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Strontium is a naturally occurring element found in rocks, soil, dust, coal, and oil. Naturally occurring strontium is not radioactive and is referred to as stable strontium. Stable strontium in the environment exists in four stable isotopes, 84 Sr (read as strontium 84), 86 Sr, 87 Sr, and 88 Sr. Twelve other unstable isotopes are known to exist.
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Strontium is a silvery metal found naturally as a non-radioactive element. About 99% of the strontium in the human body is concentrated in the bones.
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Radioactive strontium-89 is given intravenously for advanced bone cancer or cancer that has spread to the bones such as metastatic prostrate cancer. The drug name for this radioactive form is Metastron. According to Cancer Research UK, "If …
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Radioactive strontium therapy treats cancers that have spread to the bone. Radioactive strontium is a radioactive form of the metal strontium (Strontium 89). It has the brand name Metastron. The radioactive strontium is picked up by the cancer cells in the bone. This is because it is similar to calcium, which is also absorbed by bone cells.
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21 Statement on findings of high Strontium-90 levels at Hunters Point Naval Shipyard Superfund site Greenaction for Health and Environmental Justice is not surprised that high levels of dangerous radioactive waste – namely, the radioactive isotope Strontium-90 – remain at the Hunters Point Naval Shipyard Superfund site above proposed remedial ...
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Strontium is an alkaline earth metal discovered in 1808 by Humphry Davy. It is a reactive element and has various useful radioactive isotopes. History and Discovery. Strontium was discovered earlier from mineral of barium (barium carbonate) by Adair Crawford in 1798. Strontium was formally discovered by Humphry Davy in 1808.
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For example, primordial isotopes thorium-232, uranium-238, and uranium-235 can decay to form secondary radionuclides of radium and polonium. Carbon-14 is an example of a cosmogenic isotope. This radioactive element is continually formed in the atmosphere due to cosmic radiation…
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A radioactive isotope is one that breaks apart and gives off some form of radiation. Radioactive isotopes are produced when very small particles are fired at atoms. These particles stick in the atoms and make them radioactive. One radioactive isotope of strontium, strontium-90, is of special interest.
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While natural strontium is stable and not hazardous to health, the synthetic Sr-90 isotope is radioactive and a dangerous component of nuclear fallout. World resources of strontium …
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Radioactive Material Safety Data Sheet: Strontium-90 Page 2 of 3 1. A radiation survey meter equipped with a thin-window, energy-compensated Geiger Mueller detector. 2. A radiation contamination monitor equipped with a Geiger Mueller pancake detector. 3. A radiation survey meter equipped with a plastic scintillator detector. Dosimetry
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Radioactive Strontium. Following exposure to radioactive strontium compounds, the most severe non carcinogenic effects seen are the result of incorporation of radioactive strontium, an emitter of beta radiation, into the skeleton, with subsequent irradiation of surrounding tissues (ATSDR 2001e). The cells
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23 Radioactive Strontium-90 is produced when uranium and plutonium undergo fission. Fission is the process whereby the nucleus of a radionuclide breaks down into smaller parts. Large amounts of radioactive strontium were produced during nuclear weapons testing.
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Strontium has properties similar to those of its two vertical neighbours in the periodic table, calcium and barium. It is found naturally in the minerals celestite and strontianite. The 90 Sr isotope is present in radioactive fallout and has a half-life of 28.9 years. Strontium forms …
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tables during the strontium chipping process. One strontium capsule, called the tracer capsule, is filled with non-radioactive strontium. The strontium "standard capsules" contain chemical impurities including barium, lead, cadmium, chromium, and silver. The strontium "waste capsules" also could contain inorganic materials from the
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Strontium is the 15th most common element on the planet. The silvery-yellow metal is non-radioactive and has several applications in medicine. Radioactive strontium-89 is given intravenously to relieve bone pain in people with advanced bone cancer.
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Radioactive Strontium. There are two forms of radioactive strontium: Strontium-89 and strontium-90. Strontium-89 and -90 are the result of nuclear fallout and are considered unstable, but strontium-90 is particularly dangerous. Strontium-90 is found in soil, although generally in small quantities.
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Strontium. Also known as: N/A. Chemical reference number (CAS): . Strontium is a mineral that can occur non-radioactive and radioactive forms. The non-radioactive form of strontium is formed naturally in the environment and is commonly found in soil, bedrock, and groundwater. Non-radioactive strontium is used to make ceramics, glass ...
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Strontium's non-radioactive isotopes are considered non-toxic. Characteristics: Strontium is a soft, silvery metal. When cut it quickly turns a yellowish color due to the formation of strontium oxide (strontia, SrO). Finely powdered strontium metal is sufficiently reactive to ignite spontaneously in air.
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Exposure to stable or radioactive strontium occurs from ingesting contaminated food or drinking water or breathing contaminated air. In children, high levels of stable strontium can impair bone growth. High levels of radioactive strontium can cause anemia or cancer. Strontium has been found at 101 of the 1,585 National Priority List sites identified by the Environmental Protection Agency (EPA).
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Although strontium-90 is a dangerously radioactive isotope, it is a useful by-product of nuclear reactors from whose spent fuel is extracted. Its high-energy radiation can be used to generate an electric current, and for this reason it can be used in space vehicles, remote weather stations and navigation buoys.
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Strontium-90 is the radioactive form of strontium. Its half-life (the amount of time it takes for half of the strontium to give off its radiation and change into another substance) is 29 years. List of known side effects. Strontium-90 can be considered as having cancer-causing elements because it damages the genetic material (DNA) in cells ...
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Other articles where Strontium-90 is discussed: strontium: Occurrence, properties, and uses: …of which the longest-lived is strontium-90 (28.9-year half-life). This isotope, formed by nuclear explosions, is considered the most dangerous constituent of fallout. Because of its chemical resemblance to calcium, it is assimilated in bones and teeth, where it continues ejecting electrons that ...
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Strontium also plays an important role in figuring out the origins of species: Anthropologists measure the levels of strontium ions in bones and teeth to help determine the geographic origins of ancient humans and animals. While natural strontium is harmless, one of its isotopes, Sr-90, carries a more sinister reputation: It is a dangerous ...
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This type of radioactive strontium if present in the diet will also accumulate in bone structures and lead to cancer. Natural strontium is safe to ingest and is a common element in seawater and present in higher concentrations in soil than native carbon often is. Studies as of 1985 where 600 to 700 milligrams of strontium were included in the ...
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radioactive strontium by breathing air, eating food, or drinking water. ' Food and drinking water are the largest sources of exposure to strontium. ' You can be exposed to radioactive strontium if you eat food that was grown in contaminated soil, or if you come
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The review presents a summary of studies about the origin of stable and radioactive strontium in the environment and effects coming from both internal and external exposure of plants. Mobility and availability of strontium to plant roots in soil are controlled by external factors such as chemical composition of the soil and pH, temperature and ...
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Strontium-90 A fission product with properties close to calcium. Strontium-90 is with cesium-137 a major radioactive product of nuclear fission. After the explosion of an atomic bomb or within a nuclear reactor, it is abundant: 5.8% of uranium-235 fissions produces this radioelement.
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Strontium is a naturally occurring element found in rocks, soil, dust, coal, and oil. Naturally occurring strontium is not radioactive and is either referred to as stable strontium or strontium. Strontium in the environment exists in four stable isotopes, 84 Sr (read as strontium eighty …
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Radioactive isotopes eventually decay, or disintegrate, to harmless materials. Some isotopes decay in hours or even minutes, but others decay very slowly. Strontium-90 and cesium-137 have half-lives of about 30 years (half the radioactivity will decay in 30 years). Plutonium-239 has a half-life of 24,000 years.
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Radioactive strontium-90 is produced when uranium and plutonium undergo fission. Fission is the process in which the nucleus of a radionuclide breaks into smaller parts. Large amounts of radioactive strontium-90 were produced during atmospheric nuclear weapons
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