SRIC: Uranium-Related Documents

SRIC: Uranium-Related Documents. MISSION: Southwest Research and Information Center is a multi-cultural organization working to promote the health of people and communities, protect natural resources, ensure citizen participation, and secure environmental and social justice now and for future generations. Uranium-Related Documents on File.

Uranium: Where Is It?

Uranium is easily oxidized and forms a number of common uranium oxides and oxy-hydroxide like uraninite (or pitchblende) and schoepite (including meta- and para-). Table 1: Average uranium concentrations in ores, rocks and waters (ppm - parts per million).

Uranium – A-Cap Energy

During the 2017-year, A-Cap sent 296 samples for acid soluble uranium (ASU) analysis to ANSTO laboratories at Lucas Heights, NSW. The test design was aimed at addressing possible correlations with acid consumption and hence samples were carefully selected to represent lithological, spatial and mineralogical parameters.

Uranium Fact Sheet

The average concentration of uranium in the groundwater of the United States is about 0.07 Bq L-1.The US Environmental Protection Agency''s (EPA) drinking-water standard for uranium is 30 micrograms per liter (μg L-1), Uranium concentrations can vary ...

Chinese scientists have created a new material to extract uranium …

 · However, there are very low concentrations of uranium in seawater – estimated at 3.3 micrograms per litre – making it far more difficult and expensive to extract from the oceans than to …

Uranium

Extreme concentrations (up to a factor of 100 times the typical ranges noted) may be found in certain geologic environments or where uranium has been concentrated, such as mine tailings. Uranium concentrations in surface and ground waters, as well as many bottled mineral waters, commonly exceed current drinking water standards.

Uranium mining

Uranium mining is the process of extraction of uranium ore from the ground. The worldwide production of uranium in 2019 amounted to 53,656 tonnes.Kazakhstan, Canada, and Australia were the top three uranium producers, respectively, and together account for 68% of world production. ...

Uranium, Explained – Global X ETFs

 · Uranium is found in most rocks in concentrations of two to four parts per million and is as common in the Earth''s crust as other metals such as tin and tungsten. 3 Uranium is generally recovered from the ground using open-pit mining, underground mining, or in 4

Uranium and thorium | Geoscience Australia

Uranium and thorium are common elements in the Earth''s crust. They can be found in low concentrations almost everywhere in rock, soil, rivers, and oceans. The Australian continent, through its geological heritage, is endowed with well-above-average

Issues at Operating Uranium Mines and Mills

Increase of uranium concentrations in snow on East Antarctic Plateau attributed to uranium mining in Australia This study presents the Uranium concentrations time series from 1964 to 2009 obtained from a 3 m deep snow pit at Dome Argus, East Antarctic Plateau.

Uranium Mining and Extraction from Ore

Uranium Extraction Uranium leaching is the process by which the uranium is extracted from the raw ore by reacting the material with acid or base. Fig. 2 shows a general process flow for the uranium extraction process. Prior to the leaching process, the ore is ...

Basin Uranium Corp. – Athabasca Basin Uranium Exploration

 · World Leaders in Uranium Mining Economically-viable concentrations for production occur throughout numerous continents in the world, with Kazakhstan accounting for 42% of global production, followed by Canada at 13%, and Australia accounting for 12%.

Uranium in 2021: A Guide to The Commodity''s Price, Value, and Uses

 · Uranium ores typically have very low yields of the element of between 0.1 to 0.2%, and some have concentrations lower than 0.05%. The Canadian Saskatchewan mines are the exception and have yields of more than 20% uranium. However, flooding and environmental concerns make the future of mining in this region uncertain.

Uranium Toxicity: What Are the Routes of Exposure for Uranium…

In areas where uranium enrichment processes occur, atmospheric concentrations of uranium have been measured at 200 times higher than normal background levels. Mining activities can increase air concentrations of uranium, exposing mine workers to elevated levels of uranium.

Uranium exposure and health risk implications: A preliminary study among the residents living around uranium mining …

 · Uranium concentrations in cow milk from the U-mining area were as high as 3.62 μg/L with a median value of 0.75 μg/L (Haakonde et al., 2021) (). The Mann-Whitney U test showed that the milk samples from cattle reared in the U mining area had significantly ( p < 0.05) higher levels of U than in milk from cattle reared in the non-mining area.

