UNITED STATES ENVIRCT^CNTAL PROTECTION AGENCY
Region II, Nev York, New York 10271
DATE : January 13, 1989
SUBJECT: Risk Assessment Review
JZ '
FRCM: wrri i »m/j .'^tJj^ynsk i
Deputy RegionaI Administrator
.KiUum
Peter Preuss
Director
Office of Regulatory Support and Scientific Assessment
Attached is a copy of the Risk Assessment Review, a bimonthly
publication that is a cooperative effort between the Office
of Research and Development and the Regional Risk Assessment
Ne two rk.
The Review serves as a focal point for information exchange
among the EPA risk assessment community on both technical
and policy issues related to risk assessment. It is currently
in its second year of publication, and we are pleased at the
positive feedback we've received on the Review's usefulness
to staff across the Agency.
Thanks to all of you who continue to contribute articles
and are involved with production efforts. If you have an
article to contribute or any suggestions for future issues,
contact one of the Cooxsittee members listed on page I of
the review.
At t achment

-------
December 1988
Highlights
•	Updates for Risk Communication Project List p. 1
•	Forum Colloquium on Metals Bioavailability p. 1
•	Risk Assessment Forum Activities	 p. 2
•	BEIR IV Report on Radon Available 	 p. 2
•	Fourth Risk Assessment Meeting
Seattle, WA	 p. 4
•	Seventh Symposium on Methods for
Environmental Quantitative Risk Assessment p. 4
I. Special Features
Updates for Risk Communication Project List
by Ann Fisher (FTS 382-5500)
The October 1988 Risk Assessment Review listed the
members of the Intra-Agency Risk Communication
Workgroup. It also updated the October 1987 list of risk
communication projects in the "problem-specific
consulting and analysis" category. Below is an update
of the skills-building activities. The contact person
listed for a topic can provide more information about its
current status. Call Ann Fisher (FTS 382-5500) or
Derry Allen (FTS 382-4012) for general information
about the Agency's Risk Communication Program
(RCP).
Forthcoming issues of RAR will update the other two
components of the RCP. The entire list is available on
the E-mail Risk Assessment/Risk Management Bulletin
Board. (Once in E-Mail, type "PRPOST" at the >
prompt and "RISK" when asked for a category.)
Risk Communication Training Activities
Ongoing
1.	Risk and Decision Making - introductory course on
the assessment, management, and communication
of risk. It began in the fall of 1987, and 3000 EPA
staffers have attended so far. (Mary Setnicar, FTS
382-2747)
2.	Risk Communication Training - second level
course. About 50 people have been through three
"dry runs," leading to improvements for the final
version. Facilitator training is planned for early
1989. States have expressed interest in using the
course. (Derry Allen, FTS 382-4012)
3.	Risk Communication Training - four-hour course
for Superfund site managers, based on case study
results in Region I. First offered May 1988 and
