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Staff Profiles
Rick Kreutzer, M.D.
Dr. Kreutzer is Chief of the Environmental Health Investigations Branch, CDPH,
and Associate Professor of Epidemiology and Biostatistics at the University of
South Florida. He supervises a broad range of environmental
public health assessment activities, including cancer cluster investigations and
studies of environmental carcinogenesis; studies of adverse reproductive
outcomes; investigations of health impacts from waste sites; consumer products
and nutritional supplements; pesticide exposure assessment; exposure to molds
and mycotoxins; asthma and autism surveillance; and bioterrorism late-phase
response. Dr. Kreutzer has served as Principal Investigator for two
grants funded by the Centers for Disease Control on asthma surveillance in
California. Dr. Kreutzer has also hosted and co-chaired a statewide conference
on the state of knowledge about asthma and its implications for research and
public policy in California. Dr. Kreutzer is also Principal Investigator for an
Agency for Toxic Substances and Disease Registry Cooperative Agreement to
perform public health assessments. Dr. Kreutzer has authored or co-authored
publications on asthma hospitalizations, multiple chemical sensitivities, and
hazardous waste. Dr. Kreutzer received his M.D. degree in 1982 at the University
of Pennsylvania.
During his tenure at EHIB he has overseen the training and advancement of
many staff, the recruitment and training of many post-doctoral trainees,
graduate student trainees, EIS officers, as well as numerous undergraduate
interns. Under his direction, EHIB has also carried out a wide range of
interagency collaborations, federal-state cooperative agreements with the CDC,
EPA, ATSDR, HUD, among others.
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John Petterson,
Ph.D.
 Dr.
Petterson received his Master of Science degree in Asian study from the
California State University, Long Beach (1974) and Ph.D. degree in Anthropology
from University of California at San Diego (1979). Since 1980 he has been the
president of Impact Assessment, Inc., he has also been the director of Sequoia
Foundation since 1983. As a president and director Dr. Petterson is in charge
of many big study projects: Socioeconomic Impact Assessment of Proposed
High-Level Nuclear Waste Repository at Yucca Mountain, Nevada, Department of
Comprehensive Planning, Nuclear Waste Division ($2.8 million in 1996);
Environmental Epidemiology and Toxicology Support Services, CDPH Environmental
Health Investigations Branch ($2.8 million in 2001, $3.5 million in 2004); ATSDR
Superfund Site Investigations,
Health Assessments, Public Health Assessments, Site Review Updates, on 40
Superfund NPL sites ($780,000 in 1998, $880,000 in 2001); Ascertainment of
Environmental Exposure to Tobacco Smoke during Pregnancy, sponsored by the
California Tobacco-Related Disease Research Program, CDPH Genetics Disease
Branch ($2.3 million in 2002); and projects on Childhood Lead Poisoning
Prevention and Control, CDHS Lead Poisoning Prevention Program ($4.3 million in
1997, $3.4 million in 2001, $3.2 million in 2003); etc.
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Frank Barley, Ph.D.
Dr. Barley is a Research Scientist in the Environmental Health Laboratory
Branch. He provides support for
Dr. Flessel's programs at the Environmental Health Laboratory Branch (EHLB). He
is currently part of a small team developing California’s response to a possible
chemical terrorism or industrial accident event.
He has an undergraduate degrees in Chemistry and Biochemistry from the
University of California, Berkeley, and a Ph.D. in Biochemistry from Brandeis
University. His graduate thesis involved an effect of vitamin B-12 in mammalian
tissue culture. He has worked in both public and private laboratories, and has
operated several small businesses. Prior to joining EHLB two years
ago, he supported a medical center bone marrow transplant program for a
number of years. Because of his clinical laboratory background, he is most able
to contribute to projects that have a biological or clinical nature.
