Agent Orange was the nickname given to a powerful herbicide and defoliant used by the U.S. military in its Herbicidal Warfare program during the Vietnam War. Between 1961 and 1971 the US sprayed 77 million litres, 8800 tonnes, of Agent Orange over an area of 2.9 million of Vietnam.
Agent Orange was by far the most used of the so-called “rainbow herbicides” used during the program. Degradation of Agent Orange (as well as Agents Purple, Pink, and Green) released dioxins, which are alleged to have caused harm to the health of those exposed during the Vietnam War. Agents Blue and White were part of the same program but did not contain dioxins. Studies of populations highly exposed to dioxin indicate increased risk of various types of cancer and genetic defects; the effect of long term low level exposure has not been established.
Via: Look At This