Mapping of drinking water research: A bibliometric analysis of research output during 1992-2011

► Drinking water research was characterized based on SCI-Expanded during 1992-2011. ► Research emphases were obtained from title, author keywords and KeyWords Plus. ► Ozonation, chlorination and adsorption were common techniques and are getting popular. ► Emerging contaminants concerned arsenic, nitrate, fluoride, lead, and cadmium.