Grantee Research Project Results

Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Cal Tech, UC-Riverside, UC-San Diego, UC-Davis Report

EPA Grant Number: R826371C001
Subproject: this is subproject number 001 , established and managed by the Center Director under grant R826371
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
Center: Rochester PM Center
Center Director: Oberdörster, Günter
Title: Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Cal Tech, UC-Riverside, UC-San Diego, UC-Davis Report
Investigators: Bhave, Prakash , Prather, Kimberly A. , Kleeman, Michael J. , Cass, Glen
Current Investigators: Bhave, Prakash , Prather, Kimberly A. , Cass, Glen , Kleeman, Michael J.
Institution: California Institute of Technology , University of California - Riverside , University of California - San Diego , University of California - Irvine
Current Institution: California Institute of Technology , University of California - Irvine , University of California - Riverside , University of California - San Diego
EPA Project Officer: Hahn, Intaek
Project Period: April 15, 1998 through April 14, 2003
RFA: Special Opportunity in Tropospheric Ozone (1997) RFA Text | Recipients Lists
Research Category: Air Quality and Air Toxics , Air

Objective:

This is one of the projects conducted by the Research Consortium on Ozone and Fine Particle Formation in California and in the Northeast United States. In this particular project, source-oriented air quality model predictions of the size and chemical composition of individual atmospheric particle classes were evaluated against single-particle measurements taken by aerosol time-of-flight mass spectrometry (ATOFMS) and applied to assess the source apportionment accuracy of a single-particle receptor-oriented method. The distinguishing feature of the air quality model used in these studies is that the ambient aerosol is represented as an ensemble of compositionally distinct particle classes, rather than as an internally mixed distribution in which the chemical composition of all like-sized particles are assumed to be identical. The air quality model tracks the physical diameter, chemical composition, and atmospheric concentration of thousands of particle classes as they are transported from sources to receptors while undergoing atmospheric chemical reactions. Each particle class interacts with a common gas phase, but otherwise evolves separately from all other particle classes, yielding an aerosol population in which particles of a given size may exhibit different chemical compositions (Kleeman, et al., 1997).

Publications and Presentations:

Publications have been submitted on this subproject: View all 4 publications for this subproject | View all 47 publications for this center

Journal Articles:

Journal Articles have been submitted on this subproject: View all 4 journal articles for this subproject | View all 44 journal articles for this center

Supplemental Keywords:

air quality monitoring, ambient air, particulate, ozone, environmental chemistry, California, Northeastern United States., RFA, Air, particulate matter, tropospheric ozone, ambient air quality, particulates, ozone occurrence, aerosol time-of-flight mass spectrometry (ATOFMS), ambient measurement methods, ozone, ambient air, National Ambient Air Quality Standard, Los Angeles, control measure modeling, modeling studies

Progress and Final Reports:

Main Center Abstract and Reports:

R826371 Rochester PM Center

Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
R826371C001 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Cal Tech, UC-Riverside, UC-San Diego, UC-Davis Report
R826371C002 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Cal Tech, Carnegie Mellon, Georgia Institute, NJIT, Oregon Institute, UC-Irvine, UC-Riverside Report
R826371C003 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Cal Tech Report
R826371C004 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: California - Irvine Report
R826371C005 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Carnegie Mellon Report
R826371C006 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Carnegie Mellon Report
R826371C007 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: UC-Riverside
R826371C008 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: Oregon Health and Science Report
R826371C009 Research Consortium on Ozone and Fine Particle Formation in California and in the Northeastern United States: NJIT Report

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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.