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Author (up) Külls, C.
Title Demonstration des Potentials der Nitrat-Isotopenanalytik für die Strategieentwicklung der Sanierung Nitrat-belasteter Brunnen Type Report
Year 2004 Publication Umweltbundesamt Abbreviated Journal
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Abstract Demonstration des Potentials der Nitrat-Isotopenanalytik für die Strategieentwicklung der Sanierung Nitrat-belasteter Brunnen
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Call Number THL @ christoph.kuells @ Serial 75
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Author (up) Orloff, K.G.; Mistry, K.; Charp, P.; Metcalf, S.; Marino, R.; Shelly, T.; Melaro, E.; Donohoe, A.M.; Jones, R.L.
Title Human exposure to uranium in groundwater Type Journal Article
Year 2004 Publication Environmental Research Abbreviated Journal
Volume 94 Issue 3 Pages 319-326
Keywords Groundwater, Human exposure, Uranium, Urine
Abstract High concentrations of uranium (mean=620μg/L) were detected in water samples collected from private wells in a residential community. Based on isotopic analyses, the source of the uranium contamination appeared to be from naturally occurring geological deposits. In homes where well water concentrations of uranium exceeded the drinking water standard, the residents were advised to use an alternate water source for potable purposes. Several months after the residents had stopped drinking the water, urine samples were collected and tested for uranium. Elevated concentrations of uranium (mean=0.40μg/g creatinine) were detected in urine samples, and 85 percent of the urine uranium concentrations exceeded the 95th percentile concentration of a national reference population. Urine uranium concentrations were positively correlated with water uranium concentrations, but not with the participants’ ages or how long they had been drinking the water. Six months later, a second urine sample was collected and tested for uranium. Urine uranium concentrations decreased in most (63 percent) of the people. In those people with the highest initial urine uranium concentrations, the urine levels decreased an average of 78 percent. However, urine uranium concentrations remained elevated (mean=0.27μg/g), and 87 percent of the urine uranium concentrations exceeded the 95th percentile concentration of the reference population. The results of this investigation demonstrated that after long-term ingestion of uranium in drinking water, elevated concentrations of uranium in urine could be detected up to 10 months after exposure had stopped.
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ISSN 0013-9351 ISBN Medium
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Notes Approved no
Call Number THL @ christoph.kuells @ orloff_human_2004 Serial 136
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Author (up) Tröger, U.; Dias, C.L.; Guillaumon, J.R.; Iritani, M.A.; Külls, C.; Schuler, G.
Title Remarks and new data about the recharge of the Guarani Aquifer System Type Conference Article
Year 2004 Publication XXXIII IAH Congress, Abstracts, IAH, Mexico Abbreviated Journal
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Call Number THL @ christoph.kuells @ Troeger2004remarks Serial 59
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