Elevated Arsenic and Uranium Concentrations in Unregulated …

 · Results indicated that arsenic and uranium concentrations exceeded national drinking water standards in 15.1 % (arsenic) and 12.8 % (uranium) of tested water sources. Unregulated sources in close proximity (i.e., within 6 km) to abandoned uranium mines yielded significantly higher concentrations of arsenic or uranium than more distant sources.

Investigation of in situ leach (ISL) mining of uranium in New Mexico and post-mining reclamation

Investigation of in situ leach (ISL) mining of uranium in New Mexico and post-mining reclamation Introduction New Mexico has played a major role in the production of uranium (U) for the nuclear power industry and the nation''s weapons programs, producing more 3

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1 - Governing Uranium. U ranium is a common element, found in the Earth''s crust in concentrations ranging from upwards of 20 per cent uranium or 200,000 parts per million (ppm) in very high-grade ore such as that found in Canada''s Athabasca Basin, to 0.01% (100 ppmU) in very low grade ore such as that found in Namibia and 0.003 ppmU found ...

Population monitoring: experience with residents exposed to uranium mining…

The study included 24 target and 24 control residents who were matched for age and gender and selected based on time of residence in the study areas and proximity to mining/milling sites. Environmental samples were analyzed for uranium-238 (238U) concentrations and lead isotope ratios using inductively coupled plasma-mass spectrometry (ICP-MS ...

Uranium in natural waters sampled within former uranium mining …

 · New data are presented on 238U concentrations in surface and ground waters sampled at selected uranium mining sites in Kazakhstan and Kyrgyzstan and in water supplies of settlements located in the vicinity of these sites. Radiochemical neutron activation analysis (RNAA) was used for 238U determination in all cases. In addition, for data accuracy assessments purposes, a sub-set of …

Uranium Supplies: Supply of Uranium

Supply of Uranium. (Updated September 2021) Uranium is a relatively common metal, found in rocks and seawater. Economic concentrations of it are not uncommon. Quantities of mineral resources are greater than commonly perceived, and are relative …

Uranium | Geoscience Australia

Uranium. Uranium (U) is a radioactive element that averages one to four parts per million in the Earth''s crust. Natural uranium contains about 0.7% of the U 235 isotope (the fissile isotope) and 99.2%of the U 238 isotope. Concentrations of uranium minerals such as uraninite, carnotite and brannerite can form commercial deposits.

Uranium Mining Overview

Uranium. Uranium (U) is a radioactive element that averages one to four parts per million in the Earth''s crust. Natural uranium contains about 0.7% of the U 235 isotope (the fissile isotope) and 99.2%of the U 238 isotope. Concentrations of uranium minerals such as uraninite, carnotite and brannerite can form commercial deposits.

Uranium and thorium | Geoscience Australia

Uranium Extraction Uranium leaching is the process by which the uranium is extracted from the raw ore by reacting the material with acid or base. Fig. 2 shows a general process flow for the uranium extraction process. Prior to the leaching process, the ore is ...

MettaInsights: Uranium | Mettalex

 · Uranium has the highest atomic weight (19 kg m) of all naturally occurring elements. (1) Uranium occurs naturally in low concentrations in soil, rock and water, and is commercially extracted from uranium-bearing minerals such as uraninite. Uranium ore can be

Health Impacts for Uranium Mine and Mill Residents

In Eastern Siberia, tailings sands from a uranium mine at Baley (Chita region) were used for the construction of apartment buildings and kindergardens. Radon concentrations in these buildings exceed the 200 Bq/m 3 standard up to 37-fold.

Nuclear4Malaysia: URANIUM MINING

 · URANIUM MINING. Uranium mining is the process of extraction of uranium ore from the ground. As uranium ore is mostly present at relatively low concentrations, most uranium mining is very volume-intensive, and thus tends to be undertaken as open-pit mining. It is also undertaken in only a small number of countries of the world, partly because ...

Radionuclide Basics: Uranium | US EPA

 · Radionuclide Basics: Uranium. Uranium (chemical symbol U) is a naturally occurring radioactive element. When refined, uranium is a silvery-white metal. Uranium has three primary naturally occurring. isotopes A form of an element that has the same number of protons but a different number of neutrons in the nucleus, giving it a different atomic ...