periodically thereafter. (Sally Edwards, FTS 835-
2993)
4.	Community Environmental Risk Training - The
University of Texas is developing a manual and
"train-the-trainers" course for public officials to
use in communicating with communities about toxic
chemicals in a local environment. Such chemicals
might be in Superfund sites or revealed by Title III
of SARA. (Ann Fisher, FTS 382-5500; Dorothy
McManus, FTS 475-8600; Mike Stahl, FTS 382-
3790).
Risk Assessment Review Committee
Peter Preuss - ORD, FTS 382-7669
Sally Edwards - Region I, FTS 835-3387
Maria Pavlova - Region II, FTS 264-0764
Marian Olsen - Region II, FTS 264-5682
Suzanne Wuerthele - Region VIII, FTS 564-1714
Dana Davoli - Region X, FTS 399-2135
5.	Putting Environmental Risks in Perspective -
booklet explaining in everyday terms how risk
assessment yields a risk estimate at the community
level. Comparison of risk estimates for several
environmental issues, especially as related to a)
Superfund, b) Title III, and c) risks the individual can
mitigate. Initiated 8/88, with OSWER. (Ann Fisher,
FTS 382-5500; Dorothy McManus, FTS 475-
8606)
Proposed
6.	Risk Communication Manual - to draw from
existing specialized risk communication materials
and develop a general manual for communicating
about environmental risks. (Derry Allen, FTS 382-
4012)
7.	Risk Communication Training for Young People -
to work with junior-high students in developing
computer modules about various environmental
risks; potentially to work with National Geographie s
initiative to improve pupils' understanding of
geography and related issues. (Ann Fisher, FTS
382-5500)
Forum Colloquium on Metals Bioavailability
By Suzanne Wuerthele (FTS %64-T7t4)
On December 7th and 8th the Risk Assessment Forum
held a colloquium on "Assessing the Bioavailability of
Lead and Other Metals." As with other colloquia, this
meeting was called to exchange scientific information
and to identify and summarize the current issues on the
topic for referral to the Forum. There is also an
opportunity for colloquia to recommend that the Forum
study certain issues, if appropriate, which this
colloquium will do.
This colloquium is not designed to resolve issues or
develop "answers" to the questions presented. Rather,
it is intended to provide a forum for Agency staff to
discuss current approaches to assessing bioavailability,
to review the current knowledge base, and to identify
key areas for further research. Thus, it is just the first
step in Forum discussion and analysis of this issue, and
no scientific conclusions were expected or reached.
The Forum and the Risk Assessment Council will
discuss whether or not the Forum does additional work.
Risk assessors are well aware of the controversy over
how much soil a child ingests. Paul White (ORD/OHEA,
FTS 382-2584) described experiments underway to
measure children's soil ingestion with the use of tracer
elements. Lisa Ratcliff and Marlene Berg (FTS 382-
4781) described OSWER's current efforts to develop
1

-------
soil ingestion rates guidance, which will include an
attempt to reconcile more than eight different values
currently published in documents issued at different
times by different EPA offices. OSWER is also working
on developing an RfD for lead.
Suzanne Wuerthele (Rjgion VIII, FTS 564-1714)
summarized her poll of Regional risk assessors on
metals issues. Regions asked (1) for a summary of the
current science on metals, particularly lead; (2) for
guidance from headquarters on issues such as
"acceptable" blood lead values, soil ingestion rates,
bioavailability of various metals, analytical methods and
the appropriate use of clinical data at Superfund sites;
(3) for an RfD for lead; and (4) that the Forum
recommend research into these areas.
Representatives of several groups presented method-
ologies for assessing exposure and bioavailability:
•	Jeff Cohen (OAQPS, FTS 629-5282) described
models for estimating blood lead under various
exposure scenarios. A biokinetic model, which takes
age-specific intakes and absorption as well as
pharmacokinetic data into account currently appears
to be most useful for estimating blood leads up to
about 35 iig/dl. Jeff believes this model can help
regional risk assessors and has invited our questions.
•	Raleigh Farlow, a contractor working with Region X,
described the risk assessment approach being used
at the Bunker Hill site in Kellog, Idaho. In this
approach, a baseline exposure for a "typical"
population is first established, then incremental
exposures associated with activities such as eating
local fish or ingesting large amounts of soil are
identified. Contact Dana Davoli (FTS 399-2135) for
further information.
•	Stephanie Irene (OSW, FTS 382-5219) described
an ongoing animal study designed to measure
bioavailability of cadmium from soil and water. OSW
is planning similar studies for selenium, mercury,
nickel, paradichlorobenzene and benzo(a)pyrene.
The possibility of using information from these
studies to validate the MINTAQ model (see below)
was discussed.
Several Program Office representatives attended to
describe their current efforts on the topic of lead. Carl
Mazza (OTS, FTS 382-3822) discussed possible reg-
ulation of lead under TSCA (e.g., mandatory recycling of
batteries, and removal of lead and cadmium from
certain products) and Alan Rubin (OWRS, FTS 475-
7311) described OWRS's approach to tracing dispersal
pathways and calculating risks associated with lead in
sewage sludges. Jeanne Briskin (FTS 382-5456) des-
cribed the rationale for ODW's proposed MCL for lead.
An important question is whether different chemical
species of metals (e.g., lead carbonate or lead sulfide)
might have different bioavailabilities when ingested by
children eating contaminated soils. The answer to that
question obviously has significant implications for
cleanups at large Superfund and other sites. Some
epidemiological data suggesting different bioavail-
abilities (i.e., different blood lead values at sites with
similar soil lead concentrations) is being examined by
Rob Elias (ECAO, FTS 629-4167). Studies using
comparable lead analyses are being evaluated, but it
isn't clear yet whether they are also comparable with
respect to other parameters (e.g., socioeconomic status)
that could account for observed differences in blood
lead.
Dave Brown (Athens ERL, FTS 250-3310) described
the MINTAQ model for calculating the chemical
behavior of metals in soils or other chemical medium. If
capable of describing the behavior of metals in the
gastrointestinal tract, this model might be useful for
predicting bioavailability.
Recommendations for research into the data gaps and a
request for clarification of the Agency's position on
metals issues will be delivered to the Risk Assessment
Forum. The Forum will review these suggestions and
make recommendations about further study by the
Forum or other appropriate groups (e.g., ORD).
II. Headquarters
News from the Risk Assessment Forum
by Unda C. Tuxen (FTS 475-6743)
Exposure Guidelines - in 1986, during the Science
Advisory Board (SAB) review of EPA's proposed
Guidelines for Estimating Exposures, the SAB recom-
mended that additional guidelines be developed to
address general principles for measurement of pollutant
concentrations and, in addition, the limitations of such
measurements for exposure assessment.
As a result, draft exposure measurement guidelines
were developed that supplement the 1986 guidelines by
outlining principles and criteria relating to selecting data
sources, sampling methods, selecting and validating
analytical methods, evaluating and describing
uncertainty in measurement data, and quality
assurance/quality control considerations, among other
things.
The draft-proposed Guidelines for Exposure-Related
Measurements were sent to the Risk Assessment
Forum. Risk Assessment Council, and the Science
Advisory Board for review and recommendations. All
three groups welcomed the guidelines. These
proposed guidelines were published in the Federal
Register (53 FR 48830-48853) on December 2, 1988.
The public comment period ends March 2, 1989.
Risk Assessment Guidelines Implementation - This
program is scheduled to travel to several regions and
laboratories in Winter/Spring 1989. The preliminary
schedule is listed on p. 3.
BEIR IV Report on Radon Now Available
by Frederick Hodge (FTS 475-9650)
/Health Risks of Radon and Other Internally Deposited
Alpha-Emitters. BEIR IV authored by the Committee
on the Biological Effects of Ionizing Radiation, Board
on Radiation Effects Research, Commission on Life
Sciences. National Research Council, published by the
National Academy Press, Washington, DC, 1988.]
2

