HEALTH RISK ASSESSMENT ASSOCIATED WITH ARSENIC IN GROUNDWATER IN THE STATE OF PUNJAB, INDIA
In the present study, a total of 275 wells were sampled and As was detected in 53 wells. 19% of the 53 As affected groundwater wells have concentrations above World Health organization (WHO) guideline of 10 μg/L. Further, high (> 1) Health Hazard Quotients (HHQ) were found in ~ 21% of wells; this indicates a potential risk from exposure to arsenic and other contaminants in the groundwater used for drinking purposes. We are carrying out a more detailed health risk assessment to estimate the extent of the health impacts plausibly attributable to arsenic in these groundwater. There is an urgent need for a detailed depth-wise analysis of groundwater arsenic to identify depths at which the groundwater arsenic hazard is lower.
Keywords: Arsenic concentration, groundwater, health hazard quotient, Punjab, Northwest India