ABSTRACT
As recent research papers have shown, geographic information systems (GIS) are often used to study the epidemiology of infectious diseases.
They have rarely been applied, however, to the epidemiology of waterborne disease. Nevertheless, GISs have proved to be extremely useful in assessing health risks in population-based studies of the epidemiology of drinking water-related disease. Aral and Maslia
demonstrated the utility of applying GIS to the analysis of human exposure to contaminated drinking water. They showed that contamination due to volatile organic compounds (VOCs) in groundwater reservoirs was distributed via the supply network and used GIS tools to estimate the extent of contamination and the location of exposed populations.
