Sentences with phrase «radioactive material from»

The reactor is designed to never be opened on site and thus there is little opportunity for diversion of radioactive material from operating plants.

U.S. scientists are also currently working to determine whether radioactive material from the plant has reached the kelp beds off the California coast.

Further complicating this option, there was an accidental release of radioactive material from WIPP in February.

In 2010, the Obama administration abandoned a 2 - decade effort to bury much of the high level waste — spent fuel rods from commercial reactors and radioactive material from nuclear bomb manufacturing — inside Yucca Mountain in the Nevada desert (although Congress has ordered parts of that process to keep moving).

Scientists have found a previously unsuspected place where radioactive material from the Fukushima Dai - ichi nuclear power plant disaster has accumulated — in sands and brackish groundwater beneath beaches up to 60 miles away.

These plans are designed to be safe based on physical and chemical barriers that will stop radioactive material from escaping for hundreds of thousands of years.

'' [A] nuclear waste repository should not be built until it can be shown, beyond the shadow of a doubt, that the facility can, in fact, do what its advocates claim - isolate radioactive materials from the biosphere for more than 10,000 years - and that construction of such a repository will be benign in its effects upon the people, the environment and the economy of the state or region within which it would be located.

This included fracking wastewater that state officials had allowed to be dumped at local sewer plants — facilities incapable of removing the complex mix of chemicals, corrosive salts, and radioactive materials from that kind of industrial waste before they piped the «treated» water back into Pennsylvania's rivers.

According to NRC officials, the amount of radioactive materials from underground piping system leaks has been small relative to these permitted discharges.

Japan's Nuclear Safety Agency has claimed that the release of radioactive materials from Fukushima was equal to 10 % of those from Chernobyl.

Not exact matches

This material almost immediately decayed into lighter elements, leading to a bright, radioactive «kilonova» astronomers could see some 85 million to 160 million light - years away from Earth.

A dirty bomb, or a bomb that propels radioactive materials in the air with help from a conventional explosive charge, requires radioactive material that can only be obtained via license from the Nuclear Regulatory Commission (NRC).

«You actually get more exposure from the Earth's natural radioactive material than from galactic cosmic rays.»

«The other possibility there is that Uber realized that Mr. Levandowski was radioactive... and came up with some series of agreements that somehow would insulate Uber from any of that material ever being used at Uber,» Judge William Alsup said.

Investors felt the biggest shock waves when Japan's prime minister announced that radioactive material had leaked from the Fukushima Dai - ichi nuclear plant in Fukushima province and that more leaks were possible.

(feeding may resume once radioactive material is cleared from the milk)

Breastfeeding is contraindicated in infants with classic galactosemia (galactose 1 - phosphate uridyltransferase deficiency) 103; mothers who have active untreated tuberculosis disease or are human T - cell lymphotropic virus type I — or II — positive104, 105; mothers who are receiving diagnostic or therapeutic radioactive isotopes or have had exposure to radioactive materials (for as long as there is radioactivity in the milk) 106 — 108; mothers who are receiving antimetabolites or chemotherapeutic agents or a small number of other medications until they clear the milk109, 110; mothers who are using drugs of abuse («street drugs»); and mothers who have herpes simplex lesions on a breast (infant may feed from other breast if clear of lesions).

It is necessary to pump and dump after this test until all radioactive materials have been eliminated from your body.

Entergy will also move a set yearly number of spent fuel rods from their dangerous storage pools to dry cask storage on site — a much safer solution for this radioactive material.

In a new study, Scripps Institution of Oceanography at the University of California San Diego Professor James Day and colleagues examined the chemical composition of zinc and other volatile elements contained in the green - colored glass, called trinitite, which were radioactive materials formed under the extreme temperatures that resulted from the 1945 plutonium bomb explosion.

Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors.

Now researchers from the University of Maryland have proposed a new technique to remotely detect the radioactive materials in dirty bombs or other sources.

The gamma rays strip electrons from the molecules in the surrounding air, and the resulting free electrons lose energy and readily attach to oxygen molecules to create elevated levels of negatively charged oxygen ions around the radioactive materials.

Strict federal regulation governs the handling of irradiated materials, from core components to PC boards, which can turn radioactive from particle bombardment.

