“…Over at least the past two decades, there has been increased concern regarding the quality of tap water due to pollution and its undesirable taste and odor (Saleh et al, 2001;Ikem et al, 2002). The pollution of tap water could originate from several sources, including contamination from water pipes and storage tanks (Parag & Roberts , 2009) and, in the absence of proper and periodic maintenance, from disinfectant by-products resulting from the treatment of water by ozonation and chlorination (Richardson 2003;Chen & Westerhoff , 2010). Thus, for the sake of safety and quality, people are switching from tap water to bottled water.…”