Evaluation of tritium, gross alpha and gross beta radioactivity levels in tap and bottled drinking water in Singapore

IF 1.5 3区 化学 Q3 CHEMISTRY, ANALYTICAL
Jun Xiang Ong, Jonathan Zheng Ing Kok, Ken Kah Meng Lee, Kern Rei Chng, Yuansheng Wu, Joanne Sheot Harn Chan
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Abstract

With the aim of assessing the radiological impact on public health from water consumption, tritium and gross α-β radioactivity levels were determined in tap and bottled drinking water consumed in Singapore using ultra-low level liquid scintillation counting. Tritium and gross α activities were < MDA values, while gross β activity levels varied between 0.228 and 0.258 Bq/L in tap water samples. For bottled drinking water, the activity concentrations of tritium, gross α and gross β ranged from < MDA–1.59 Bq/L, < MDA–0.437 Bq/L and < MDA–1.33 Bq/L respectively. The annual total effective doses were also estimated for both children and adults due to intake of radionuclides from consumption of tap and bottled water. Our results showed that consumption of tap and bottled water presents insignificant radiological risk to the Singapore population.

Abstract Image

新加坡自来水和瓶装饮用水中的氚、总阿尔法和总贝塔放射性水平评估
为了评估饮用自来水对公众健康的辐射影响,我们使用超低液位闪烁计数法测定了新加坡自来水和瓶装饮用水中的氚和总α-β放射性水平。自来水样本中的氚和总α放射性活度为 MDA 值,而总β放射性活度水平在 0.228 和 0.258 Bq/L 之间。瓶装饮用水的氚、总α和总β活性浓度分别为 < MDA-1.59 Bq/L、 < MDA-0.437 Bq/L 和 < MDA-1.33 Bq/L。我们还估算了儿童和成人因饮用自来水和瓶装水而摄入放射性核素的年总有效剂量。我们的研究结果表明,饮用自来水和瓶装水对新加坡人口造成的辐射风险很小。
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来源期刊
CiteScore
2.80
自引率
18.80%
发文量
504
审稿时长
2.2 months
期刊介绍: An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.
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