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Committee on Health Impact Assessment
Board on Environmental Studies and Toxicology
Division on Earth and Life Studies
National Research Council
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THE NATIONAL ACADEMIES PRESS 500 Fifth Street, NW Washington, DC 20001
NOTICE: The project that is the subject of this report was approved by the Governing
Board of the National Research Council, whose members are drawn from the councils of
the National Academy of Sciences, the National Academy of Engineering, and the Insti-
tute of Medicine. The members of the committee responsible for the report were chosen
for their special competences and with regard for appropriate balance.
This project was supported by contracts between the National Academy of Sciences and
Robert Wood Johnson Foundation, Grant No. 66737; The California Endowment, Grant
No. 20091397; DHHS/CDC, Contract No. 200-2005-13434; and DHHS/NIH, Contract
No. N01-OD-4-2139. Any opinions, findings, conclusions, or recommendations ex-
pressed in this publication are those of the authors and do not necessarily reflect the view
of the organizations or agencies that provided support for this project.
International Standard Book Number-13: 978-0-309-21883-2
International Standard Book Number-10: 0-309-21883-7
Library of Congress Control Number: 2011939904
Additional copies of this report are available from
The National Academies Press
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Box 285
Washington, DC 20055
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http://www.nap.edu
Copyright 2011 by the National Academy of Sciences. All rights reserved.
Printed in the United States of America.
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The National Academy of Sciences is a private, nonprofit, self-perpetuating society of
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Ralph J. Cicerone is president of the National Academy of Sciences.
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are chair and vice chair, respectively, of the National Research Council.
www.national-academies.org
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COMMITTEE ON HEALTH IMPACT ASSESSMENT
Members
RICHARD J. JACKSON (Chair), University of California, Los Angeles
DINAH BEAR, Attorney at Law, Washington, DC
RAJIV BHATIA, San Francisco Department of Public Health; University
of California, San Francisco
SCOTT B. CANTOR, The University of Texas MD Anderson Cancer
Center, Houston
BEN CAVE, Ben Cave Associates, Ltd., Leeds, United Kingdom
ANA V. DIEZ ROUX, University of Michigan, Ann Arbor
CARLOS DORA, World Health Organization, Geneva, Switzerland
JONATHAN E. FIELDING, Los Angeles County Department of Public Health,
Los Angeles, CA
JOSHUA S. GRAFF ZIVIN, University of California, San Diego
JONATHAN I. LEVY, Boston University School of Public Health, Boston, MA
JULIA B. QUINT, California Department of Public Health (retired), Berkeley
SAMINA RAJA, University at Buffalo, State University of New York, Buffalo
AMY JO SCHULZ, University of Michigan, Ann Arbor
AARON A. WERNHAM, Pew Charitable Trusts, Washington, DC
Staff
ELLEN K. MANTUS, Project Director
HEIDI MURRAY-SMITH, Program Officer
KERI SCHAFFER, Research Associate
NORMAN GROSSBLATT, Senior Editor
MIRSADA KARALIC-LONCAREVIC, Manager, Technical Information Center
RADIAH ROSE, Manager, Editorial Projects
PANOLA GOLSON, Program Associate
Sponsors
ROBERT WOOD JOHNSON FOUNDATION
CALIFORNIA ENDOWMENT
NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES
U.S. CENTERS FOR DISEASE CONTROL AND PREVENTION
v
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BOARD ON ENVIRONMENTAL STUDIES AND TOXICOLOGY1
Members
ROGENE F. HENDERSON (Chair), Lovelace Respiratory Research Institute,
Albuquerque, NM
PRAVEEN AMAR, Clean Air Task Force, Boston, MA
TINA BAHADORI, American Chemistry Council, Washington, DC
MICHAEL J. BRADLEY, M.J. Bradley & Associates, Concord, MA
