Risk Assessment of Trace Element Contamination in Drinking Water and Agricultural Soil: A Study in Selected Chronic Kidney Disease of Unknown Etiology (CKDu) Endemic Areas in Sri Lanka

Figure 2

Interpolation of heavy metal pollution index (HPI) in sampling location via drinking water analysis: (a) Eppawala GND in Anuradhapura district, (b) Ambagaswewa GND in Polonnaruwa district, and (c) Dambethalawa GND in Ampara district (the reference).