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Process Modeling Research Branch
Fred Dimmick, Branch Chief
The Process Modeling Research Branch (PMRB) conducts laboratory,
field, and computational studies designed to identify and characterize
the magnitude of transport, transformation and fate of atmospheric gaseous and aerosol
pollutants. Branch research is performed in the areas of atmospheric chemistry,
atmospheric physics, and atmospheric measurement engineering.
The PMRB is responsible for development and implementation of Federal Reference Methods used in implementing National Ambient Air Quality Standards. The PMRB conducts research on pollutant precursors and their role in the
production and decay of pollutants, including particulates, photochemical
oxidants such as ozone, and air toxics. The Branch performs controlled
laboratory and ambient field experimental studies to characterize pollutant
concentrations, their spatial and temporal variation, chemical reaction products, transitory reaction intermediates,
heterogeneous phase distributions of organic and inorganic compounds, aerosol
dynamics, and fluid physics. In doing so the branch advances sampling and analytical methods to measure air pollutants.
The PMRB performs computational studies to predict physical and chemical properties of important pollutant species and to analyze the characteristics of complex chemical mechanisms. The Branch uses these resources to develop chemical and physical mechanisms for regulatory and research air quality models, which are used to provide spatial and temporal predictions of pollutant concentrations.
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Federal Staff |
Specialties |
| Marc Houyoux, Acting Branch Chief |
Emissions modeling and inventories; software development |
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Aerosol science; particle generation
and measurement; wind tunnel sampler performance evaluation |
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X-ray fluorescence analysis and scanning electron microscopy/energy
dispersive x-ray analysis of particulate matter; source apportionment |
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Gas and aerosol-phase
chemistry |
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Aerosol research; methods development and evaluation |
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Environmental public health tracking; air pollution/health relationships;applied atmospheric spectroscopy; atmospheric mercury measurement; solar ultraviolet radiation monitoring program; software development & management; program management; systems engineering; simulation |
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Elizabeth T. Hunike |
Quality Assurance Branch Representative |
Aerosol research; QA Branch representative; and FREM program management |
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Gas and aerosol-phase chemistry |
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Gas and aerosol-phase chemistry |
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Methods development for volatile
organic compounds and ozone precursors |
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Gas and aerosol-phase chemistry |
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Atmospheric chemistry (Las Vegas,
NV) |
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Aerosol research |
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Support Staff (SEEP*) |
Specialties |
|
William
A. Lonneman |
Speciation of VOCs for photochemical
ozone control strategy |
|
Mable L. Miller |
Secretary |
| * SEEP-NAHE =
Senior Environmental Employment Program-National Association
of Hispanic Elderly ...more
details |