JONATHAN Z. CANNON, University of Virginia, Charlottesville
GAIL CHARNLEY, HealthRisk Strategies, Washington, DC
FRANK W. DAVIS, University of California, Santa Barbara
RICHARD A. DENISON, Environmental Defense Fund, Washington, DC
CHARLES T. DRISCOLL, JR., Syracuse University, New York
H. CHRISTOPHER FREY, North Carolina State University, Raleigh
RICHARD M. GOLD, Holland & Knight, LLP, Washington, DC
LYNN R. GOLDMAN, George Washington University, Washington, DC
LINDA E. GREER, Natural Resources Defense Council, Washington, DC
WILLIAM E. HALPERIN, University of Medicine and Dentistry of
New Jersey, Newark
PHILIP K. HOPKE, Clarkson University, Potsdam, NY
HOWARD HU, University of Michigan, Ann Arbor
SAMUEL KACEW, University of Ottawa, Ontario
ROGER E. KASPERSON, Clark University, Worcester, MA
THOMAS E. MCKONE, University of California, Berkeley
TERRY L. MEDLEY, E.I. du Pont de Nemours & Company, Wilmington, DE
JANA MILFORD, University of Colorado at Boulder, Boulder
FRANK O’DONNELL, Clean Air Watch, Washington, DC
RICHARD L. POIROT, Vermont Department of Environmental Conservation, Waterbury
KATHRYN G. SESSIONS, Health and Environmental Funders Network,
Bethesda, MD
JOYCE S. TSUJI, Exponent Environmental Group, Bellevue, WA
Senior Staff
JAMES J. REISA, Director
DAVID J. POLICANSKY, Scholar
RAYMOND A. WASSEL, Senior Program Officer for Environmental Studies
SUSAN N.J. MARTEL, Senior Program Officer for Toxicology
ELLEN K. MANTUS, Senior Program Officer for Risk Analysis
EILEEN N. ABT, Senior Program Officer
RUTH E. CROSSGROVE, Senior Editor
MIRSADA KARALIC-LONCAREVIC, Manager, Technical Information Center
RADIAH ROSE, Manager, Editorial Projects
1
This study was planned, overseen, and supported by the Board on Environmental
Studies and Toxicology.
vi
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OTHER REPORTS OF THE
BOARD ON ENVIRONMENTAL STUDIES AND TOXICOLOGY
A Risk-Characterization Framework for Decision-Making at the Food and Drug
Administration (2011)
Review of the Environmental Protection Agency’s Draft IRIS Assessment of
Formaldehyde (2011)
Toxicity-Pathway-Based Risk Assessment: Preparing for Paradigm Change (2010)
The Use of Title 42 Authority at the U.S. Environmental Protection Agency (2010)
Review of the Environmental Protection Agency’s Draft IRIS Assessment of
Tetrachloroethylene (2010)
Hidden Costs of Energy: Unpriced Consequences of Energy Production and Use (2009)
Contaminated Water Supplies at Camp Lejeune—Assessing Potential Health
Effects (2009)
Review of the Federal Strategy for Nanotechnology-Related Environmental, Health,
and Safety Research (2009)
Science and Decisions: Advancing Risk Assessment (2009)
Phthalates and Cumulative Risk Assessment: The Tasks Ahead (2008)
Estimating Mortality Risk Reduction and Economic Benefits from Controlling Ozone
Air Pollution (2008)
Respiratory Diseases Research at NIOSH (2008)
Evaluating Research Efficiency in the U.S. Environmental Protection Agency (2008)
Hydrology, Ecology, and Fishes of the Klamath River Basin (2008)
Applications of Toxicogenomic Technologies to Predictive Toxicology and Risk
Assessment (2007)
Models in Environmental Regulatory Decision Making (2007)
Toxicity Testing in the Twenty-first Century: A Vision and a Strategy (2007)
Sediment Dredging at Superfund Megasites: Assessing the Effectiveness (2007)
Environmental Impacts of Wind-Energy Projects (2007)
Scientific Review of the Proposed Risk Assessment Bulletin from the Office of
Management and Budget (2007)
Assessing the Human Health Risks of Trichloroethylene: Key Scientific Issues (2006)
New Source Review for Stationary Sources of Air Pollution (2006)
Human Biomonitoring for Environmental Chemicals (2006)
Health Risks from Dioxin and Related Compounds: Evaluation of the EPA
Reassessment (2006)
Fluoride in Drinking Water: A Scientific Review of EPA’s Standards (2006)
State and Federal Standards for Mobile-Source Emissions (2006)
Superfund and Mining Megasites—Lessons from the Coeur d’Alene River Basin (2005)
