Impact of Agent Orange in Vietnam

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Map showing United States aerial herbicide spraying missions in Vietnam between 1965 and 1971. Aerial-herbicide-spray-missions-in-Southern-Vietnam--1965-1971.jpg
Map showing United States aerial herbicide spraying missions in Vietnam between 1965 and 1971.

Agent Orange is a herbicide, classified as a defoliant, that was used most notably by the U.S. military during the Vietnam War. Its primary purpose was strategic deforestation, destroying the forest cover and food resources necessary for the implementation and sustainability of the North Vietnamese style of guerilla warfare. [1] The U.S. Agent Orange usage reached an apex during Operation Ranch Hand, in which the material (with its extremely toxic impurity, dioxin) was sprayed over 4.5 million acres of land in Vietnam from 1961 to 1971. [2]

Contents

The use of Agent Orange has left tangible, long-term impacts upon the Vietnamese people that live in Vietnam as well as those who fled in the mass exodus from 1978 to the early 1990s. Hindsight corrective studies indicate that previous estimates of Agent Orange exposure were biased by government intervention and under-guessing, such that current estimates for dioxin release are almost double those previously predicted. [3] Census data indicates that the United States military directly sprayed upon millions of Vietnamese during strategic Agent Orange use. [3] The effects of Agent Orange on the Vietnamese range from a variety of health effects, ecological effects, and sociopolitical effects.

Health effects

The most illustrative effects of Agent Orange upon the Vietnamese people are the health effects. Scientific consensus has made it clear that the importance of accuracy in terms of site-specific cancer risk as well as the difficulty in identifying Agent Orange as the cause of that specific cancer risk must be acknowledged. Previous studies on the subject have not been generalizable because though they demonstrate statistically significant increase in cancer risk, the populations have been "Western" veterans or Korean veterans, or the sample sizes were too small to be considered appropriate. [4] The U.S. Environmental Protection Agency defines the margin of exposure as "the ratio of the no-observed adverse-effect-level to the estimated exposure dose." [5] Independent scientific analyses of the epidemiology of Agent Orange suggest that there is little to no margin of exposure for dioxin or dioxin-like compounds on vertebrates, meaning that even passive contact or genetic lineage has devastating repercussions. [6]

Effects on current Vietnamese citizens

Rigorous studies have consequently been conducted to instead measure the levels of dioxin still present in the blood samples of the citizens of both North and South Vietnam. These studies indicate that though most Agent Orange studies have had myopic analyses of American veterans, Vietnamese citizens have had far greater exposure to breadth and scope of the target. The pervasion of dioxin as described by Schechter et al. (made clear in very high TCDD or 2,3,7,8-tetrachlorodibenzo-p-dioxin levels in human milk, adipose tissue, and blood as measured by gas chromatography and mass spectroscopy) in the Vietnamese people living in Vietnam is substantially greater than that of other populations (Schechter et al., 1995). [7] Dioxin levels were corroborated in subsequent studies, most notably those conducted in areas geographically near bombing sites and spray missions during the course of Operation Ranch Hand, approximately between 1962 and 1970. A 2002 sample study of the dioxin levels in the city of Bien Hoa, a populous city in southern Vietnam located in the proximity of an air base used for spray missions, indicated noticeably elevated blood dioxin levels despite a 20-year period of peace, with Agent Orange specifically being found in the blood samples. [8] Emigrants to the city and even children born after the end of the Agent Orange spraying operations had blood samples indicating a presence of dioxin (Schecter et al., 2001). [8] Meta-studies have affirmed the dioxin pathway of genetic inheritance, e.g. a statistically significant correlation between paternal exposure to Agent Orange and spina bifida over three case-control studies from 1966 to 2008 (Ngo et al., 2009). [9]

According to the Vietnamese, the US program resulted in 400,000 deaths caused due to a range of cancers and other ailments, and that approximately 4.8 million Vietnamese people were exposed to Agent Orange according to census data. [10] [11]

