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A REVIEW OF NATURAL RADIONUCLIDES IN CANADIAN DRINKING WATER (1975-16)

机译:加拿大饮用水中天然放射性核素的综述(1975-16年)

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摘要

Historical results of natural radioactivity in drinking water were reviewed for a total of 21 communities across Canada from 1975 to 2016. Analyses for Ra-226, Pb-210 and total uranium were carried out on monthly composite samples of drinking water from selected Canadian municipalities. Generally speaking, levels of Ra-226, Pb-210 and total uranium were found to be low compared to national and international standards for drinking water quality. Because levels were low, federal monitoring programs were discontinued in most communities in 1986 except for Regina, Elliot Lake and Port Hope. The population-weighted average levels for these three communities, using data from the most recent 5 years, are 1 mBq/L for Ra-226, 5 mBq/L for Pb-210 and 0.4 mu g/L for total uranium. The average effective dose resulting from drinking water intake at these levels would be 4.3 mu Sv per year.
机译:回顾了1975年至2016年加拿大境内总共21个社区的饮用水中天然放射性的历史结果。对来自加拿大部分城市的饮用水的每月复合样品进行了Ra-226,Pb-210和总铀的分析。一般而言,与国家和国际饮用水水质标准相比,Ra-226,Pb-210和总铀的含量较低。由于水平较低,1986年大多数社区(除里贾纳,艾略特湖和希望港)都停止了联邦监测计划。使用最近5年的数据,这三个社区的人口加权平均水平分别为:Ra-226 <1 mBq / L,Pb-210 <5 mBq / L和总铀<0.4μg / L 。在这些水平上,因饮水而产生的平均有效剂量每年<4.3μSv。

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  • 来源
    《Radiation Protection Dosimetry》 |2018年第1期|26-36|共11页
  • 作者单位

    Hlth Canada, Radiat Protect Bur, 775 Brookfield Rd, Ottawa, ON, Canada;

    Hlth Canada, Radiat Protect Bur, 775 Brookfield Rd, Ottawa, ON, Canada;

    Hlth Canada, Radiat Protect Bur, 775 Brookfield Rd, Ottawa, ON, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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