-------
Risk Assessment Guidelines Implementation -
Preliminary Schedule
Guidelines
Place	Date	Course(s)
Contact
Boston
March"
Exposure
Sara Levinson
Region 1

Assessment
8-833-1718

-
Workshop

New York
February"
Manager's
Man an Olsen
Region II

Seminar
8-264-5682
February *
Carcinogen-



icity Workshop


March *
Chemical



Mixtures



Workshop


April"
Developmental



Toxicity



Workshop


May*
Mutagenicity



Workshop


May*
Exposure



Assessment



Workshop "*

Atlanta
January 17
Developmental
Elmer Akin
Region IV

Toxicity
8-257-2643


Workshop


March *
Carcinogen-



icity Workshop


April *
Mutagenicity



Workshop

Chicago
January 19
Carcinogen-
David Dolan
Region V

icity Workshop
8-886-6195
Kansas City
February *
Chemical
Jaci
Region VII

Mixtures
Schlachter

Workshop
8-757-2815

March *
Carcinogen-



icity Workshop

San Francisco
Week of
Developmental
Arnold Den
Region IX
January 23
Toxicity
8-454-0906


Workshop


February
Exposure


13-14
Assessment



Workshop"

Seattle
February
Exposure
Pat Cirone
Region X
9-10
Assessment
8-399-1597

Workshop"


March *
Carcinogen-



icity Workshop

RTP, N.C.
January
Exposure
Mike Davis
ECAO/
18-19
Assessment
8-629-4162
OAOPS

Workshop"


January 30
Mutagenicity
Fred


Workshop
Hauchman



8-629-5339
" Tentatively scheduled, subject to availability of resources. To
obtain further information on status, call CONTACT listed.
* Exposure Assessment Course - Two-day course on exposure
assessment, including guidelines.
Biological Effects of Ionizing Radiation (BEIR)
committees are composed of experts in their field and
are appointed and governed by the Board on Radiation
Effects Research of the Commission on Life Sciences,
National Research Council, National Academy of
Sciences. Historically, the EPA has used previous BEIR
Reports as the basis of their risk estimates in writing
federal standards for the various radiation hazards to the
U.S. population.
The National Research Council was established by the
National Academy of Sciences in 1916 to associate the
broad community of science and technology with the
Academy's purposes of furthering knowledge and
advising the federal government. The National Academy
of Sciences operates under the authorization of the
charter granted to it by Congress in 1863, which
established it as a private, non-profit, self-perpet-
uating society of distinguished scholars dedicated to
furthering science and technology. The Academy is not
a federal agency nor is it connected to the federal
government. It operates strictly through contracts from
federal agencies. The present BEIR Report, BEIR IV,
was jointly funded by the Environmental Protection
Agency and the Nuclear Regulatory Commission.
BEIR IV describes hazards from radon progeny and
other alpha-emitting radionuclides that humans may
inhale or ingest from their environment. Based on a new
analysis of epidemiological data collected on four
groups of underground miners, original risk estimates
for lung cancer from the inhalation of radon decay
products are presented. The report also provides risk
estimates for radium, thorium, polonium, uranium, and
man-made radionuclides such as plutonium and other
transuranic elements. However, the largest and most
important part of the report deals with health effects of
exposure to radon and its progeny, primarily because of
a need to characterize the lung cancer risk associated
with exposure to radon and its short-lived daughters in
indoor domestic environments.
To fit the miner data, the committee developed a model
in which the risk varies in a complex fashion with age
and time since exposure. Based on a review of
information on radon dosimetry in the lung, the
committee recommended that the model developed
from the miner data be applied directly to the case of
indoor exposures of the general public. It also
recommended that a multiplicative interaction between
smoking and radon be assumed.
The estimate of lifetime risk due to constant lifetime
exposure to radon progeny was estimated to be 350
deaths/106 person-WLM* (excess lifetime lung cancer
mortality). This falls within the range of risk estimates
which EPA has used in recent guidance and rulemaking
(230-920 deaths/106 person-WLM).
"Working Level Month (WLM) is a unit of exposure to radon
progeny. It is defined as the exposure resulting from the inhalation
of air with a concentration of 1 working level of radon daughters
lor 170 working hours. A Working Level (WL) is any combination
of short-lived radon progeny in 1 liter of air that will result in the
ultimate of emission 1 3x10s MeV of alpha energy. To a close
approximation. 1 WL is also the alpha energy released from the
decay of progeny in equilibrium with 100 picocuries of 222 Ra.
3