Effects on Vietnamese refugees

Following the end of the Vietnam War, two million refugees from Vietnam as well as Laos and Cambodia fled to other countries. By 1992, upwards of 1 million refugees had settled in the United States, 750,000 in other North American and European countries, and many others remained in refugee camps from Thai-Cambodian border to Hong Kong, unable to obtain the visas and immigration documents necessary to permanently immigrate. [12]

Scientific reports have concluded that refugees who had reported being exposed to chemical sprays while in South Vietnam continued to experience pain in the eyes and skin as well as gastrointestinal upsets. In one study, ninety-two percent of participants suffered incessant fatigue; others reported abortions and monstrous births. [13] Meta-analyses of the most current studies on the association between Agent Orange and birth defects have concluded that there is a statistically significant correlation such that having a parent who was exposed to Agent Orange at any point in their life will increase one's likelihood of either possessing or acting as a genetic carrier of birth defects. Vietnamese studies specifically indicated an even greater correlation between parental exposure and birth defects, with scholars concluding that the rate of association varied situationally as degree of exposure and intensity were factors also considered. [14]

Ecological effects

Agent Orange chemical drums Agent-Orange--stack-of-55-gallon-drums.jpg
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 in soil and sediment samples and hypothesized "that a major route of current and past exposures is from the movement of dioxin from soil into river sediment, then into fish, and from fish consumption into people." [8] Studies in the Aluoi Valley, a village near a now-defunct military base that was operating between 1963 and 1966, confirmed this process of biological magnification, as contaminated soil acted as "reservoirs" of TCDD Agent Orange toxin that would later transfer to fish and ducks and finally to humans, all via consumption. [15] The International Union for Conservation of Nature concluded that "much of the damage can probably never be repaired." [16]

Deforestation

Official US military records have listed figures including the destruction of 20% of the jungles of South Vietnam and 20-36% (with other figures reporting 20-50%) of the mangrove forests. [17] An overall reduction in biomass, i.e. plant and animal populations, has been noted along with loss of soil nutrients and ecosystem productivity in terms of growth yields. [18] Forests that have been sprayed multiple times (estimates point to about a quantity of land equaling 500,000 ha (1,200,000 acres)) have extensively exacerbated ecological disadvantages; recovery times are dubious and "the plant and animal communities have been totally disrupted" due to "total annihilation of the vegetative cover". [18] The long-term effect of this deforestation continues to result in less aged foliage and mangroves being unable to grow from even a single spraying, with many patches of economically unviable grass colloquially referred to as "American grass". [17] Farm land that was destroyed in the process of militarization and the creation of battlefields produced an agricultural wasteland, forcing Vietnamese farmers to work with contaminated soil for more than 40 years. [19] The environmental destruction caused by this defoliation has been described by Swedish Prime Minister Olof Palme, lawyers, historians and other academics as an ecocide. [20] [21] [22] [23] [24]

Ecological refugees

The use of Agent Orange is considered a "notorious example" of the expropriation of human environment for warfare, forcing many rural Vietnamese to move to cities as ecological refugees to survive because their crops and livelihood had been destroyed. [25] Harvard professor Samuel P. Huntington noted that during the Vietnam War the urban population doubled or tripled as people moved from rural areas to escape war. [26] Jim Glassman argued that ecological destruction and crop destruction, including from Agent Orange, produced rural refugees to cities and helped as part of counterinsurgency efforts to control rural areas and isolate the population from the Viet Cong. He further wrote that the millions of war refugees "cannot be seen narrowly as the result of one or another form of warfare". [27]

Socio-political effects

Various socio-political effects of Agent Orange have also been documented. Difficulty in maintaining judicial and civil transparency persists despite decades passing since the use of Agent Orange by the United States military. [28] Corporations indicted by the ethicality of their chemical use have been described as "antagonistic and focused on technological arguments". [29]

Vietnamese victims class action lawsuit

The first legal proceeding on behalf of Vietnamese victims was undertaken in January 2004 in a New York district court. [30] Ultimately the district court held that "herbicide spraying . . . did not constitute a war crime pre-1975" and that international law prevented the companies that produced Agent Orange from being liable. [31] Alternative models for reconciling the harms done by dioxin on the Vietnamese people with reparations have also been proposed. Some have called for the defoliation and destruction to be deemed an "environmental war crime". [31] Law reviews have even called for a revision to the litigation process in the US due to the harmful implications regarding justice, reparations, and accountability as a result of the political sway of aggregate private interests. [32]

