The Groundwater Geochemistry and the Human Health Risk Assessment of Drinking Water in an Area with a High Prevalence of Chronic Kidney Disease of Unknown Etiology (CKDu), Sri Lanka

Table 3

The key parameters for computing the CDI of nephrotoxic elements through drinking water.

Parameter	Units	For an adult
Ingestion rate (IRW)	L/day	2.94
Exposure frequency (EF)	Day/year	365
Exposure duration (ED)	Year	70
Body weight (BW)	kg	70
Average time (AT)	Days	25550
Concentration of element ()	mg/L	Present study