Determination of total tritium in urine from residents living in the vicinity of nuclear power plants in Qinshan, China

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Abstract

To estimate the tritium doses of the residents living in the vicinity of a nuclear power plant, urine samples of 34 adults were collected from residents living near the Qinshan nuclear power plant. The tritium-in-urine (HTO plus OBT) was measured by liquid scintillation counting. The doses of tritium-in-urine from participants living at 2, 10 and 22 km were in a range of 1.26–6.73 Bq/L, 1.31–3.09 Bq/L and 2.21–3.81 Bq/L, respectively, while the average activity concentrations of participants from the three groups were 3.53 ± 1.62, 2.09 ± 0.62 and 2.97 ± 0.78 Bq/L, respectively. The personal committed effective doses for males were 2.5 ± 1.7 nSv and for females they were 2.9 ± 1.3 nSv. These results indicate that tritium concentrations in urine samples from residents living at 2 km from a nuclear power plant are significantly higher than those at 10 km. It may be the downwind direction that caused a higher dose in participants living at 22 km. All the measured doses of tritium-in-urine are in a background level range.

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Shen, B. M., Ji, Y. Q., Tian, Q., Shao, X. Z., Yin, L. L., & Su, X. (2015). Determination of total tritium in urine from residents living in the vicinity of nuclear power plants in Qinshan, China. International Journal of Environmental Research and Public Health, 12(1), 888–894. https://doi.org/10.3390/ijerph120100888

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