Citizen-to-citizen dialogue for individuals to call for accountability by the United States government was first established in 2006 by the Ford Foundation. Citizens sought a legal avenue by which private citizens and policy makers could work together to form a coherent plan of action in addressing the legacy of Agent Orange. The US-Vietnam Dialogue Group on Agent Orange/Dioxin, composed of members of the Aspen Institute, Vietnam National University, and Vietnam Veterans Association, is the most notable example of this civic response. Long-term programs and continued check-ups on the state of current plans to address Agent Orange are heavily monitored. [33]

Government responses

Questions of governmental accountability have been raised towards who should be responsible for allowing the use of the chemical dioxin despite knowing the risks. Those who said that the use (at the time of the Vietnam War) of Agent Orange was merely a means of defeating the Viet Cong did not believe that the defoliant violated the Geneva Protocol. [17] During the war, resolutions were introduced to the United Nations charging that the U.S. was violating the 1925 Geneva Protocol, which regulated the use of chemical and biological weapons, however the resolutions were defeated. [34] The extensive environmental damage that resulted from usage of the herbicide prompted the United Nations to pass Resolution 31/72 and ratify the Environmental Modification Convention in 1976. Many states do not regard this as a complete ban on the use of herbicides and defoliants in warfare. [35]

There is reason to believe that sociopolitical context constrains the ability of government bodies to reveal the truth regarding food-behavior research as well as the scientific studies crafted by these bodies; governments may have an incentive to disrupt or obstruct investigations into the matter. [36]

Additional remediative policies have been proposed by concerned groups of citizens due to a lack of governmental accountability. The US-Vietnam Dialogue Group on Agent Orange/Dioxin of the Aspen Institute established a 10-year Plan of Action on June 16, 2010, to call for governmental participation in addressing herbicide effect in Vietnam. This plan calls for the United States and the Vietnamese government to work with other governments and NGOs to invest 30 million dollars over ten years to clean and purify harmed ecosystems and expand services to families who have been affected medically and physically by Agent Orange. [37]

Scientific objections

The current scientific consensus on the effects of Agent Orange concludes that scientists at the time made erroneous judgments on how devastating the chemical could be. Scientific reviews ex post facto have indicated that many of these supposedly objective studies that conclude a beneficial use of Agent Orange were based on access to still classified documents and little else. [38] According to Koppes's study, scientists repeatedly minimized the harmful effects of the chemical and ignored empirical evidence. [38]

Related Research Articles

<span class="mw-page-title-main">Agent Orange</span> Herbicide used by the US in the Vietnam War

Agent Orange is a chemical herbicide and defoliant, one of the tactical use Rainbow Herbicides.

Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of long-lived polyhalogenated organic compounds that are primarily anthropogenic, and contribute toxic, persistent organic pollution in the environment.

<span class="mw-page-title-main">Herbicide</span> Type of chemical used to kill unwanted plants

Herbicides, also commonly known as weed killers, are substances used to control undesired plants, also known as weeds. Selective herbicides control specific weed species while leaving the desired crop relatively unharmed, while non-selective herbicides kill plants indiscriminately. The combined effects of herbicides, nitrogen fertilizer, and improved cultivars has increased yields of major crops by 3x to 6x from 1900 to 2000.

<span class="mw-page-title-main">Operation Ranch Hand</span> 1962–1971 US herbicidal warfare operation in the Vietnam War

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 during the Malayan Emergency in the 1950s, it was part of the overall herbicidal warfare program during the war called "Operation Trail Dust". Ranch Hand involved spraying an estimated 19 million U.S. gallons (72,000 m3) of defoliants and herbicides over rural areas of South Vietnam in an attempt to deprive the Viet Cong of food and vegetation cover. Areas of Laos and Cambodia were also sprayed to a lesser extent. According to the Vietnamese government, the chemicals caused 400,000 deaths. The United States government has described these figures as unreliable.

