Probabilistic Human Health Risk Assessment of Fe, As and Mn in the Groundwater of Dhamrai Upazila, Dhaka, Bangladesh

In Bangladesh, groundwater is the most important source of potable water. This study aims to investigate amount Fe, Mn and As in assess health risks through oral ingestion these trace metals. Groundwater samples were collected from 20 sample sites throughout Baishakanda union, Dhamrai upazila for appointment risk assessment studies. The concentrations Mn, measured using an atomic absorption spectrophotometer. Mean concentration metal level respectively descending order as Fe>Mn>As. found average Fe (1.8 mg/L), (0.74mg/L), (0.038 mg/L) where mean value exceeds DoE, WHO, USEPA standards limit. On other hand, WHO non-carcinogenic human was calculated by justifying HQ (Hazard Quotient) HI Index).A child (11.4056) more vulnerable than adult (5.3769). Furthermore, pollution pose a high carcinogenic risk, with children (3.84×10-3) being adults (1.81×10-3).The research area's significant well cancer-risk (As) susceptibility local population.