Exposure to TCDD from base perimeter application of Agent Orange in Vietnam

Ross, John H., Hewitt, Andrew, Armitage, James, Solomon, Keith, Watkins, Deborah K. and Ginevan, Michael E. (2015) Exposure to TCDD from base perimeter application of Agent Orange in Vietnam. Science of the Total Environment, 511 82-90. doi:10.1016/j.scitotenv.2014.11.083

Author Ross, John H.
Hewitt, Andrew
Armitage, James
Solomon, Keith
Watkins, Deborah K.
Ginevan, Michael E.
Title Exposure to TCDD from base perimeter application of Agent Orange in Vietnam
Journal name Science of the Total Environment   Check publisher's open access policy
ISSN 1879-1026
Publication date 2015-04-01
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.scitotenv.2014.11.083
Open Access Status Not Open Access
Volume 511
Start page 82
End page 90
Total pages 9
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Language eng
Abstract Using recognized methods routinely employed by pesticide regulatory agencies, the exposures of military personnel that were mixer/loader/applicators (M/L/A) of Agent Orange (AO) for perimeter foliage at bases during the Vietnam War were estimated. From the fraction of TCDD in AO, absorbed dosage of the manufacturing contaminant was estimated. Dermal exposure estimated from spray drift to residents of the bases was calculated using internationally recognized software that accounted for proximity, foliar density of application site, droplet size and wind speed among other factors, and produced estimates of deposition. Those that directly handled AO generally had much higher exposures than those further from the areas of use. The differences in exposure potential varied by M/L/A activity, but were typically orders of magnitude greater than bystanders. However, even the most-exposed M/L/A involved in perimeter application had lifetime exposures comparable to persons living in the U.S. at the time, i.e., ~ 1.3 to 5 pg TCDD/kg bodyweight.
Keyword Vietnam
Agent Orange
Veteran's exposure
Base perimeter
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 20 Dec

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2015 Collection
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