<span class="mw-page-title-main">Defoliant</span> Chemical sprayed or dusted on plants to cause its leaves to fall off

A defoliant is any herbicidal chemical sprayed or dusted on plants to cause their leaves to fall off. Defoliants are widely used for the selective removal of weeds in managing croplands and lawns. Worldwide use of defoliants, along with the development of other herbicides and pesticides, allowed for the Green Revolution, an increase in agricultural production in mid-20th century. Defoliants have also been used in warfare as a means to deprive an enemy of food crops and/or hiding cover, most notably by the United Kingdom during the Malayan Emergency and the United States in the Vietnam War. Defoliants were also used by Indonesian forces in various internal security operations.

<span class="mw-page-title-main">Herbicidal warfare</span> Use of substances to destroy crops or other plants

Herbicidal warfare is the use of substances primarily designed to destroy the plant-based ecosystem of an area. Although herbicidal warfare use chemical substances, its main purpose is to disrupt agricultural food production and/or to destroy plants which provide cover or concealment to the enemy, not to asphyxiate or poison humans and/or destroy human-made structures. Herbicidal warfare has been forbidden by the Environmental Modification Convention since 1978, which bans "any technique for changing the composition or structure of the Earth's biota".

<span class="mw-page-title-main">Agent White</span>

Agent White is the code name for a herbicide used by the U.S. military in its herbicidal warfare program during the Vietnam War. The name comes from the regulatory requirements of identifying each container of the various herbicides through the addition of colored stripes. The colors used were orange, purple, pink, blue, and white by the manufacturers to ensure that the contents were easily identifiable during shipment and usage, as the colors were selected by the U.S. government. Largely inspired by the British use of herbicides and defoliants during the Malayan Emergency, it was one of the so-called "rainbow herbicides".

<span class="mw-page-title-main">Agent Green</span>

Agent Green is the code name for a powerful herbicide and defoliant used by the U.S. military in its herbicidal warfare program during the Vietnam War. The name comes from the green stripe painted on the barrels to identify the contents. Largely inspired by the British use of herbicides and defoliants during the Malayan Emergency, it was one of the so-called "Rainbow Herbicides". Agent Green was only used between 1962 and 1964, during the early "testing" stages of the spraying program.

<span class="mw-page-title-main">2,4,5-Trichlorophenoxyacetic acid</span> Chemical compound

2,4,5-Trichlorophenoxyacetic acid, 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 in the late 1970s due to toxicity concerns. Agent Orange, a defoliant used by the British in the Malayan Emergency and the U.S. in the Vietnam War, was equal parts 2,4,5-T and 2,4-D. 2,4,5-T itself is toxic with a NOAEL of 3 mg/kg/day and a LOAEL of 10 mg/kg/day. Agent Pink contained 100% 2,4,5-T. Additionally, the manufacturing process for 2,4,5-T contaminates this chemical with trace amounts of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). TCDD is a carcinogenic persistent organic pollutant with long-term effects on the environment. With proper temperature control during production of 2,4,5-T, TCDD levels can be held to about .005 ppm. Before the TCDD risk was well understood, early production facilities lacked proper temperature controls and individual batches tested later were found to have as much as 60 ppm of TCDD.

<span class="mw-page-title-main">Agent Pink</span>

Agent Pink is the code name for a powerful herbicide and defoliant used by the U.S. military in its herbicidal warfare program during the Vietnam War. The name comes from the pink stripe painted on the barrels to identify the contents. Largely inspired by the British use of herbicides and defoliants during the Malayan Emergency, it was one of the rainbow herbicides that included the more infamous Agent Orange. Agent Pink was only used during the early "testing" stages of the spraying program before 1964.

<span class="mw-page-title-main">Rainbow Herbicides</span> Herbicides used by the US in the Vietnam War

The Rainbow Herbicides are a group of tactical-use chemicals used by the United States military in Southeast Asia during the Vietnam War. Success with Project AGILE field tests in 1961 with herbicides in South Vietnam was inspired by the British use of herbicides and defoliants during the Malayan Emergency in the 1950s, which led to the formal herbicidal program Trail Dust. Herbicidal warfare is the use of substances primarily designed to destroy the plant-based ecosystem of an agricultural food production area and/or to destroy dense foliage which provides the enemy with natural tactical cover.