Health Implications of Perchlorate Ingestion (2005)
Air Quality Management in the United States (2004)
Endangered and Threatened Species of the Platte River (2004)
Atlantic Salmon in Maine (2004)
Endangered and Threatened Fishes in the Klamath River Basin (2004)
Cumulative Environmental Effects of Alaska North Slope Oil and Gas
Development (2003)
Estimating the Public Health Benefits of Proposed Air Pollution Regulations (2002)
Biosolids Applied to Land: Advancing Standards and Practices (2002)
vii
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The Airliner Cabin Environment and Health of Passengers and Crew (2002)
Arsenic in Drinking Water: 2001 Update (2001)
Evaluating Vehicle Emissions Inspection and Maintenance Programs (2001)
Compensating for Wetland Losses Under the Clean Water Act (2001)
A Risk-Management Strategy for PCB-Contaminated Sediments (2001)
Acute Exposure Guideline Levels for Selected Airborne Chemicals (ten
volumes, 2000-2011)
Toxicological Effects of Methylmercury (2000)
Strengthening Science at the U.S. Environmental Protection Agency (2000)
Scientific Frontiers in Developmental Toxicology and Risk Assessment (2000)
Ecological Indicators for the Nation (2000)
Waste Incineration and Public Health (2000)
Hormonally Active Agents in the Environment (1999)
Research Priorities for Airborne Particulate Matter (four volumes, 1998-2004)
The National Research Council’s Committee on Toxicology: The First 50 Years (1997)
Carcinogens and Anticarcinogens in the Human Diet (1996)
Upstream: Salmon and Society in the Pacific Northwest (1996)
Science and the Endangered Species Act (1995)
Wetlands: Characteristics and Boundaries (1995)
Biologic Markers (five volumes, 1989-1995)
Science and Judgment in Risk Assessment (1994)
Pesticides in the Diets of Infants and Children (1993)
Dolphins and the Tuna Industry (1992)
Science and the National Parks (1992)
Human Exposure Assessment for Airborne Pollutants (1991)
Rethinking the Ozone Problem in Urban and Regional Air Pollution (1991)
Decline of the Sea Turtles (1990)
Copies of these reports may be ordered from the National Academies Press
(800) 624-6242 or (202) 334-3313
www.nap.edu
viii
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Preface
A growing body of evidence indicates that many factors outside the tradi-
tional health field affect public health. The idea that our health is determined
only by our own behavior, choices, and genetics is no longer tenable. Many now
recognize that substantial improvements in public health will occur only by en-
suring that health considerations are factored into projects, programs, plans, and
policies in non-health-related sectors, such as transportation, housing, agricul-
ture, and education.
Health impact assessment (HIA) is a tool that can help decision-makers
identify the public-health consequences of proposals that potentially affect
health. Because of the potential that HIA offers to improve public health, the
Robert Wood Johnson Foundation, the National Institute of Environmental
Health Sciences, the California Endowment, and the U.S. Centers for Disease
Control and Prevention asked the National Research Council to develop a
framework, terminology, and guidance for conducting HIA.
In this report, the Committee on Health Impact Assessment discusses the
need for health-informed decision-making and policies and reviews the current
practice of HIA. The committee provides a definition, framework, and criteria
for HIA; discusses issues in and challenges to the development and practice of
HIA; and closes with a discussion on structures and policies for promoting HIA.
The committee notes that the framework provided in this report is not a reinven-
tion of the field but a synthesis of guidance provided in other documents and
publications. Thus, the reader will find many similarities between the commit-
tee’s descriptions and characterizations and those of other guides.
