPATIAL AND TOXICOLOGICAL CHARACTERISTICS OF COARSE
PARTICULATE MATTER IN AN URBAN AREA AND RELATION TO SOURCES AND
REGULATIONS
by
Kalarn Cheung
A Dissertation Presented to the
FACULTY OF THE USC GRADUATE SCHOOL
Copyright 2012
UNIVERSITY OF SOUTHERN CALIFORNIA
In Partial Fulfilhnent of the
Requirements for the Degree
DOCTOR OF PHILOSOPHY
(ENVIRONMENTAL ENGINEERING)
August 2012
Kalarn Cheung
Object Description
| Title | Temporal, spatial and toxicological characteristics of coarse particulate matter in an urban area and relation to sources and regulations |
| Author | Cheung, Kalam |
| Author email | kalamche@usc.edu;kalam@ucla.edu |
| Degree | Doctor of Philosophy |
| Document type | Dissertation |
| Degree program | Environmental Engineering |
| School | Viterbi School of Engineering |
| Date defended/completed | 2012-05-22 |
| Date submitted | 2012-06-21 |
| Date approved | 2012-06-21 |
| Restricted until | 2012-06-21 |
| Date published | 2012-06-21 |
| Advisor (committee chair) | Sioutas, Constantinos |
| Advisor (committee member) |
Henry, Ronald C. Chen, Jiu-chiuan Fruin, Scott |
| Abstract | To advance our understanding on the relationship between the sources, chemical composition and toxicity of coarse particles, two comprehensive investigations were conducted in the Los Angeles Basin from 2008 to 2010 to characterize the physico-chemical and toxicological properties of ambient coarse particulate matter (CPM). The first study features of a year-long sampling campaign at 10 sampling sites throughout the basin in an attempt to study the spatial and seasonal characteristics of coarse particles. An intensive study, focusing on the diurnal trends, was conducted at 3 sampling sites to examine how the changes in meteorological conditions throughout a day may affect the source strength and formation mechanisms of coarse mode aerosols. The results from these two studies have become an invaluable tool to advance our understanding on the causes of the temporal and spatial variation of CPM concentrations and chemical composition, and to identify the linkage between toxicity levels and source-specific chemical constituents in CPM. This investigation thereby provides valuable scientific information for environmental policy decision making, and a strong scientific basis to develop cost-effective strategies to protect the public health from CPM exposure. |
| Keyword | coarse particle; health effects; particulate matter; reactive oxygen species; regulations |
| Language | English |
| Part of collection | University of Southern California dissertations and theses |
| Publisher (of the original version) | University of Southern California |
| Place of publication (of the original version) | Los Angeles, California |
| Publisher (of the digital version) | University of Southern California. Libraries |
| Provenance | Electronically uploaded by the author |
| Type | texts |
| Legacy record ID | usctheses-m |
| Contributing entity | University of Southern California |
| Rights | Cheung, Kalam |
| Physical access | The author retains rights to his/her dissertation, thesis or other graduate work according to U.S. copyright law. Electronic access is being provided by the USC Libraries in agreement with the author, as the original true and official version of the work, but does not grant the reader permission to use the work if the desired use is covered by copyright. It is the author, as rights holder, who must provide use permission if such use is covered by copyright. The original signature page accompanying the original submission of the work to the USC Libraries is retained by the USC Libraries and a copy of it may be obtained by authorized requesters contacting the repository e-mail address given. |
| Repository name | University of Southern California Digital Library |
| Repository address | USC Digital Library, University of Southern California, University Park Campus MC 7002, 106 University Village, Los Angeles, California 90089-7002, USA |
| Repository email | cisadmin@lib.usc.edu |
| Archival file | uscthesesreloadpub_Volume4/etd-CheungKala-897.pdf |
Description
| Title | Page 1 |
| Contributing entity | University of Southern California |
| Repository email | cisadmin@lib.usc.edu |
| Full text | TEMPORAL, SPATIAL AND TOXICOLOGICAL CHARACTERISTICS OF COARSE PARTICULATE MATTER IN AN URBAN AREA AND RELATION TO SOURCES AND REGULATIONS by Kalarn Cheung A Dissertation Presented to the FACULTY OF THE USC GRADUATE SCHOOL Copyright 2012 UNIVERSITY OF SOUTHERN CALIFORNIA In Partial Fulfilhnent of the Requirements for the Degree DOCTOR OF PHILOSOPHY (ENVIRONMENTAL ENGINEERING) August 2012 Kalarn Cheung |
