Nano Science and Technology Institute
Nanotech 2007 Vol. 2
Nanotech 2007 Vol. 2
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 2
Chapter 7: Enviroment, Health and Society

Fate, Transport, and Toxicity of Nanomaterials in Drinking Water

Authors:Y. Zhang, B.A. Koeneman, Y. Chen, P. Westerhoff, D.G. Capco and J. Crittenden
Affilation:Arizona State University, US
Pages:678 - 680
Keywords:stability, removal, drinking water treatment, toxicity
Abstract:The objective of this research is to evaluate the potential risk of human exposure to nanomaterials in drinking water by examining three issues: 1) characteristics and stability of nanomaterials in the water environment; 2) removal of nanomaterials during conventional water treatment processes; and 3) the toxicity of nanomaterials on cells. Six commerical metal oxide nanoparticles, a lab-synthesized hematite nanoparticle and a water solule CdTe quantum dots were studied. The results showed that these nanomaterials had different stability in water and conventional water treatment could not remove these nanomaterials completely. In addition, toxicity studies showed that nanomaterials could flatten down the microvilli of cells and pass through the epithelial cells.
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