-------
The differences between risks in mining and domestic
environments ard the interaction between smoking (a
major synergistic contributor) and exposure to radon
progeny are not fully resolved. The NAS and EPA are in
the process of establishing a panel to look at the
extrapolation of risk estimates of radon-induced lung
cancer in underground aniners to residential radon
exposures to the general population.
In addition to a rather sophisticated presentation and
discussion of radon risk estimates, BEIR IV also
summarizes clinical and epidemiological evidence, the
results of animal studies, research on alpha-particle
damage at the cellular level, metabolic pathways for
internal alpha-emitters, dosimetry and microdosimetry
of radionuclides deposited in specific tissues, and the
chemical toxicity of some low specific activity alpha-
emitters.
Copies of the 8E1R IV Report are available for $32.50
(paperbouod) and $42.50 (hardbound) from the National
Academy Press, 2102 Constitution Ave., NW,
Washington, DC, 20418.
(II. Around the Regions
Fourth Regional Risk Assessment Meeting
The fourth Regional Risk Assessment Conference,
which is being hosted by Region 10, will be held on
May 9-12, 1989, in the Sheraton Hotel in Seattle. A
block of rooms is reserved at the hotel for out-of-
town participants. Information on the room reservations
will be sent to all regions as soon as the agenda is
finalized.
The exchange of information afforded by these
conferences is extremely valuable in enhancing EPA's
expertise in risk assessment. In order to assure that
EPA regions have input into this information exchange,
we are asking that representatives from each region
present a talk on risk assessment issues which are
relevant to their program. Please send your suggestions
for topics to Pat Cirone (FTS 399-1597) by January 30,
1989, so that the agenda can be finalized by February
15.
Preliminary Agenda
May 9
Regional Human Health Risk Assessment Issues
Chairperson: QanaOavoli,
Region 10, FTS 39&-2135
1.	Panel discussions on:
~ NESHAPS Rule on Benzene
-	Pesticides
-	Fish Consumption • Risks vs Benefits
2.	Guest Speaker: Dose-Response
3.	Bioavailability
4.	Indoor Air
May 10
Headquarters and Genera/ Issues
Chairperson: Amoid Den,
Region 9, FTS 454-0906
t. Guest Speaker: National Toxicology Program
2.	Revisions to Cancer Guidelines
3.	Developmental Toxicity Guidelines
4.	Male and Female Reproductive Guidelines
5.	Systemic Non-Cancer Guidelines
6.	Revisions to Qioxin Toxicity Equivalence Factors
7.	Inhalation RFDs
May 11
Regional Ecological Risk Assessment Issues
Chairperson: Elmer Akin,
Region 4, FTS 257-2234
Co-Chairperson: Jon Rauscher,
Region 6, FTS 255-6710
1.	Guest Speaker: Perspective on Ecological Risk
Assessment
2.	Status Reports and Discussion of Agency-wide
ecology topics:
-	Superfund Environmental Evaluation Manual
-	Ecological Assessment Manual
-	Ecotoxicity Subcommittee of Risk Assessment
Council
-	EcoRisk Technical Support Center
-	Sediment Quality Criteria
-	Superfund Bio assessment Workgroups
3.	Regional Case Studies
4.	Open discussion of ecological research needs and
other regional items of interest
May 12 (1/2 day}
Administrative Issues Related to Risk Assessment
Chairperson: Bill Muszynski, Region II
(Contact Marian Olsen, FTS 264-5682)
1.	Overview - Lead Region Activities
2.	Risk Assessment Training
3.	Peer Review Process and Quality Assurance of
Risk Assessments
4.	Risk Communication
5.	Next Regional Meeting and Wrap up
EPA Laboratories are invited to present their programs
in the poster sessions which will be held throughout the
3 f 2 days
Contact: Pat Cirone (FTS 399-1597)
IV. Announcements
Seventh Symposium on Methods tor
Environmental Quantitative Risk Assessment
The U S Environmental Protection Agency and the
Center for Environmental Epidemiology of the University
of Pittsburgh will sponsor the Seventh Symposium on
Methods of Environmental Quantitative Risk Assess-
4

