(a) Accessibility to good water source, (b) aquifer suitability stress index, (c) ground water quality stress index. Figure 3 (a) is created by averaging binary variable, GW, of accessibility to good water source at household level to the cluster level. In figures 3 (b) and (c) higher values indicate poorer aquifer suitability under higher population densities and poorer ground water quality under higher population densities respectively.
Pande et al. International Journal of Health Geographics 2008 7:17 doi:10.1186/1476-072X-7-17