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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 ...
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.
Schamberg's disease is a skin disorder that causes a discoloration of the lower extremities. [4] It usually occurs in the lower extremities and rarely elsewhere. [4] This condition is caused by leaky blood vessels near the surface of the skin. [7] The cause of the leaky capillaries is usually not known. [7]
Signed into law by President George H. W. Bush on February 6, 1991. 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.
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.
Porphyria cutanea tarda (PCT) is recognized as the most prevalent subtype of porphyritic diseases. [3] PCT is characterized by onycholysis and blistering of the skin in areas that receive higher levels of exposure to sunlight. The primary cause is a deficiency of uroporphyrinogen decarboxylase (UROD), a cytosolic enzyme that is a step in the ...
Anthrax is an infection caused by the bacterium Bacillus anthracis. [2] Infection typically occurs by contact with the skin, inhalation, or intestinal absorption. [9] Symptom onset occurs between one day and more than two months after the infection is contracted. [1]
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: