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#1336 |
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Working with pure beryllium, beryllium compounds (e.g. beryllium oxide), or beryllium alloys causes occupational exposure.
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#1337 |
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Beryllium dust and fumes are classified as toxic air pollutants by the Environmental Protection Agency (EPA). It is estimated that 2–6% of workers exposed to these contaminants eventually develop berylliosis.
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#1338 |
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This condition is caused by beryllium air pollution that inflames the lungs making them rigid; it can affect the eyes and skin as well. People who have acute berylliosis are usually veryill. Most recover, but some die of the disease.
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#1339 |
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The beryllium lymphocyte proliferation test (BeLPT), a blood test that can detect beryllium sensitivity (i.e. an allergic reaction to beryllium), is used to screen individuals at risk of developing berylliosis.
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#1340 |
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Beryllium Support Group. P.O. Box 2021, Broomfield, CO 80038-2021. (303) 412-7065.
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#1341 |
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"Beryllium Chemical Backgrounder." Environmental Health Center Page. 28 May 1998
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#1342 |
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"Beryllium Disease: Reducing the Risks." National Jewish Medical Research Center Page. 28 May 1998
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#1343 |
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This web site was formally launched on March 12, 1996 by Michael Jackson (
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#1344 |
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current and historical information relating to the health risks of using beryllium
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#1345 |
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The essentials
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#1346 |
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Here is a brief description of beryllium.
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#1347 |
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Here is a brief description of beryllium.
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#1348 |
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#1349 |
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Beryllium (IPA: /bəˈrɪliəm/) is the chemical element that has the symbol Be and atomic number 4. A bivalent element, elemental beryllium is a steel grey, strong, light-weight yet brittle, alkaline earth metal. It is primarily used as a hardening agent in alloys (most notably beryllium copper).
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#1350 |
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Notable characteristicsBeryllium has one of the highest melting points of the light metals. The modulus of elasticity of beryllium is approximately 1/3 greater than that of steel. It has excellent thermal conductivity, is nonmagnetic and resists attack by concentrated nitric acid. It is highly permeable to X-rays, and neutrons are liberated when it is hit by alpha particles, as from radium or polonium (about 30 neutrons/million alpha particles). At standard temperature and pressures beryllium resists oxidation when exposed to air (although its ability to scratch glass is probably due to the formation of a thin layer of the oxide). The speed of sound in beryllium (12,500m/s) is greater than in any other element.
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