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The samples taken from Bavarian wild boars have a high ratio of Cesium 135 to Cesium 137, which indicates that the contamination must have come from nuclear bomb testing performed 60 to 80 years ago.Web
How 'hot' material ended up in a Houston scrap yard. As the detector buzzed Oct. 16, the Houston officer first suspected a false alarm. He circled his car back around to the same street. It went ...Web
Because of its dispersibility, solubility, penetrating radiation, source activity, and presence across the United States in facilities such as hospitals, blood banks, and universities, many of which are located in large population centers, radioactive cesium chloride is a greater concern than other Category 1 and 2 sources for some attack ...Web
Removing cesium: Solutions to a chemically complex problem. Safe and effective ways to process the Hanford Site's radioactive tank waste, especially to …Web
An official in South Korea measures radiation levels of a fish imported from Japan. A fish has been caught near the Fukushima nuclear plant that far exceeds legal levels of radioactive cesium-137.Web
We investigated the internal contamination by radioactive cesium associated with the FDNPP accident, in the testes or uterus and ovaries of free-roaming cats (Felis silvestris catus), which were protected by volunteers in the Namie Town, Fukushima. A total of 253 samples (145 testes and 108 uterus and ovaries) obtained …Web
3. Cesium. Stable (non-radioactive) cesium (133-Cs) is an alkali metal, water-soluble, which exists naturally at very low concentrations in the soil as the Cs+ ion …Web
Regulators have ignored warnings that the licensing of devices containing radioactive cesium-137 should stop, and hundreds remain in use, an L.A. Times investigation has found.Web
The element of interest within the Goiânia tragedy primarily focuses on the radioactive isotope Cesium-137 (Cs-137). Originating from uranium-234 or plutonium-239, Cs-137 is an unintended byproduct of the material through nuclear fission. ... Heavy machinery to remove large amounts of soil was also used to remove any possible traces …Web
The European environment received a large pulse of radioactive cesium contamination following the Chernobyl power plant accident 37 years ago, mostly from cesium-137. And while cesium-137 levels ...Web
Radioactive cesium, a byproduct of nuclear weapons explosions and nuclear energy production, poses risks to public health when it enters the environment. And the environment across Europe got a large pulse of radioactive cesium contamination following the Chernobyl power plant accident 37 years ago. Most of that radioactivity …Web
One of the major by-products of the nuclear fission process used for power generation is 137 Cs (an isotope of cesium), a radioactive element that has a half-life of 30 years and is often removed ...Web
Radioactive cesium (RCs) isotopes 134 Cs and 137 Cs, which can be incorporated into the food chain, becoming a threat to human health 1, are two of the major radionuclides released by the accident ...Web
The results showed that while a total of about 90% of the cesium-137 in Central Europe comes from Chernobyl, the proportion in the wild boar samples is much lower. Instead, a large proportion of the cesium in wild boar meat is attributable to nuclear weapons testing – up to 68% in some samples. The deer truffle is (probably) to blameWeb
Cesium Sources. Cesium-137 is used in small amounts for calibration of radiation detection equipment, such as Geiger-Mueller counters. In larger amounts, Cs …Web
form of ionizing radiation that can pass through the human body, delivering doses to internal tissue and organs. People may also be exposed internally if they swallow or inhale cesium-137. Large amounts of cesium-137 were produced during atmospheric nuclear weapons tests conducted in the 1950s and 1960s. As a result of atmospheric testing andWeb
A cesium-boosted radiological dispersal device (RDD) would be devastating. "Any type of RDD which includes cesium-137 could cause immediate casualties from the blast, as well as widespread panic ...Web
Such a large movement and cycling of radiocesium in the ecosystem can be said to be a characteristic of forest ecosystems that is not found in agricultural land ... (non-radioactive) cesium-133 (133 Cs) is originally found in the earth's crust and soil in small amounts (a few μg in 1 g of soil ). Cesium is chemically similar to potassium ...Web
This process can be enhanced by the ability of large mammals to cover long distances (tens of kilometers) in search of food, mates, or during dispersal of individuals to new …Web
