| http://www.w3.org/ns/prov#value | - An excerpt from the report explains that this is a known issue in the oil and gas industry:Naturally occurring radioactive elements such as uranium, radium, and radon are dissolved in very low concentrations during normal reactions between water and rock or soil. ...Some of this saline, radium-bearing water is unavoidably brought to the Earth???s surface with the oil and must be separated and then
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