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Interagency Assessment of Potential
Health Risks Associated with Oxygenated Gasoline

February 1996

National Science and Technology Council
Committee on Environment and Natural Resources

Interagency Oxygenated Fuels Assessment Steering Committee


About the National Science and Technology Council

President Clinton established the National Science and Technology Council (NSTC) by Executive Order on November 23, 1993. This cabinet-level council is the principal means for the President to coordinate science, space, and technology policies across the Federal Government. NSTC acts as a "virtual" agency for science and technology to coordinate the diverse parts of the Federal research and development enterprise. The NSTC is chaired by the President. Membership consists of the Vice President, Assistant to the President for Science and Technology, Cabinet Secretaries and Agency Heads with significant science and technology responsibilities, and other senior White House officials.

An important objective of the NSTC is the establishment of clear national goals for Federal science and technology investments in areas ranging from information technologies and health research, to improving transportation systems and strengthening fundamental research. The Council prepares research and development strategies that are coordinated across Federal agencies to form an investment package that is aimed at accomplishing multiple national goals.

To obtain additional information regarding the NSTC, contact the NSTC Executive Secretariat at 202-456-6100.

About the Office of Science and Technology Policy

The Office of Science and Technology Policy (OSTP) was established by the National Science and Technology Policy, Organization, and Priorities Act of 1976. OSTP's responsibilities include advising the President in policy formulation and budget development on all questions in which science and technology are important elements; articulating the President's science and technology policies and programs, and fostering strong partnerships among Federal, State, and local governments, and the scientific commu nities in industry and academe.

To obtain additional information regarding the OSTP, contact the OSTP Administrative Office at 202-395-7347.


Contents

Executive Summary
Interagency Oxygenated Fuels Assessment Steering Committee
Contributors
External Reviewers
Acknowledgments

Chapter 1: Introduction

    Purpose
    Scope

Chapter 2: Exposure/Dose Profile

    Air Quality
    Human Exposure Estimates for MTBE
    Occupational Exposure - MTBE
    Metabolism, Disposition, and Toxicokinetics of MTBE in Animals
    Biological Measurements in Humans

Chapter 3: Acute Health Effects

    Epidemiologic Studies
    Human Experimental Studies
    Neurotoxic Potential of Methyl Teritary Butuyl Ether

Chapter 4: Long-term or Chronic Effects

    Genetic Toxicity Studies
    Carcinogenicity Studies
    Reproductive and Developmental Effects
    Other Toxic Effects of Long-term Exposure to MTBE

Chapter 5: Risk Characterization

    Acute Health Effects
    Cancer Risk Characterization

Chapter 6: Public Health Research Needs

Appendix A: Summary of Cancer Risk Derivations for MTBE
References


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Interagency Assessment of Potential Health Risks...

Executive Summary

Interagency Assessment of Potential Health Risks Report

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References

Appendix A