For measuring radioactive cesium transfer from the various sawdust media to the fruiting bodies, the standard sawdust medium and three kinds of media in which the sawdust of the standard sawdust media was replaced with TS, FH, and FS were prepared. ... The large dotted line represents the dry fruiting body weights for sPB, y = −0.02x + …Web
Radioactive materials including 137Cs (cesium-137, half-life: 30.1 years) were released into the environment following the accident at Fukushima Daiichi Nuclear Power Plant. It has been about 10 ...Web
According to results of a nationwide inspection of radioactive materials in foods published on the MHLW website, the detection rate of r-Cs in all commercially-available foods was 0.54% in fiscal 2017 17), 0.49% in fiscal 2018 18), and 0.42% in fiscal 2019 19). These were lower than one-tenth the values observed in the present survey.Web
In particular, the cesium particles are classified into two types [ 20 ]. Type A has a small size ( 1 ∼ 10 μ m) with a large 134 C s / 137 C s ratio ( ∼ 1.04), and Type B is large ( 70 …Web
2. Stable and radioactive cesium in the environment. Cesium occurs naturally in soil and water as stable isotope derived from soil minerals. Radioactive …Web
Exposure to large amounts of Cesium-137 can cause burns, acute radiation sickness, and even death. Exposure to high-energy gamma radiation can increase the risk of cancer. The radioactive cylinder, …Web
Particles containing radioactive cesium (134+137Cs) were released from the damaged reactors at the Fukushima Daiichi Nuclear Power Plant (FDNPP) during the 2011 nuclear disaster. Small (micrometer ...Web
Peak radioactive cesium levels in boar tissues are predicted to occur in winter and early spring, probably due to increased reliance on food sources prone to …Web
We investigated the internal contamination by radioactive cesium associated with the FDNPP accident, in the testes or uterus and ovaries of free-roaming cats (Felis silvestris catus), which were protected by volunteers in the Namie Town, Fukushima.A total of 253 samples (145 testes and 108 uterus and ovaries) obtained from adult cats and 15 fetuses …Web
Credit: FDNPP. A large quantity of radioactivity was released into the environment during the 2011 Fukushima Daiichi Nuclear Power Plant accident. The released radioactivity included small, poorly ...Web
effects. Laboratory animals given very large amounts of cesium compounds showed changes in behavior, such as increased or decreased activity. Exposure to large amounts of radioactive cesium can damage cells in your body from the radiation. You might also experience acute radiation syndrome, which includes nausea,Web
The large amounts of radioactive material that were released caused radioactive contamination throughout the Fukushima prefecture and surrounding areas. On 12 March 2011, evacuation orders were issued within a 20-km radius of FNPP. ... Radioactive cesium taken into the animal body is discharged to the outside of the body …Web
Immediately after the accident, a large amount of radioactive cesium fallout entered and exited the atmosphere, and the tendency of the observation value to decrease over time was similar to the change in our study results. The 134 Cs/ 137 Cs ratios in the North Pacific section were 0.13–0.80 (average 0.38 ± 0.03, n = 9) in 2012, ...Web
The miniaturization and usability of radiation detectors make it increasingly possible to use mobile instruments to detect and monitor gamma radiations. Here, a Bluetooth-based mobile detection system for integrated interaction in a backpack was designed and implemented to smart equipment for the detection of radioactive cesium …Web
Cesium-137 presents both external and internal health hazards. Barium-137m, which is produced by Cesium-137 radioactive decay, emits strong gamma radiation. This strong gamma radiation makes external exposure a concern, and shielding is needed to handle materials containing large concentrations of Cs-137.Web
External exposure to large amounts of Cs-137 can cause burns, acute radiation sickness and even death. Exposure to such a large amount could come from the mishandling of a strong industrial source of Cs-137, a nuclear detonation or a major nuclear accident. Large amounts of Cs-137 are not found in the …
The U.S. government developed a list of 16 radionuclides 7 of greatest concern for use in an RDD. Of these 16 radioisotopes, the 5 most common account for 99 percent of all sealed Category 1 and Category 2 sources in the United States. These five are cobalt-60, cesium-137, iridium-192, americium-241, and selenium-75.Web
Shaggy-haired, tusked pigs roam free in the woods of Germany and Austria. Although these game animals look fine, some contain radioactive cesium at levels that render their meat unsafe to eat.Web
