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Real-Time Monitoring of Gross Beta Radioactivity in Tap Water and Committed Effective Dose

Lv, Wen-hui1,2; Zeng, Zhi1; Yi, Hongchang1; Ma, Hao1; Li, Jun-li1; Zhang, Hui1

doi: 10.1097/HP.0000000000000896
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To achieve real-time monitoring of gross beta radioactivity in drinking water, a scintillating fiber array system was developed. Using this system, the gross beta radioactivity in tap water at Tsinghua University campus in Beijing was monitored, and the same water samples were measured using the evaporation concentration method as a comparison experiment. Finally, the annual committed effective doses to children and adults who drank the tap water for a long time were estimated. The results showed that the gross beta radioactivity in tap water was 0.09 ± 0.03 Bq L−1 using the scintillating fiber array system and 0.076 ± 0.009 Bq L−1 using the evaporation concentration method. The annual committed effective dose values were less than the dose reference level of 0.1 mSv y−1, as suggested by the World Health Organization. The scintillating fiber array system can be used for measuring gross beta radioactivity in drinking water and protecting public health.

1Key Laboratory of Particle and Radiation Imaging (Ministry of Education) and Department of Engineering Physics, Tsinghua University, Beijing 100084, China;

2 Xi’an Research Institute of Hi-Tech, Xi’an 710025, China.

The authors declare no conflicts of interest.

For correspondence contact: Wen-hui Lv, Xi’an Research Institute of Hi-Tech, Xi’an 710025, China, or email at lvwenhui10@163.com.

(Manuscript accepted 25 March 2018)

© 2018 by the Health Physics Society