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The
Epidemiologic Study Report is now available -- PDF
The Environmental Study Report is available at http://ssflreport.sytes.net/.
No public meetings
to discuss the study findings have been scheduled at this time.
__________________
On February 2,
2006, Drs. Morgenstern and Cohen presented findings of their environmental
and epidemiologic research studies to community members of Simi Valley
at a Santa Susana Field Laboratory (Rocketdyne) Workgroup Meeting:
Environmental Study
Potential for Offsite Exposures Associated with Contaminants for
Santa Susana Field Laboratory
presented by Yoram Cohen, Ph.D., M.A.Sc., B.A.Sc., Professor of Chemical
Engineering, University of California, Los Angeles
Link to Environmental
Study Report
Epidemiologic Study
Cancer Incidence Surrounding the Rocketdyne Facility in Southern
California: Interim Report
presented by Hal Morgenstern, Ph.D., Professor, Department of Epidemiology,
University of Michigan School of Public Health
Please
check back to this page for study material.
Environmental
Study
Dr. Yoram Cohen led a UCLA-based environmental
engineering team that conducted a study to investigate how contaminants
might migrate from the Santa Susana Field Laboratory to nearby communities
and the potential for community exposures to these chemicals. While extensive
media sampling has been conducted at SSFL for the past two decades, little
attention has been paid to studying how contaminants might physically
reach community members. This study allows better understand of how people
may have been exposed.
The study team analyzed various
exposure pathways in order to better understand how chemicals might have
migrated away from the SSFL and the associated potential for exposure
of residents in the SSFL area to chemicals and radiation. In order to
understand what pathways are possible, scientists evaluated and analyzed
available data and carried out model calculations (e.g., emission estimates,
air dispersion modeling and dose estimates).
This Study Addresses:
- Possible contaminants,
exposure pathways, and hotspots of concern
What Study Cannot
Address:
- Cannot make conclusive
claims about whether activities at SSFL "caused" health problems
for community members
What Study Adds:
- A greater understanding
as to the potential impact of SSFL activities on community exposure
to chemicals released from the SSFL.
Epidemiologic
Study
Dr. Hal Morgenstern conducted an epidemiologic
study of cancer incidence in the residential population surrounding the
Santa Susana Field Laboratory. His analysis included data from the California
Tumor Registry for Los Angeles and Ventura Counties for the 16-year period,
1988-2003.
What Study Provides:
- Compares cancer incidence
for regions less than 2 miles, between 2 and 5 miles, and more than
5 miles from SSFL.
- Examines 6 cancer outcomes:
total cancers; "radiosensitive" cancers; "chemosensitive"
cancers; bladder, lung, breast, melanoma, colorectal, and lymphoppoetic
cancers.
What Study Cannot
Address:
- Cannot make conclusive
claims about whether activities at SSFL caused health problems for community
members because of various methodologic limitations, e.g., instability
of the population, lack of exposure data, and missing information on
other cancer risk factors that might bias the results.
What Study Adds:
- A quantitative description
of whether, and to what extent, the incidence of cancer has been greater
in the population living closer to SSFL, taking into consideration age,
gender, and race/ethnicity.
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