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e. Agent Orange is a chemical herbicide and defoliant, one of the tactical use Rainbow Herbicides. It was used by the U.S. military as part of its herbicidal warfare program, Operation Ranch Hand, [ 1 ] during the Vietnam War from 1961 to 1971. [ 2 ] The U.S. was strongly influenced by the British who used Agent Orange during the Malayan Emergency.
Ecological effects. Agent Orange chemical drums. Agent Orange had devastating ecological effects on Vietnam's plant life, which also contributed to the creation of refugees during the war. The ecological effects of Agent Orange have been reported to continue to affect the daily lives of Vietnamese citizens. A study showed dioxin contamination ...
Exposure to high levels of dioxins in humans causes a severe form of persistent acne, known as chloracne. [34] High occupational or accidental levels of exposures to dioxins have been shown by epidemiological studies to lead to an increased risk of tumors at all sites. [35] Other effects in humans (at high dose levels) may include:
Agent Orange Act of 1991 establishes provisions for the National Academy of Sciences to analyze and summarize scientific evidence regarding presumptive military service exposure to defoliants, dioxins, and herbicides, better known as Agent Orange, during the Vietnam War era. The United States Statute endorses an observation of human medical ...
In Vietnam and the United States, teratogenic or birth defects were observed in children of people who were exposed to Agent Orange or 2,4,5-T that contained TCDD as an impurity out of the production process. However, there has been some uncertainty on the causal link between Agent Orange/dioxin exposure.
Operation Ranch Hand was a U.S. military operation during the Vietnam War, lasting from 1962 until 1971. Largely inspired by the British use of chemicals 2,4,5-T and 2,4-D (Agent Orange) during the Malayan Emergency in the 1950s, it was part of the overall herbicidal warfare program during the war called "Operation Trail Dust".
Specialty. Dermatology. Chloracne is an acneiform eruption of blackheads, cysts, and pustules associated with exposure to certain halogenated aromatic compounds, such as chlorinated dioxins and dibenzofurans. [1] The lesions are most frequently found on the cheeks, behind the ears, in the armpits and groin region.
2,4,5-Trichlorophenoxyacetic acid (also known as 2,4,5-T), a synthetic auxin, is a chlorophenoxy acetic acid herbicide used to defoliate broad-leafed plants. It was developed in the late 1940s, synthesized by reaction of 2,4,5-Trichlorophenol and chloroacetic acid. It was widely used in the agricultural industry until being phased out, starting ...