Group IV, Source Characterization and Source Emissions
Facilitators: Andy Miller & David Parrish
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The purpose of the source characterization breakout session is to define collaborative research projects that will increase the understanding of the emissions to the atmosphere that determine air-quality. Also, implied in this discussion is the independent evaluation of emission inventories that is based on inconsistencies between our current understanding of these processes and our measurements of ambient concentrations and deposition loadings. The breakout session consisted of scientists from each agency who provided a series of short presentations outlining current and planned future research in source characterization and source emissions. Presentations included the following information concerning future research projects:
- Scientific issue addressed
- Research approach and time-line
- New opportunities afforded by advances in measurement and/or process modeling technologies
- An indication of how the proposed research will increase understanding and lead to improved air-quality management.
EPA - Four 12-minute presentations
Bruce Harris - Measurements of ammonia from animal feeding operations
John Kinsey - Measurement of emissions from diesel trucks & commercial jet aircraft engines.
Chris Geron - Emissions from open and prescribed burning
Mike Hays - Dilution sampling methods and analytical techniques
NOAA - Four 12-minute presentations
Tom Ryerson - Comparison of point-source emission fluxes derived from aircraft measurements with reported CEMS data including aircraft observations from Houston petrochemical facilities.
David Parrish - Using ambient measurements to critically evaluate the temporal trends of U.S. carbon monoxide emission inventories, and trends in benzene emissions.
Tom Pierce - Progress and remaining issues in quantifying biogenic VOC fluxes.
Greg Frost or Michael Trainer - GIS system for examining emission inventories.
Discussion
Following the presentations and a short break, 30 minutes was devoted to a question and answer period for further clarification of the presentations and to identify potential important gaps in source characterization research that were not described in the presentations. The remaining 90 minutes was spent discussing the collaborative research projects that may be undertaken within the framework of existing agency programs or beyond the completion dates for these programs. These projects make best use of the considerable scientific strengths and resources of the two agencies. These discussions provide a list of relevant collaborative research projects that can significantly improve our understanding of emissions and their application to guide air-quality management.
Presentation Slides
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Measurement of Ammonia from Animal Feeding Operations Using Open Path Methodologies. (PDF, 2.3MB, 15 pages). Bruce Harris, US EPA National Risk Management Research Laboratory.
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On-Road Characterization of the Fine Particulate Matter Emissions from Heavy-Duty Diesel Trucks On-Road Characterization of the Fine Particulate Matter Emissions from Heavy-Duty Diesel Trucks. (PDF, 1.0MB, 6 pages). John Kinsey, US EPA National Risk Management Research Laboratory.
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Biomass Burning PM2.5 : Emission studies and Inventory Development. (PDF, 2.1MB, 14 pages). Chris Geron, US EPA National Risk Management Research Laboratory.
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Dilution sampling methods and analytical techniques. (PDF, 530KB, 8 pages). Mike Hays, US EPA National Risk Management Research Laboratory.
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Assessing anthropogenic emissions inventories using measurements from aircraft.(PDF, 358KB, 16 pages). Tom Ryerson, NOAA Aeronomy Laboratory.
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Evaluation of U.S. carbon monoxide and benzene emissions through ambient measurements. (PDF, 358KB, 16 pages). David Parrish, NOAA Aeronomy Lab.
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Progress and Remaining Issues for Quantifying Emissions of Biogenic VOCs. (PDF, 487KB, 16 pages). Tom Pierce, NOAA.
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Emission Inventory Work at the NOAA Aeronomy Lab. (PDF, 231KB, 7 pages). Greg Frost and Stu McKeen, NOAA.
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