title: Radiation sources in natural gas well activities.
authors.affiliation: URS Corporation, Pittsburgh, PA, USA.
authors.forename: Gayle
authors.initials: G
authors.lastname: Nicoll
mesh_terms: D006801:Humans; D059206:Natural Gas / Q000706:statistics & numerical data*; D016273:Occupational Exposure / Q000032:analysis* / Q000706:statistics & numerical data; D061329:Oil and Gas Fields; D011827:Radiation; D011829:Radiation Dosage; D011834:Radiation Monitoring; D011848:Radioactive Pollutants / Q000032:analysis*
chemical_list: D059206:Natural Gas; D011848:Radioactive Pollutants