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Advance Prints of fallout totals for each of the contiguous United States from nuclear tests conducted at the Nevada Test Site from through presented.
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If this test were conducted after when improvements in device design were realized, a fold reduction in radiation release is considered feasible. The Plowshare project developed the Sedan test in order to determine the feasibility of using nuclear detonations to quickly and economically excavate large amounts of earth and rock. Proposed applications included the creation of harbors, canals, open pit mines, railroad and highway cuts through mountainous terrain and the construction of dams.

Assessment of the full effects of the Sedan shot showed that the radioactive fallout from such uses would be extensive. Public concerns about the health effects and a lack of political support eventually led to abandonment of the concept. House of Representatives from California , used Sedan as an example of a test which produced a considerable amount of radioactive fallout while giving congressional testimony on the containment of debris from nuclear testing.

However, the name "Sedan" was incorrectly transcribed as " Sudan " in the Congressional Record.

Within days of the error, the international community took notice. Sudanese officials responded by stating that "the Sudanese government takes this issue seriously and with extreme importance". From Wikipedia, the free encyclopedia. Storax Sedan Storax Sedan explosion.

Archived from the original on 1 October Retrieved 25 September Archived from the original PDF on Archived from the original on 17 May Retrieved 4 August An IAEA review of the book: Atlas of Nuclear Fallout, National Institute of Health.


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The Costs and Consequences of U. Nuclear Weapons Since Nuclear Test Film 35". Retrieved 4 August — via YouTube. The Pentagon planned to test a ton ammonium nitrate-and-fuel oil " bunker buster " weapon. The planned " Divine Strake " test would have raised a large mushroom cloud of contaminated dust that could have blown toward population centers such as Las Vegas , Boise , Salt Lake City , and St.

Sedan (nuclear test)

This project was cancelled in February , in large part due to political pressure inspired by the threat of downwind exposure to radioactivity. While many downwinders were exposed to weapons testing, millions more have been affected by radioactive fallout due to U. By February , mounting citizen pressure forced the U. These reports revealed there had been radioactive materials released into the air and Columbia River.

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The reactors used large amounts of water from the river for cooling, which caused materials in the river water to become radioactive as they passed through the reactor. The water and the radioactive materials it contained were released into the river after passing through the reactors, thus contaminating both groundwater systems and aquatic animals downstream as far west as the Washington and Oregon coasts.

The Hanford Thyroid Disease Study, an epidemiologic study of the relationship between estimated exposure doses to radioiodine and incidence of thyroid disease amongst Hanford's downwinders, led by the Fred Hutchinson Cancer Center, was inconclusive. A consolidated lawsuit brought by two thousand Hanford downwinders for personal injury against the contractors that ran Hanford has been in the court system for many years.

The defense in the litigation is fully funded by taxpayer dollars due to Price Anderson indeminification agreements. The first six bellwether plaintiffs went to trial in , to test the legal issues applying to the remaining plaintiffs in the suit. Plutonium was also separated and purified for use in nuclear weapons, which resulted in the release of radioactive material into the air. Radioactive fallout from the Hanford site traveled throughout Washington, Oregon, Idaho, Montana, and even into Canada. Radioiodine entered into the food chain via contaminated fields where cows and goats grazed; hazardous fallout was ingested by communities who consumed the radioactive food and drank the milk.

Another source of contaminated food came from Columbia River fish; their impact was disproportionately felt by Native American communities who depended on the river for their customary diets.

Nevada Test Site - Wikipedia

The estimate of those exposed to radioactive contamination due to living downwind of Hanford or ingesting food or water that flowed downstream is unknown. While the term "downwinders" generally connotes nuclear fallout victims based in the continental U. Now known officially as the Republic of the Marshall Islands , it was a United Nations Trust Territory administered by the United States from —, years during which the United States tested 66 nuclear weapons in the Marshall Islands.

One of these many tests, the March 1, , explosion of Castle Bravo , a U. The fallout-related doses of this single test are believed [ who? Many of the Marshall Islands which were part of the Pacific Proving Grounds remain contaminated by nuclear fallout, and many of those downwinders who were living on the islands at the time of testing have suffered from a highly increased incidence of several types of cancers and birth defects. The primary long-term health hazard associated with exposure to ionizing radiation as a result of nuclear fallout is an increased risk for cancers of the thyroid , other solid tumor cancers, and leukemia.


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The relationship between radiation exposure and subsequent cancer risk is considered "the best understood, and certainly the most highly quantified, dose-response relationship for any common environmental human carcinogen", according to report by the National Cancer Institute. However, women develop cancer from radiation at a rate from The increased radiosensitivity of certain organs in women, such as the breast, ovaries, and thyroid is likely the cause of this difference.

The BEIR VII Committee concluded that, given the same level of radiation exposure, women are 52 percent more likely than men to develop cancer, while the EPA report puts the estimate of difference as high as 58 percent. The differences in risk are even greater when considering organ-specific cancers, especially given that both reports identify breast, ovarian, lung, colon, and thyroid tissues as the most radiosensitive among women.

For example, the FGR 13 has estimated that the ratio of thyroid cancer incidence for women as compared to men is 2.

Health and environmental effects

As increasing concerns are raised regarding the environmental risks related to breast, the BEIR VII report cited evidence that suggests that "radiation may interact synergistically with other risk factors for breast cancer ", raising the possibility that endocrine disrupting chemicals like PCBs and dioxins might combine to increase the risks associated with radiation beyond that which would be caused by either separately. While reducing the radioactive intake of their infants is an important preventative measure, it denies women the opportunity to engage a preventative measure for their own health; i.

By refraining from breastfeeding , women downwinders' risks of breast cancer incidence becomes even more elevated. Evidence about radiation-related pregnancy and birth outcomes comes from studies of nuclear bomb and test site survivors and studies of those exposed to diagnostic and therapeutic radiation.

Mounting research indicates that above certain levels of radiation a miscarriage will result.

Visualizing Nuclear Weapons Testing at the Nevada Test Site

It is also clear that fetal malformations are a greater risk if a woman is exposed to high doses of nuclear-related radiation in early pregnancy, when organs are being formed. If acute radiation exposure occurs in the first ten days following conception, when few cells have formed, it is likely that the embryo will fail to develop and spontaneous abortion will occur. After the 40th day, the effects of radiation exposure are likely to include low birth weight, delayed growth, and possible mental deficits rather than fetal malformations.

Radiation doses above 4, mSv are likely to kill both the mother and the fetus. It has been shown that radiation damage including genome instability and carcinogenesis may occur transgenerationally in both males and females. Downwinders eligible for compensation include those living in specified counties of Nevada, Utah, and Arizona for at least two years between January and October , or during July periods when the United States conducted above ground nuclear tests without warning, and who are able to show correlations between certain diseases and their personal exposure to nuclear radiation.

There are particular obstacles to receiving needed health care and compensation faced by many widows and widowers of Navajo uranium miners, who were affected by disproportionately high incidences of fatal lung cancer. One problem for Navajo widows and widowers seeking the federal benefits for which they are qualified is the requirement that they document their marriages, although many were married in the s and s in undocumented tribal ceremonies.

Language and cultural barriers pose further obstacles to Navajo downwinders; since many elderly Navajos do not speak English, their children bear the responsibility to do the research and procure from a tribal law judge a validation certificate of their tribal marriage. Similarly, it is difficult to access the outdated medical and occupational documentation that the government required even though the government's and uranium companies' own records for Navajo miners are sparse and difficult to access.

From Wikipedia, the free encyclopedia. The examples and perspective in this article may not represent a worldwide view of the subject. You may improve this article , discuss the issue on the talk page.