-------
ment on April 3 - 5, 1989. The Symposium will be held
at the auditorium of the graduate School of Public
Health of the University of Pittsburgh.
The symposium will include the following topics:
I.	Recent Developments in Multistage Models of
Carcinogenesis. ~
II.	Biologically Motivated Models for Cancer Risk.
III.	The Role of Biologic Markers in Quantitative Risk
Assessment.
IV.	Methods for Modeling Reproductive and Other
Non-Cancer Health Effects.
V.	Future Directions for Research in Quantitative
Risk Assessment.
The registration fee for the Symposium is $125 and
attendance will be limited. For more information
concerning the symposium, please contact the Center
for Environmental Epidemiology, Graduate School of
Public Health, University of Pittsburgh, Pittsburgh, PA
15261. The phone number is (412) 624-1559.
Carcinogen Risk Assessment Course Offered
by Society for Risk Analysis
The Society for Risk Analysis will be offering a course
on Carcinogen Risk Assessment on April 3 - 5, 1989 at
One Washington Circle Hotel in Washington, DC. The
course will cover the risk assessment process, the use
of scientific data in risk assessment, risk initiatives in
federal agencies, and risk management. Special
emphasis will be given to new developments in the
areas of biologically-based modeling, pharmaco-
kinetics and biomarkers.
The agenda for the meeting is:
Monday, April 3,1989
I.	OVERVIEW OF RISK ASSESSMENT
Lecture 1
8:30 - 9:45
Risk Analysis: An Introduction
Roy Albert, University of Cincinnati
Lecture 2
10 :15 - 11.30
The Risk Analysis Process
Betty Anderson, ICF/Clement
II.	THE USE OF SCIENTIFIC DATA
IN RISK ASSESSMENT
Lecture 3
12:45 - 2:00
Epidemiology
Mimi Yu, Univ. Southern California
School of Medicine
Lecture 4
2:00 - 3:15
Reproductive Risk
Mildred Christian, Argus Research
Lecture 5
3:45 - 5:00
Neurological Risk of Lead
Lester Grant, USEPA
Tuesday, April 4,1989
III.	RISK INITIATIVES IN EPA
Lecture 6
8:30 - 9:45
Risk Analysis at EPA
Bill Farland, USEPA
IV.	SPECIAL ISSUES IN RISK ASSESSMENT
Lecture 7
10:15 - 11:30
Exposure Assessment
C. C. Travis, Oak Ridge National Laboratory
Lecture 8
12:45 - 2:00
Biomarkers, Bernard Goldstein
Robert Wood Johnson Medical School
Lecture 9
2:00 - 3:15
Promotion as a Factor
in Risk Assessment
James Trosko, Michigan State University
Lecture 10
3:45 - 5:00
Pharmacokinetics and Inter-species Extrapo-
lation
C. C. Travis, Oak Ridge National Laboratory
Wednesday, April 5,1989
Lecture 11
8:30 - 9:45
Acceptable Risk
Chris Whipple, EPRI
Lecture 12
10:15 - 11:30
Risk Management
Lester Lave, Carnegie-Mellon
Lecture 13
12:45 - 2:00
Risk Communication
Vince Covello, Columbia University
The registration fee is $500 for non-government
employees and $350 for government employees. The
registration fee includes a one-year society
membership with journal subscription, a complimentary
cooy of the new textbook. Carcinogen Risk
Assessment, a wine and cheese reception, and daily
morning and afternoon refreshment breaks.
Hotel accommodations are available at the One
Washington Circle Hotel. One Washington Circle, NW,
Washington, DC. A block of rooms are available at a
special Society of Risk Analysis rate of $105 per night.
For room reservations, please call the hotel at 1-800-
424-9671 or direct dial at (202) 972-1680 by March
16. 1989, and identify yourself as an SRA workshop
attendee.
5

