News tagged with iodine
Radiation from Japan found in kelp off US West Coast
Radioactive iodine was found in kelp off the US West Coast following last year's earthquake-triggered Fukushima Daiichi nuclear meltdown, according to a new study.
Apr 10, 2012 |
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Scientists track radioactive iodine from Japan nuclear reactor meltdown
Using a new investigative methodology, Dartmouth researchers have found and tracked radioactive iodine in New Hampshire from the Fukushima Daiichi nuclear disaster.
Apr 02, 2012 |
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Sediment sleuthing: Radioactive medicine being tracked through rivers
A University of Delaware oceanographer has stumbled upon an unusual aid for studying local waterways: radioactive iodine. Trace amounts of the contaminant, which is used in medical treatments, are entering ...
Mar 22, 2012 |
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Chemists find new material to remove radioactive gas from spent nuclear fuel
(PhysOrg.com) -- Research by a team of Sandia chemists could impact worldwide efforts to produce clean, safe nuclear energy and reduce radioactive waste.
Jan 24, 2012 |
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Creation of database for promising adsorbents for decontamination of radioactive substances from nuclear power plants
(PhysOrg.com) -- NIMS is collecting basic data on natural minerals produced in various regions and inorganic materials with different chemical compositions as a tool for selecting suitable materials, and will make this information ...
Jan 13, 2012 |
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It's elemental: Paper celebrates discovery of iodine
(PhysOrg.com) -- It's not every day that an element gets to celebrate a bicentennial, and a University of Delaware professor is pleased to have been invited to the "birthday party" for iodine, which was discovered ...
Dec 06, 2011 |
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Fresh radioactive runoff at Japan plant
A fresh leak of radioactive water into the open ocean has been discovered at Japan's crippled Fukushima nuclear complex, its operator said Monday as cleanup efforts continued.
Dec 05, 2011 |
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Hungary likely source of elevated radioactivity levels: IAEA
Elevated levels of the radioactive element iodine-131 that were detected in several nations have been identified as likely originating at a Hungarian research institute, nuclear authorities said Thursday.
Nov 17, 2011 |
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Radioactive iodine: Now France detects traces in atmosphere
France's nuclear watchdog on Tuesday said it had detected traces of radioactive iodine in the air last week after similarly low contamination was reported by the Czech Republic, Poland, Slovakia and Austria.
Nov 15, 2011 |
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Mountains limited spread of fallout from Fukushima
A map of radioactive contamination across Japan from the Fukushima power plant disaster confirms high levels in eastern and northeastern areas but finds much lower levels in the western part of the country, thanks to mountain ...
Space & Earth / Earth Sciences
Nov 14, 2011 |
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Radioactivity in Europe, no public risk: IAEA
The UN atomic agency said Friday "very low levels" of radioactive iodine-131 had been detected in the air in the Czech Republic and in other countries, but presented no risk to human health.
Nov 11, 2011 |
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Technology makes storing radioactive waste safer
(PhysOrg.com) -- Queensland University of Technology (QUT) researchers have developed new technology capable of removing radioactive material from contaminated water and aiding clean-up efforts following nuclear ...
Oct 31, 2011 |
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Fukushima nuke pollution in sea 'was world's worst'
France's nuclear monitor said on Thursday that the amount of caesium 137 that leaked into the Pacific from the Fukushima disaster was the greatest single nuclear contamination of the sea ever seen.
Oct 27, 2011 |
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How algae use a 'sulfate trap' to selectively biomineralize strontium
(PhysOrg.com) -- In any kind of nuclear reactor, there is a small amount of the radioactive isotope strontium-90 that is formed as part of the regular fission process. In fact, fission products such as strontium-90 ...
Oct 21, 2011 |
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Observations of fallout from the Fukushima reactor accident in San Francisco Bay area rainwater
After the magnitude 9.0 earthquake and resulting tsunami in Japan on March 11, 2011, the Fukushima Dai-ichi power plant was severely compromised and radioactive material was found in the water in many of the surrounding areas, ...
Sep 21, 2011 |
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Iodine
Iodine (pronounced /ˈaɪ.ədaɪn/, /ˈaɪ.ədɨn/, or in chemistry /ˈaɪ.ədiːn/; from Greek: ιώδης iodes "violet"), is a chemical element that has the symbol I and atomic number 53. Naturally-occurring iodine is a single isotope with 74 neutrons.
Chemically, iodine is the second least reactive of the halogens, and the second most electropositive halogen; trailing behind astatine in both of these categories. However, the element does not occur in the free state in nature. As with all other halogens (members of Group XVII in the periodic table), when freed from its compounds iodine forms diatomic molecules (I2).
Iodine and its compounds are primarily used in medicine, photography, and dyes. Although it is rare in the solar system and Earth's crust, the iodides are very soluble in water, and the element is concentrated in seawater. This mechanism helps to explain how the element came to be required in trace amounts by all animals and some plants, being the heaviest element commonly used by living organisms (only tungsten, used in enzymes by a few bacteria, is heavier).
For more information about Iodine, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
