Seghour A, Seghour F Z
Centre de Recherche Nucléaire d'Alger, Commissariat à l'Energie Atomique, 02 Bd Frantz Fanon, BP 399, 16000 Alger-RB, Algiers, Algeria.
Radiat Prot Dosimetry. 2009 Jan;133(1):50-7. doi: 10.1093/rpd/ncp009. Epub 2009 Feb 16.
Concentrations of (226)Ra, (228)Ra and (40)K in the five most popular Algerian bottled mineral waters have been found to be 13.9 to 148.9 mBq l(-1), 7.2 to 52.9 mBq l(-1) and <0.07 to 2.19 Bq l(-1), respectively. Ratios of (226)Ra to (228)Ra activities ranged from 1.0 to 13.66 with a mean of 5.62. The annual effective doses due to ingestion of these waters have been estimated for three age categories (infants, children and adults) using the measured activities of these radionuclides and assuming the World Health Organisation's default water intake rate. Annual doses for children and adults have been found to be well below the 0.1 mSv y(-1) reference dose level, whereas for the most vulnerable group the annual effective dose from all the waters exceeds the reference value and contributes 12% to the mean annual dose from natural exposure.
已发现阿尔及利亚最受欢迎的五种瓶装矿泉水中镭 - 226、镭 - 228和钾 - 40的浓度分别为13.9至148.9毫贝克勒尔/升、7.2至52.9毫贝克勒尔/升和小于0.07至2.19贝克勒尔/升。镭 - 226与镭 - 228活度的比值在1.0至13.66之间，平均值为5.62。利用这些放射性核素的测量活度，并假设世界卫生组织的默认水摄入量，估算了三个年龄组（婴儿、儿童和成人）因摄入这些水而产生的年有效剂量。已发现儿童和成人的年剂量远低于0.1毫希沃特/年的参考剂量水平，而对于最脆弱的群体，所有这些水的年有效剂量超过了参考值，占自然暴露年平均剂量的12%。
