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Challenges of Detecting Lead in Drinking Water Using at-Home Test Kits

机译：使用家庭试剂盒检测饮用水铅的挑战

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摘要

Lead in drinking water remains a significant human health risk. At-home lead in water test kits could provide consumers with a convenient and affordable option to evaluate this risk, but their accuracy and reliability is uncertain. This study examined the ability of at-home lead test kits to detect varying concentrations of dissolved and paniculate lead in drinking water. Sixteen brands representing four test kit types (binary color, binary strip, colorimetric vial, and color strip) were identified. Most kits (12 of 16 brands) were not suitable for drinking water analysis, with lead detection limits of 5-20 mg/L. Binary strips detected dissolved lead at drinking water-relevant levels but failed to detect particulate lead- Household acids (lemon juice and vinegar) improved the strip's ability to detect lead by dissolving some of the lead particulates to the point soluble lead exceeded 15 μg/L. These results illustrate the applications of at-home testing kits for drinking water analysis, highlight limitations and areas for possible improvement, and put forth a testing protocol by which new at-home lead test kits can be judged.
机译：饮用水铅仍然是一个重要的人类健康风险。在水上测试套件中的家庭铅可以为消费者提供方便而实惠的选择来评估这种风险，但它们的准确性和可靠性是不确定的。本研究检测了家庭铅测试试剂盒检测饮用水中不同浓度浓度的溶解和铅的能力。鉴定了十六个品牌，代表四种测试套件类型（二进制颜色，二进制条带，比例小瓶和颜色条带）。大多数套件（16个品牌中的12个）不适合饮用水分析，铅检测限为5-20 mg / L.在饮用水相关水平下检测到溶解铅的二元条带，但未能检测颗粒状物质酸（柠檬汁和醋）改善了通过将一些铅颗粒溶解于点可溶性引线来检测铅检测铅的能力超过15μg/ L. 。这些结果说明了家庭测试试剂盒用于饮用水分析，突出局限和可能改进的区域的应用，并提出了可以判断新型铅测试套件的测试协议。

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  • 来源
    《Environmental Science & Technology》 |2021年第3期|1964-1972|共9页
  • 作者

    Rebecca Kriss; Kelsey J. Pieper; Jeffrey Parks; Marc A. Edwards;

  • 作者单位

    Civil and Environmental Engineering Virginia Tech Blacksburg Virginia 24061 United States;

    Civil and Environmental Engineering Northeastern University Boston Massachusetts 02115 United States;

    Civil and Environmental Engineering Virginia Tech Blacksburg Virginia 24061 United States;

    Civil and Environmental Engineering Virginia Tech Blacksburg Virginia 24061 United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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