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Daniel
Smith, Dr.PH
Daniel Smith received a Master's of Science degree in Environmental Health from
the University of Minnesota, and a Doctor of Public Health degree in
Epidemiology from UCLA. As a Research Scientist with CDPH for more than 20
years, Dr. Smith has worked on a variety of topics, including hazardous waste
sites, cancer clusters, toxic spills and releases, food contamination, and
biomonitoring studies. He is currently the Acting Chief of the Environmental
Epidemiology Section. Dr. Smith has mentored several student interns and
post-graduate trainees, and taught epidemiologic methods at Sacramento State
University and the University of California Extension. His particular interests
are epidemiologic methods and statistical analysis as they relate to
environmental issues, such as risk modeling, surveillance, disease clustering,
and environmental and biological samples.
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Tivo Rojas-Cheatham, MPH
Tivo Rojas-Cheatham, MPH became the Chief of the Community Participation and
Education Section (CPES) of the Environmental Health Investigations Branch (EHIB)
in January of 2005. He has B.A. degree in philosophy from the University of
California at Berkeley. He also received his MPH degree in Community Health
Education from the University of California at Berkeley. Prior to becoming the
CPES chief, Tivo worked as a community health educator for over a decade in EHIB.
In that role the responsibilities included developing and coordinating
educational and community relation activities in coordination with exposure
assessment studies, health studies and other environmental technical assistance
to county health departments and communities. Tivo also worked as a health
education consultant for the Tobacco Control Program of the California
Department of Public Health and was responsible for the development of request for
proposals and technical assistance to county health departments and community
based organizations doing tobacco control work. He has also worked in a
community based organization that provided vocational training and job placement
for farm workers and educational program for at-risk farm worker youth.
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Gayle Windham, Ph.D.
Dr.
Gayle Windham received a Master’s of Science degree (MSPH) in Epidemiology from
UCLA and a PhD in Epidemiology from the
University of California at Berkeley. Dr. Windham’s research focus is on
reproductive outcomes. After UCLA, she worked at the Centers for Disease Control
in the Birth Defects Section and then in Norway, at the National Institute for
Public Health. She returned to the CDC to serve as an Epidemiologic Intelligence
Officer (EISO), and was assigned to the Department of Public Health (DPH) in
California to do a variety of environmental health investigations. Dr. Windham
joined CDPH afterwards, where she has conducted a number of studies on
reproductive outcomes and environmental risk factors during the past 20 years.
Her areas of expertise include pregnancy outcomes such as spontaneous abortion,
fetal growth, and child development, as well as other aspects of reproductive
health such as puberty, infertility, and menstrual function. Particular
exposures she has examined include solvents, drinking water contaminants,
alcohol consumption, video display terminal usage, endocrine disruptors and
tobacco smoke. Dr. Windham has consulted with WHO, and with the CDC on various
Surgeon General’s reports, on active and environmental tobacco smoke (ETS)
exposure. Dr. Windham has been very involved with the International Society for
Environmental Epidemiology, serving as both secretary-treasurer and a counselor
on the board, and is interested in continuing international outreach. She has
been involved with the China program since its inception and also serves as the
EHIB supervisor to U.S. CDC EIS officers being trained here.
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Lixia Zhang, MPH
Lixia
received her BM (Bachelor in Medicine) from Shanxi Medical University, China
(1985), and her MPH from the School of Public Health, University of California
at Berkeley (2002). She has over 20 years of experiences working on the
public health field both
with the California Department of Public Health and the Shanxi Provincial
Center for Disease Control in China. As a research analyst, Lixia has worked on
many research projects such as ‘The Relationship of Cardiovascular and
Respiratory Hospital Admissions and Mortality to the Southern California Fires
2003’; ‘Investigation of Hazardous Air Pollutants (HAPs) and Autism Spectrum
Disorders’; ‘Prenatal Smoke Exposure and Age at Menarche’; ‘Social and Medical
Model Addiction Recovery Trial (SMART)’; 'Children's Blood Lead Levels &
Environmental Correlates in Alameda County'; etc. She has published 12 articles in
peer-reviewed journals. Currently she is working on the Fogarty Cal-China
Training Program as a project coordinator, where her main tasks include project
planning, training curriculum development, travel/visa arrangements, annual
progress report, trainees’ housing and social wellbeing, and the Cal-China web
site development and maintenance. In the next 5 years Fogarty collaborative
project, she will also be working on the bio-banking, epidemiological study and
data analysis related to the Shanghai CDC 1,000,000 people survey.
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