They calculate that a low - power laser aimed near the radioactive material could free electrons from the oxygen ions.

The new method, published in Scientific Reports, could dramatically reduce the effective half - life (an indicator of the amount of time it takes to bring radioactive materials down to safe levels) of long - lived fission products [1](LLFPs) from hundreds of thousands of years to within a hundred years.

Six years after the Fukushima nuclear reactor disaster in Japan, radioactive material is leaching into the Pacific Ocean from an unexpected place.

«It was nowhere near as complex of a release as Chernobyl, which was everything from the core of the reactor,» says Peter Caracappa, a radiation safety officer and clinical assistant professor of nuclear engineering at Rensselaer Polytechnic Institute in Troy, N.Y. «This was a slow release,» he adds, and it was limited to a few radioactive materials, including iodine 131, which has a half - life of just eight days and therefore does not lead to long - term contamination.

Cell phones use non-ionizing radiation, which differs from the ionizing radiation of x-rays and radioactive material in that it does not have enough energy to knock around — or ionize — electrons or particles in atoms.

The pattern of prevailing winds during the accident meant that most of the radioactive materials released from the plant were blown out to sea.

With the help of this newly - developed detection device, the detection of various types of radioactive materials can be done from a remote distance.

«With the existing technologies, remote detection of radioactive materials is impossible when the measurement location is far from the radioactive source,» says Dongsung Kim (Combined M.S. / Ph.D. student of Physics), the first author of the study.

Remote detection of radioactive materials is impossible when the measurement location is far from its source.

This component is only mildly radioactive and, if separated from the fission products and the rest of the material in the spent fuel, could readily be stored safely for future use in lightly protected facilities.

The prevailing winds are indeed heading east over the Pacific from Japan, but the vast majority of radioactive material will rain down into the ocean within a few hundred kilometers of the nuclear plant.

This is potentially more worrying than the venting of contaminated gases from reactors 1, 2 and 3, as the fire released radioactive material straight into the atmosphere.

Unless a large explosion sends radioactive material high into the atmosphere, most of the fallout from Japan will not make it across the Pacific Ocean.

Highly packed spent fuel pools at the Japanese facility have caught fire, lost coolant, and released unknown quantities of radioactive material, underscoring the need to remove as much fuel from overcrowded pools as possible.

Based on building materials used in the Arctic at the time, the authors speculate the site contains polychlorinated biphenyls (PCBs), pollutants toxic to human health, along with an unknown volume of low - level radioactive coolant from the nuclear generator.

Solid waste from horizontal gas wells contains radioactive material that ends up in landfills.

The study found that some well waste from the Marcellus shale in Pennsylvania contained radioactive material not previously reported, with the potential for leaching from landfills into the environment.

This raised the original rating from level 5 and puts the Fukushima Daiichi disaster technically in the same category as Chernobyl, although the quantity of discharged radioactive materials in Japan so far is about 10 percent of what was released by the Chernobyl reactor explosion, considered history's worst nuclear accident.

The new study revealed a previously unsuspected pathway for radioactive material to be transported, stored for years, and subsequently released far from the site where it was initially discharged.

In the typical scenario, a group of terrorists steal a few ounces of radioactive material like cobalt 60 from a food irradiation facility.

The returning mixture, which contains radioactive materials and some of the natural gas from the geological formation, is supposed to be captured.

The knowledge gained from such research could inform the design, selection, and improvement of adsorbent materials and membranes for capturing gases such as radioactive krypton and xenon generated by nuclear power plants.

The radiation might not come from radioactive materials on the planet itself, but rather from galactic cosmic rays (GCRs)-- high - energy particles that careen through the universe after being flung out of a supernova.

From samples of seawater, Jota Kanda of Tokyo University of Marine Science and Technology estimated last year that about 0.3 terabecquerels (TBq) of radioactive material are leaking into the sea each month.

That material includes everything from buildings and railways, to tanks of diesel fuel, radioactive coolant, and likely an unknown amount of toxic polychlorinated biphenyls (PCBs).

They would also be at risk if they somehow swallowed or breathed fumes from the radioactive wastewater, or handled the concentrated materials regularly for 20 years.