1. Estimation of human exposure to natural radionuclides by using in vivo skull measurements
- Author
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T. Haninger, Muikku M, Paul Roth, T. Rahola, Salonen L, Pusa S, W. Wahl, and D. Kucheida
- Subjects
Male ,Chronic exposure ,Water Pollutants, Radioactive ,Statistics as Topic ,Urine ,Radiation Dosage ,In vivo ,Humans ,Radiology, Nuclear Medicine and imaging ,Nuclide ,Child ,Radiometry ,Finland ,Radionuclide ,Radiation ,Radiological and Ultrasound Technology ,Chemistry ,business.industry ,Skull ,Radiochemistry ,Public Health, Environmental and Occupational Health ,Gamma ray ,Environmental Exposure ,Lead Radioisotopes ,General Medicine ,Natural uranium ,Human exposure ,Uranium ,Female ,Nuclear medicine ,business - Abstract
In a preliminary study, in vivo skull measurements and in vitro urine measurements of 210 Pb and nat U have been performed to find out the individual, chronic exposure to waterborne natural radionuclides of a small group of Finnish people. For their domestic water, the studied individuals use water from drilled wells containing elevated concentrations of natural uranium and its daughter nuclides ( 234,235,238 U, 222 Rn, 226,228 Ra, 210 Po, 210 Pb). Enhanced 210 Pb and 235 U activities were observed in several people. A positive correlation is observed between the U concentration in urine (μg d -1 ) and the number of counts (cpm) in the gamma ray energy peaks originating from the decay of 235 U and 234 Th respectively. Calibration of the detector setup and the determination of background sources are in progress.
- Published
- 2003
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