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Exposure Measurements and Analysis Branch

Ron Williams, Acting Branch Chief

The Exposure Measurements and Analysis Branch (EMAB) conducts measurement research addressing multiple pathways and routes of exposure to environmental contaminants. This research includes the characterization of chemical, physical and biological substances. The measurement research is conducted by teamwork with other HEASD branches. The measurement research supports source-to-dose modeling efforts, especially providing the data needed to evaluate models. The research is also collaborative with methods development, adaptation, and application research, including the development of chemical analytical methods, field techniques and enhancement of current technologies to address measurement needs.

The products of the Branch's research are used by the Laboratory and the Agency to set priorities, and to design, conduct, model and interpret research on human exposure. The research includes measurements of concentrations of contaminants in environmental media, micro-environments (including indoors), susceptible and sensitive subpopulations, and personal exposures.

EMAB develops statistically-based sampling and analytical plans and surveys for field studies, designs and conducts these field studies to ascertain human exposures and to test new and modified field methods. The results from laboratory and field research are an important part of the Laboratory's overall exposure research program.

 

Federal Staff

Specialties

Ronald W. Williams, Acting Branch Chief
Particulate Matter (PM) Human Exposure Measurements Team Leader
Pesticide and children's exposure research; sampling and analytical method development
Database Manager
Louis DeLaine  
Industrial hygiene; exposure monitoring
Design and conduct statistical analyses of population-based studies; longitudinal study designs; statistical modeling of human exposure
Dr. Bonnie Joubert Epidemiology; genetic susceptibility; high risk populations
Biomarker methods development; analytical biochemistry
Dr. Marsha K. Morgan Human exposure assessments; toxicology
James J. Quackenboss Exposure field studies; survey design and implementation
Dr. Jon Sobus Biomonitoring research; development of analytical methods; statistical models; kinetic models
Quality assurance/quality control
Urban entomologist; fate and transport of residential pesticides; exposure field studies and methods development
Kent W. Thomas Human exposure method development and measurements; analytical chemistry; Agricultural Health Study/Pesticide Exposure Study (AHS) Exit EPA Disclaimer
Dr. Nicolle S. Tulve Multi-media, multi pathway exposure field studies; dermal exposure; macroactivity approach; risk assessment; fluorescence imaging
Dr. Alan Vette  
Human exposure measurements; specialized sampling methods; field and laboratory instrumentation; Quality Assurance Branch Representative
Beatrice Wheless
Branch Secretary

 

Support Staff (SEEP*)

Specialties

Paul Wargo Pesticide metabolism; method development and residue analysis in plants, animals and the environment
Thelma G. Wiggins
Administrative Assistant

* SEEP-NAHE = Senior Environmental Employment Program-National Association of Hispanic Elderly  ...more details

Human Exposure and Atmospheric Sciences

Research & Development | National Exposure Research Laboratory


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