Post-Vietnam Dioxin Exposure in Agent Orange-Contaminated C-123 Aircraft (2015) / Chapter Skim
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1 Introduction
1 Introduction
Pages 11-15
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From page 11... ...
. that a positive association exists between the exposure of humans to an herbicide agent and the occurrence of disease in humans, the Secretary shall prescribe regulations providing that a presumption of service connection is warranted." With the passage of time, the straightforward interpretation of this legislation -- that a "Vietnam veteran" who contracts a disease that has been determined to be associated with herbicide exposure would be eligible for compensation benefits -- has been subjected to a number of challenges.
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From page 12... ...
and other herbicides that were sprayed in Vietnam remained on the interior of some of the aircraft. In 2012, the USAF School of Aerospace Medicine conducted an exposure assessment to quantify the potential exposure to AO by the AF Reserve personnel or passengers who flew on the C-123 aircraft in the United States, and determined that AO exposures "were unlikely to have exceeded acceptable regulatory standards or to have predisposed persons .
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From page 13... ...
The primary focus of this committee's deliberations is on the results of air and wipe sampling data, collected between 1979 and 2009, from ORH C-123 aircraft that were used by the AF Reserve personnel between 1972 and 1982. These samples were analyzed for the phenoxy herbicides and the TCDD-contaminant of 2,4,5-T.
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From page 14... ...
In fulfilling its charge, the committee evaluated numerous documents submitted by the VA, the C-123 Veterans Association, individual veterans, and other interested parties; and it collected relevant data from published journal articles and technical guidelines derived by authoritative international bodies, such as the World Health Organization and the US Environmental Protection Agency. In addition to information pertaining to the sampling data, the VA gave the committee an extensive collection of possibly pertinent documents, including published papers, technical exposure guidelines, internal AF memos and reports, National Institute for Occupational Safety and Health (NIOSH)
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From page 15... ...
Chapter 2 contains basic background information on the chemical properties of TCDD and a compilation of health guidelines for this compound and consideration of their applicability to the experience of the AF Reservists for use in putting the available sampling data in context. Information about the use of C-123 aircraft in Vietnam and their later use by AF Reserve personnel in the United States and the collection of air and wipe samples from some of these aircraft between 1979 and 2009, are discussed in Chapter 3.
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