The Vietnam Friendship Village is a residency founded in 1992 by George Mizo, an American veteran of the Vietnam War. The institution serves individuals afflicted by conditions related to Agent Orange while also opening channels of cross-cultural dialogue. Originally conceived of as a residence for children and elderly people presumed to be victims of Agent Orange, the focus of the village has broadened, and it now provides a variety of services such as alternative health treatments, food grown in an onsite garden, and vocational training.

<span class="mw-page-title-main">Ecocide</span> Mass environmental destruction from human activities

Ecocide is the destruction of the environment by humans. Ecocide threatens all human populations who are dependent on natural resources for maintaining ecosystems and ensuring their ability to support future generations. The Independent Expert Panel for the Legal Definition of Ecocide describes it as "unlawful or wanton acts committed with knowledge that there is a substantial likelihood of severe and either widespread or long-term damage to the environment being caused by those acts".

<span class="mw-page-title-main">Environmental impact of war</span> Environmental problems caused by warfare

Study of the environmental impact of war focuses on the modernization of warfare and its increasing effects on the environment. Scorched earth methods have been used for much of recorded history. However, the methods of modern warfare cause far greater devastation on the environment. The progression of warfare from chemical weapons to nuclear weapons has increasingly created stress on ecosystems and the environment. Specific examples of the environmental impact of war include World War I, World War II, the Vietnam War, the Rwandan Civil War, the Kosovo War, the Gulf War, and the 2022 Russian invasion of Ukraine.

Gagetown is a 2009 documentary film that looks into the massive defoliant spray program that was used at CFB Gagetown since 1956. The chemical herbicides used include 50/50 mixtures of 2,4-D/ 2,4,5-T, and Tordon 101, also known as Agent Orange and Agent White.

<span class="mw-page-title-main">2,3,7,8-Tetrachlorodibenzodioxin</span> Polychlorinated dibenzo-p-dioxin, chemical compound

2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) is a polychlorinated dibenzo-p-dioxin (sometimes shortened, though inaccurately, to simply 'dioxin') with the chemical formula C12H4Cl4O2. Pure TCDD is a colorless solid with no distinguishable odor at room temperature. It is usually formed as an unwanted product in burning processes of organic materials or as a side product in organic synthesis.

Fred A. Wilcox is a retired associate professor in the writing department at Ithaca College. He is the author of six books on issues including the Vietnam War, nuclear power, and the Plowshares Movement. Two of his books discuss the effects of Agent Orange, a defoliant used extensively during the war.

<span class="mw-page-title-main">Agent Orange Act of 1991</span>

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 conditions directly related to non-Hodgkin lymphoma, soft-tissue sarcoma, chloracne, and consistent acneform diseases for military personnel who served in the overseas Vietnamese region. The Act of Congress ratifies a medical research compilation of voluntarily contributed blood and tissue samples provided by Vietnam-era veterans serving in Southeast Asia between 1961 and 1975.

<span class="mw-page-title-main">Environmental impact of the Vietnam War</span>

The Vietnam War had a major and long-lasting impact on the environment of the countries affected. The environment of Vietnam was severely degraded by the use of defoliants, bombing and other military activities. North Vietnam utilized the geography and ecology of the region to conceal their activities and move resources, such as via the complex network of tunnels and paths in the Ho Chi Minh trail. In response, the United States developed and deployed technologies and campaigns to clear forests and destabilize soil, greatly impacting the environment. Over time, the long-term Agricultural productivity in parts of Vietnam was reduced by many herbicidal agents and bombing campaigns. The war has also been linked to extensive deforestation and influenced the hydrology of the Mekong region.

Carol Van Strum is an American environmental activist who since 1975 has fought against the spraying of herbicides, including Agent Orange, in the Siuslaw National Forest in Oregon. Her subsequent research, including over 20,000 documents revealing corporate and government cover-ups, was donated to the Poison Papers project in 2017. In 2018, Van Strum received the David Brower Lifetime Achievement Award for her contributions to forestry policy favoring selective harvest without the use of herbicides.

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