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Evaluation of an Arsenic Test Kit for Rapid Well Screening in Bangladesh

机译：孟加拉国快速测井用砷测试试剂盒的评估

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摘要

Exposure to arsenic in groundwater via drinking remains unabated for millions of villagers in Bangladesh. Since a blanket testing campaign using test kits almost a decade ago, millions of new wells have been installed but not tested; thus affordable testing is needed. The performance of the Arsenic Econo-Quick (EQ) kit was evaluated by blindly testing 123 wells in Bangladesh and comparing with laboratory measurements; 65 wells were tested twice. A subset of the same 123 wells was also tested using the Hach EZ kit in the field and the Digital Arsenator in the laboratory in Bangladesh. The EQ kit correctly determined the status of 110 (89%) and 113 (92%) out of 123 wells relative to the WHO guideline (10 μg/L) and the Bangladesh standard (SO μg/L), respectively. Relative to the WHO guideline, all misclassifications were underestimates for wells containing between >10 and 27 μg/L As. Relative to the Bangladesh As standard, over- and underestimates were evenly distributed. Given its short reaction time of 10 min relative to the Hach EZ and its lower cost compared to the Arsenator, the EQ kit appears to have several advantages for well testing in Bangladesh and elsewhere.
机译：对于孟加拉国数百万的村民来说，通过饮酒暴露于地下水中的砷仍然没有减弱。自从大约十年前使用测试套件进行全面测试以来，已经安装了数百万口新井，但尚未进行测试；因此需要负担得起的测试。通过盲目测试孟加拉国的123口井并与实验室测量值进行比较，评估了Arsenic Econo-Quick（EQ）试剂盒的性能。测试了65口井两次。还使用现场的Hach EZ试剂盒和孟加拉国实验室的Digital Arsenator测试了123口井中的一部分。相对于WHO准则（10μg/ L）和孟加拉国标准（SOμg/ L），EQ试剂盒正确地确定了123口井中110口（89％）和113口（92％）的状态。相对于WHO指南，所有AsAs含量> 10至27μg/ L的孔的分类错误均被低估了。相对于孟加拉国作为标准，高估和低估平均分配。相对于Hach EZ，它的反应时间短，只有10分钟，而且与Arsenator相比，其成本较低，因此EQ试剂盒在孟加拉国和其他地区的试井中似乎具有多个优势。

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  • 来源
    《Environmental Science & Technology》 |2012年第20期|p.11213-11219|共7页
  • 作者

    Christine Marie George; Yan Zheng; Joseph H. Graziano; Shahriar Bin Rasul; Zakir Hossain; Jacob L. Mey; Alexander van Geen;

  • 作者单位

    Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, United States;

    UNICEF Bangladesh, Dhaka, Bangladesh,Queens College, City University of New York, Flushing, New York 11367 and Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, United States;

    Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States;

    Participatory Management Initiative for Development (PMID), Dhaka, Bangladesh;

    Columbia University Arsenic & Health Research in Bangladesh, Dhaka, Bangladesh;

    Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, United States;

    Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, 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);
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