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Drinking Water Engineering and Science An interactive open-access journal

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Drink. Water Eng. Sci., 2, 29-34, 2009
http://www.drink-water-eng-sci.net/2/29/2009/
doi:10.5194/dwes-2-29-2009
© Author(s) 2009. This work is distributed
under the Creative Commons Attribution 3.0 License.
 
30 Jun 2009
Arsenic in drinking water: a worldwide water quality concern for water supply companies
D. van Halem1,2, S. A. Bakker1, G. L. Amy1,2, and J. C. van Dijk1 1Delft University of Technology, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628 CN Delft, The Netherlands
2UNESCO-IHE, Westvest 7, 2611 AX Delft, The Netherlands
Abstract. For more than a decade it has been known that shallow tube wells in Bangladesh are frequently contaminated with arsenic concentrations at a level that is harmful to human health. By now it is clear that a disaster of an unheard magnitude is going on: the World Health Organization has estimated that long-term exposure to arsenic in groundwater, at concentrations over 500 μg L−1, causes death in 1 in 10 adults. Other studies show that problems with arsenic in groundwater/drinking water occur in many more countries worldwide, such as in the USA and China. In Europe the focus on arsenic problems is currently confined to countries with high arsenic levels in their groundwater, such as Serbia, Hungary and Italy. In most other European countries, the naturally occurring arsenic concentrations are mostly lower than the European drinking water standard of 10 μg L−1. However, from the literature review presented in this paper, it is concluded that at this level health risks cannot be excluded. As consumers in European countries expect the drinking water to be of impeccable quality, it is recommended that water supply companies optimize arsenic removal to a level of <1 μg L−1, which is technically feasible.

Citation: van Halem, D., Bakker, S. A., Amy, G. L., and van Dijk, J. C.: Arsenic in drinking water: a worldwide water quality concern for water supply companies, Drink. Water Eng. Sci., 2, 29-34, doi:10.5194/dwes-2-29-2009, 2009.
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