• Cesium (Cs) Chemical properties, Health and ...

    Both radioactive and stable cesium act the same way within the bodies of humans and animals chemically. Cesium in air can travel long distances before settling on earth. In water and soils most cesium compounds are very watersoluble.

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  • Monitoring dissolved radioactive cesium in Abukuma River ...

    total radioactive cesium were less than Bq/L. The level of dissolved radioactive Cs was less than Bq/L at Kawatari point17 located in the uppermost stream of Abukuma iver. We think t the lRow tha disposition of radioactive Cs at Kawatani sampling .

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  • // Radioactive Isotopes in Process Measurement

    For process level and density measurements, whether the isotope is cesium137 or cobalt60, the radioactive materials are inside of a double encapsulated stainless steel cylinder, an example of which is shown in Figure 1.

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  • Study: Cesium from Fukushima flowed to Tokyo Bay for 5 ...

    Jun 07, 2018· Radioactive cesium from the crippled Fukushima No. 1 nuclear power plant continued to flow into Tokyo Bay for five years after the disaster unfolded in March 2011, according to a .

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  • Cesium137: A Deadly Hazard

    Mar 20, 2012· The Dangers of Cesium137. Cesium137 undergoes highenergy beta decay, primarily to an excited nuclear isomer of Barium 137, which in turn undergoes gamma decay with a halflife of about 150 seconds. [4] The energies of both the beta decay of cesium137 and the subsequent gamma decay of the excited barium 137 are 512 keV and 662 keV, respectively.

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  • Understanding Shipping Labels and Placards for Radioactive ...

    Examples of material transported in Type B packagings include spent nuclear fuel, highlevel radioactive waste, and high concentrations of other radioactive material such as cesium and cobalt. These package designs must withstand all Type A tests, AND a series of tests that simulate severe or "worstcase" accident conditions.

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  • Radioactive material from Fukushima disaster turns up in a ...

    Some of highest levels of cesium137 contamination are in groundwater under nearby sandy beaches. Some of the highest levels of radioactive cesium137, a major byproduct of nuclear power generation, are now found in the somewhat salty groundwater beneath sand beaches tens of kilometers away, a .

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  • Radioactive cesium fallout on Tokyo from Fukushima ...

    Jun 27, 2016· Radioactive cesium fallout on Tokyo from Fukushima concentrated in glass microparticles. Because of the high Cs content in the microparticles, the radioactivity per unit mass was as high as ~ 11 Bq/g, which is between 10 7 and 10 8 times higher than the background Cs radioactivity per unit mass of the typical soils in Fukushima.

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  • Comparison of the Radioactive Cesium Contamination Level ...

    Abstract. Levels of radiocesium (134 Cs + 137 Cs) contamination in lake water, bottom sediment, plankton, and fish were investigated in three geographically separated lakes in Fukushima Prefecture (Lake Hayama, Lake Akimoto, and Lake Tagokura) between June 2012 and November of contamination differed among the three lakes, with the highest levels in each measured component .

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  • Radioactive Canadian Salmon Tied to Fukushima Disaster?

    Mar 07, 2017· According to the tests, the samples from the Oregon coast measured around becquerels per cubic meter for cesium 134. Cesium134 is a radioactive isotope formed principally by manmade activity ...

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  • Low Level Radiation: Deadly . Or Harmless? | Washington's Blog

    Aug 23, 2013· Cesium133 is the only naturally occurring isotope and is nonradioactive; all other isotopes, including cesium137, are produced by human activity. Similarly, iodine131 is not a naturally occurring isotope.

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  • Assessment of radiation exposure from cesium137 ...

    Jun 29, 2015· The average radiation dose 2 m horizontally away from the contaminated road side border was used to measure the spatial radiation dose, as the distance between the main work area of shop workers and the contaminated roads' side border averaged 1 to 3 m (the spatial radiation dose 3 m or farther from the side border of the contaminated roads was near the normal level).

