Research Article

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 6

The calculated chronic daily intake (CDI) and hazard quotient (HQ) values of drinking water samples collected from CKDu prevalent and non-CKDu prevalent areas, Sri Lanka.

Sampling siteCdCrPbAsCuMnZnAl

CDI (oral; mg/kg/day)GK5 × 10−62.31 × 10−38 × 10−61.26 × 10−34.20 × 10−54.96 × 10−37.73 × 10−32.27 × 10−3
DMB1 × 10−61.68 × 10−32 × 10−62.44 × 10−45.80 × 10−52.17 × 10−34.30 × 10−59.06 × 10−4
HQ (oral)GK5.46 × 10−37.70 × 10−12.40 × 10−31.26 × 10°1.05 × 10−33.54 × 10−12.58 × 10−22.27 × 10−1
DMB8.4 × 10−45.59 × 10−14.80 × 10−42.44 × 10−11.45 × 10−31.55 × 10−11.44 × 10−49.06 × 10−2

GK = Girandurukotte and DMB = Dambethalawa.