-------
For further information please contact Mary Oran,
Conference Coordinator, Oak Ridge National Laboratory,
P. 0. Box 2008, Bldg. 4500S, MS 6109, Oak Ridge,
Tennessee 37831-6109. Mary can be contacted at
(615) 574-8438 or FTS 624-8438.
PCGEMS Training Workshop
The University of Wisconsin, Center for Continuing
Engineering Education, will be presenting a 5-day
training workshop in Milwaukee from January 30
through February 3, 1989, on the Graphical Exposure
Modeling System Micro Computer Version (PC-
GEMS).
PC-GEMS was developed by the Office of Toxic
Substances, USEPA as an interactive information
management tool designed to assist in a quick and
meaningful analysis of environmental problems. PC-
GEMS features work both independently and in concert
with the more powerful counterparts on the mainframe.
The system provides the following capabilities:
• Environmental Fate and Transport Modeling for
Risk and Decisionmaking Courses Scheduled
The following is the schedule for the Risk and Decision
Making Courses through April:
Region VI
Region VII
Region IX
January 18-19
January 18-19
January 24 - 26
Region V	-
Region I
Region VII	-
Region III	-
Region VI	-
Region IX	-
Region VII	-
Region V	-
Region IV	-
February 14-15
February 22 - 23
February 22 - 23
March 1 - 2
March 22 - 23
March 20 - 22
March 22 - 23
April 11-12
April 26 - 28
Contact: Mary Setnicar (FTS 382-2747)
Contacts:
Surface Water, Air, Groundwater and Soil,
Jerome Puskin
OAR-Rad.
FTS
475-9640
• Chemical Property Estimation,
Linda Tuxen
ORD-RAF
FTS
475-6743
• File Management.
Dick Hill
OPTS
FTS
382-2897
• Graphical Display of Modeled Analyses,
Don Barnes
SAB
FTS
382-4126
• Mapping, and
Dean Hill
NEIC
FTS
776-8138
• Selected GEMS data sites.
Marian Olsen
Region II
FTS
264-5682
PC-GEMS provides a tool for planners, engineers,
Roy Smith
Region III
FTS
597-6682
hydrogeologists and environmental specialists/scientists
Elmer Akin
Region IV
FTS
257-2234
to manage and analyze:
Dave Dolan
Region V
FTS
886-6195
• Environmental Fate and Transport,
Jill Lyons
Region VI
FTS
255-7208
• Chemical Property Estimation,
Bob Fenemore
Region VII
FTS
757-2970
• Data Management,
Arnold Den
Region IX
FTS
454-0906
• Graphics,
Dana Davoli
Region X
FTS
399-2135
•	Geographic Data Analysis and Mapping, and
•	Statistical Analysis.
Course speakers are:
•	Russell Kinerson, Chief, Modeling Section •
Exposure Assessment Branch, U. S. Environmental
Protection Agency, Office of Toxic Substances,
•	Scott Rheingrover, General Science Corporation,
Laurel, Maryland,
•	Stuart Wollman, General Science Corporation,
Laurel, Maryland, and
•	Stephen J. Scott, University of Wisconsin -
Milwaukee, Center for Continuing Engineering
Education.
The registration fee for the course is $995 for the 5-
day training workshop and the enrollment is limited to
20 students.
Further information concerning the course is available
from Dr. Stephen J. Scott - Program Director,
Civil/Environmental Engineering, Center for Continuing
Engineering Education, College of Engineering and
Applied Science, 929 North Sixth Street, Milwaukee,
Wisconsin 53203. Dr. Scott can be contacted at (414)
227-3100.
If you would like to receive additional copies of this and
subsequent Reviews or to be added to the mailing list,
contact:
CERI Distribution
26 W. Martin Luther King Drive
Cincinnati, OH 45268
Need Help?
If your office needs help in finding information or
assistance on a specific risk assessment problem,
you can announce that need on the Risk
Assessment/Risk Management Bulletin Board now
available on E-Mail. Your colleagues from other
offices who have information or advice will be able
to contact you with assistance. For assistance in
posting announcements or reading entries on the
Bulletin Board, contact Electronic Mail User's
Support at FTS 382-5629. Your colleagues from
other offices who have information or advice will be
able to contact you with assistance.	
6

-------