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  • Enjoy The Radioactive Fish: Tests Show Fukushima Fish Are ...

    Jan 14, 2014· You are about to read about a test that discovered that a fish recently caught off the coast of the Fukushima prefecture was found to have 12,400 becquerels per kilogram of radioactive cesium. That is 124 times above the level that is considered to be safe.

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  • Mushrooms That Absorb Radioactive Cesium 137 and Other ...

    Mar 20, 2011· Mushrooms That Absorb Radioactive Cesium 137 and Other Radionuclides The lingering effects of the Chernobyl nuclear catastrophe in 1986 in Ukraine continue to affect entire ecosystems in Europe. An example of such effects is the radioactive contamination (cesium137 contamination) of wild mushrooms in certain European countries.

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  • FukushimaVoice: Radioactive Cesium and Heart Chapter 4 ...

    Feb 09, 2013· If the system is damaged due to various agents, including radioactive cesium, the level of free Ca 2+ in cardiomyocytes increases and the relaxation of myofibrils is disrupted. Changes in the contractile apparatus are reflected in changes observed in the double ray refraction of myofibrils: appearance of segmental and subsegmental contractures, intracellular myocytolysis, primary cluster .

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  • Low levels of Fukushima cesium found in West Coast tuna ...

    May 28, 2012· Low levels of Fukushima cesium found in West Coast tuna Scientists hope to test new samples of Pacific bluefin tuna after low levels of radioactive cesium from Japan's Fukushima Daiichi nuclear accident turned up in fish caught off California in 2011, researchers reported Monday.

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  • Radioactivity in the Ocean: Diluted, But Far from Harmless ...

    Apr 07, 2011· According to the Japanese news service, NHK, a recent sample also contained million times the legal level of radioactive cesium137. Studies from previous releases of nuclear material in the Irish, Kara and Barents Seas, as well as in the Pacific Ocean, show that such radioactive material does travel with ocean currents, is deposited in ...

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  • USGS Measures Fallout from Fukushima in US NADP ...

    Radioactive iodine and cesium are often some of the largest contributors to human radiation doses after an accident at a nuclear reactor. Fallout amounts measured in precipitation by NADP were similar to amounts measured by other organizations, which were determined to be well below any level .

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  • (PDF) Removal of Radioactive Cesium (Cs134 plus Cs137 ...

    Removal of Radioactive Cesium (Cs134 plus Cs137) from LowLevel Contaminated Water by Charcoal and Broiler Litter Biochar

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  • Efficient removal of cesium from lowlevel radioactive ...

    Dec 15, 2009· Radioactive Cs137 with the halflife of years is a harmful fission product (FP) contained in lowlevel radioactive liquid waste (LLRLW). Another Csisotope, Cs135 (halflife 2 million years) has a potential longterm adverse impact on environment because of its mobility in final repository . Furthermore, Cs137 is a source of beta radiation, which is called heat generator.

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  • Mushrooms That Absorb Radioactive Cesium 137 and Other ...

    Mar 20, 2011· The European Commission recommends that the UK, Ireland and other member countries of the European Union should not sell natural products that exceed the permitted maximum level of radioactive cesium137 which the Commission has set to 600 becquerel per kilogram. In Japan, the maximum limit has been set to 300 becquerel per kilogram.

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  • Cesium Eliminator

    This is orders of magnitude higher than any level of radioactive cesium which has so far been detected in any food. Disclaimer: Radioactive cesium isotope binding has not been tested in humans for obvious reasons: it would be unethical to feed humans radioactive food.

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  • Radiation Levels in California | Gathering Spot

    Apr 03, 2012· Radiation levels 500% higher than normal are being found in coastal seaweed. Los Angeles and Anaheim, high population centers, are receiving the highest amounts of radioactive fallout right now, over 1 year later. (research shows chronic exposure to low level radiation is more dangerous than acute exposure to high doses.)

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