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The most toxic dioxin, 2,3,7,8-tetrachlorodibenzodioxin (TCDD), became well known as a contaminant of Agent Orange, a herbicide used in the Malayan Emergency and the Vietnam War. [11] Later, dioxins were found in Times Beach , Missouri [ 12 ] and Love Canal , New York [ 13 ] and Seveso , Italy . [ 14 ]
Dibenzodioxin is the carbon skeleton of the poisonous polychlorinated dibenzodioxins (PCDDs), often called dioxins. The most harmful PCDD is 2,3,7,8-tetrachlorodibenzodioxin (TCDD). Dioxins and dioxin-like compounds is a category of pollutants that includes PCDDs and other compounds that have similar structure, toxicity, and persistence.
Dioxin may refer to a number of different substances.Most notably: 1,2-Dioxin or 1,4-Dioxin, two unsaturated heterocyclic 6-membered rings in which two carbon atoms have been replaced by oxygen atoms, which gives the molecular formula C 4 H 4 O 2
1,4-Dioxin (also referred as dioxin or p-dioxin) is a heterocyclic, organic, non-aromatic [2] compound with the chemical formula C 4 H 4 O 2.There is an isomeric form of 1,4-dioxin, 1,2-dioxin (or o-dioxin). 1,2-Dioxin is very unstable due to its peroxide-like characteristics.
On 4 July 1968 the base was subjected to a heavy People's Army of Vietnam (PAVN) rocket and mortar attack followed by probes on the base perimeter resulting in 5 U.S. and 16 PAVN killed. On 23 February 1969 the base was attacked by PAVN sappers.
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Ravens with a T-28D Trojan at Long Tieng, Laos, 1970. The Raven Forward Air Controllers, also known as The Ravens, were fighter pilots (special operations capable) unit used as forward air controllers (FACs) in a clandestine and covert operation in conjunction with the US Central Intelligence Agency (CIA) in Laos during America's Vietnam War.
Dầu Tiếng Lake is an artificial lake in the three provinces of Tây Ninh, Bình Dương, and Bình Phước in the Southeast region, Vietnam. The lake was formed by damming the upper reaches of the Saigon River, making it the largest irrigation reservoir in Vietnam and Southeast Asia. Construction of the lake began in 1981 after surveys ...