Evaluation of an arsenic test kit for rapid well screening in Bangladesh.
Evaluation of an arsenic test kit for rapid well screening in Bangladesh.
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DOI:
10.1021/es300253p
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发表时间:
2012-10-16
影响因子:
11.4
通讯作者:
van Geen, Alexander
中科院分区:
文献类型:
--
作者:
George, Christine Marie;Zheng, Yan;Graziano, Joseph H.;Bin Rasul, Shahriar;Hossain, Zakir;Mey, Jacob L.;van Geen, Alexander
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 (50 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 under-estimates 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.
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DOI:
10.1186/1476-069x-11-7
发表时间:
2012-02-21
期刊:
Environmental health : a global access science source
影响因子:
--
作者:
George CM;Graziano JH;Mey JL;van Geen A
通讯作者:
van Geen A
影响因子:
11.4
作者:
Siegfried, Konrad;Endes, Carola;Harms, Hauke
通讯作者:
Harms, Hauke
影响因子:
10.4
作者:
Morales, KH;Ryan, L;Chen, CJ
通讯作者:
Chen, CJ
影响因子:
10.3
作者:
Marshall, Guillermo;Ferreccio, Catterina;Smith, Allan H.
通讯作者:
Smith, Allan H.
影响因子:
8.3
作者:
Calderón, J;Navarro, ME;Díaz-Barriga, F
通讯作者:
Díaz-Barriga, F