The present report has been reviewed in draft form by persons chosen for
their diverse perspectives and technical expertise in accordance with procedures
approved by the National Research Council Report Review Committee. The
purpose of the independent review is to provide candid and critical comments
that will assist the institution in making its published report as sound as possible
and to ensure that the report meets institutional standards of objectivity, evi-
dence, and responsiveness to the study charge. The review comments and draft
manuscript remain confidential to protect the integrity of the deliberative proc-
ess. We thank the following for their review of this report: Jason Corburn, Uni-
ix
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x Preface
versity of California, Berkeley; William H. Dow, University of California,
Berkeley; Jonathan C. Heller, Human Impact Partners; Murray Lee, Habitat
Health Impact Consulting; Jonathan Levine, University of Michigan; Linda A.
McCauley, Emory University; David O. Meltzer, University of Chicago; Keshia
M. Pollack, Johns Hopkins Bloomberg School of Public Health; Lindsay
Rosenfeld, Northeastern University; Alex Scott-Samuel, University of Liver-
pool; Nicholas C. Yost, SNR Denton; Lauren Zeise, California Environmental
Protection Agency.
Although the reviewers listed above have provided many constructive
comments and suggestions, they were not asked to endorse the conclusions or
recommendations, nor did they see the final draft of the report before its release.
The review of the report was overseen by the review coordinator, Joseph V.
Rodricks, Environ, and the review monitor, Gilbert S. Omenn, University of
Michigan Medical School. Appointed by the National Research Council, they
were responsible for making certain that an independent examination of the re-
port was carried out in accordance with institutional procedures and that all re-
view comments were carefully considered. Responsibility for the final content
of the report rests entirely with the committee and the institution.
The committee gratefully acknowledges the following for their presenta-
tions: Marice Ashe, Public Health Law and Policy; John Balbus, National Insti-
tute of Environmental Health Sciences; Ronald Bass, ICF International; Larry
Cohen, Prevention Institute; Andrew Dannenberg, U.S. Centers for Disease
Control and Prevention; Paul Farmer, American Planning Association; Ed
Fogels, Alaska Department of Natural Resources; Robert Gould, Partnership for
Prevention; Ralph Keeney, Duke University; Jenelle Krishnamoorthy, U.S. Sen-
ate Committee on Health, Education, Labor, and Pensions; Angelo Logan, East
Yard Communities for Environmental Justice; April Marchese, U.S. Department
of Transportation; John Norquist, Congress for the New Urbanism; Linda Ru-
dolph, California Department of Public Health; Pamela Russo, Robert Wood
Johnson Foundation; and Terry Williams, Tulalip Natural Resources Treaty
Rights Office.
The committee is also grateful for the assistance of the National Research
Council staff in preparing this report. Staff members who contributed to the ef-
fort are Ellen Mantus, project director; Heidi Murray-Smith, program officer;
Keri Schaffer, research associate; James Reisa, director of the Board on Envi-
ronmental Studies and Toxicology; Norman Grossblatt, senior editor; Mirsada
Karalic-Loncarevic, manager, Technical Information Center; Radiah Rose, man-
ager, editorial projects; and Panola Golson, program associate.
I would especially like to thank the members of the committee for their
efforts throughout the development of this report.
