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Characterization of Representative Ambient Air Ultrafine and Nanoparticulate Matter in the El Paso-Juarez Metroplex: Morphology, Chemical Compositions, and Speciation

EPA Grant Number: U916096
Title: Characterization of Representative Ambient Air Ultrafine and Nanoparticulate Matter in the El Paso-Juarez Metroplex: Morphology, Chemical Compositions, and Speciation
Investigators: Bang, John J.
Institution: University of Texas at El Paso
EPA Project Officer: Broadway, Virginia
Project Period: September 1, 2002 through August 31, 2003
Project Amount: $26,798
RFA: Minority Academic Institutions (MAI) Fellowships for Graduate Environmental Study (2002)
Research Category: Fellowship - Environmental Engineering , Engineering and Environmental Chemistry , Academic Fellowships

Description:

Objective:

The objective of this research project is to build a database for follow-up studies in the future by characterizing representative ambient air individual particulate matter (PM) in nanometer regime with respect to their chemical composition, morphology, and speciation.

Approach:

The impact of ambient PM in the ultrafine or nanometer regime on human health has been shown to be far worse than that of PM10 or PM2.5 in recent studies. One way to resolve this issue is to find a way to either reduce the level of production or to block certain pathways involved in the production of the small particles. In either case, it is believed that identification of individual ambient air nanoparticulate matter of interest, along with their source characterization, would be one of the first steps to conduct to fully understand some crucial mechanisms of the PM generation in the air.

Supplemental Keywords:

fellowship, ultrafine particulate matter, PM, nanoparticles, ambient air, air pollution, crystalline components, layered structures, carbonaceous nanotubes, respiratory health, thermophoretic precipitator

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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