Richard J. Jackson, Chair
Committee on Health Impact Assessment
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Contents
SUMMARY ........................................................................................................ 3
1 INTRODUCTION ............................................................................. 14
Health Impact Assessment, 14
The Committee’s Task and Approach, 18
Organization of Report, 19
References, 20
2 WHY WE NEED HEALTH-INFORMED POLICIES
AND DECISION-MAKING ............................................................. 23
Knowledge of Root Causes of Health Consequences, 25
Why Assess the Health Consequences of Policies,
Programs, Projects, and Planning Decisions?, 27
Why Assessments Are Not Being Conducted, 30
What are the Options for Assessment?, 31
Other Benefits of Systematic Assessment of Health Impacts, 33
Conclusions, 34
References, 35
3 ELEMENTS OF A HEALTH IMPACT ASSESSMENT .............. 43
Categories of Health Impact Assessment, 44
Definition of Health Impact Assessment, 45
Who Conducts Health Impact Assessments?, 46
Process for Health Impact Assessment, 47
Summary: What Criteria Define a Health Impact Assessment?, 82
References, 83
4 CURRENT ISSUES AND CHALLENGES IN THE
DEVELOPMENT AND PRACTICE OF HEALTH
IMPACT ASSESSMENT ................................................................. 90
Defining Health for Health Impact Assessment, 90
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xii Contents
Are All Decisions Potential Candidates for Health Impact
Assessment?, 92
Balancing the Need to Provide Timely, Valid Information
with the Realities of Varied Data Quality, 95
Benefits and Challenges of Quantitative Estimation, 99
Characterizing Multiple Health Effects, 101
Assigning Monetary Values to Health Consequences, 102
Valuing and Enabling Stakeholder Participation, 103
The Benefits of a Peer-Review Process for Health
Impact Assessment, 106
Minimizing Conflicts of Interest of Sponsors and Practitioners
of Health Impact Assessment, 107
Managing Expectations: Information May Not Change Decisions, 108
Advancing Requirements for Health Analysis in Environmental
Impact Assessment, 110
Conclusions, 112
References, 114
5 STRUCTURES AND POLICIES FOR PROMOTING
HEALTH IMPACT ASSESSMENT .............................................. 119
Structure and Policies to Support Health
Impact Assessment, 120
Promotion of Education and Training in and Societal
Awareness of Health Impact Assessment, 124
Increase in Research and Scholarship in Health
Impact Assessment, 126
Development of Resources to Support Health
Impact Assessment, 128
References, 128
APPENDIXES
APPENDIX A: EXPERIENCES WITH HEALTH
IMPACT ASSESSMENT .............................................................................. 130
APPENDIX B: BIOGRAPHIC INFORMATION ON THE
COMMITTEE ON HEALTH IMPACT ASSESSMENT........................... 178
APPENDIX C: STATEMENT OF TASK OF THE COMMITTEE
ON HEALTH IMPACT ASSESSMENT ..................................................... 184
APPENDIX D: GLOSSARY ......................................................................... 185
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xiii
Contents
APPENDIX E: SUMMARY OF HEALTH IMPACT
ASSESSMENT GUIDES .............................................................................. 196
APPENDIX F: ANALYSIS OF HEALTH EFFECTS UNDER
THE NATIONAL ENVIRONMENTAL POLICY ACT ............................ 204
BOXES, FIGURES, AND TABLES
BOXES
3-1 Screening: HIA of a Residential Housing Program, 50
3-2 Scoping: Atlanta BeltLine HIA, 56
3-3 Assessment: Northeast National Petroleum Reserve-Alaska, 65
3-4 Examples of Health and Behavioral Effects That Have
Been Addressed Quantitatively in HIA, 67
3-5 HIA Recommendations, 69
3-6 Reporting: Legislation on Paid Sick Days, 74
A-1 European Union Members and When They Joined, 137
FIGURES
S-1 Framework for HIA, illustrating steps and outputs, 7
3-1 Example of a logic framework that maps out the possible
causal pathways by which health effects might occur, 54
A-1 Number of requests for consultation received by the
Québec Ministry of Health and Social Services, 2003-2008, 132
TABLES
1-1 Selected Definitions of Health Impact Assessment, 16
2-1 The Costs of Transportation-Related Health Outcomes, 2008, 29
3-1 Example of a Table Used for Systematic Scoping, 55
3-2 Example of a Matrix to Analyze Health Effects, 63
3-3 Example of a Table for Rating Importance of Health Effects, 64
4-1 Health Impact Assessment by Sector, 93
E-1 A Review of Health Impact Assessment Guides, 197
E-2 Health Impact Assessment Guides for Policies or Plans, 200
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