Ecotoxicology and Environmental Safety, Journal Year: 2020, Volume and Issue: 208, P. 111548 - 111548

Published: Nov. 11, 2020

In order to understand the pollution status of groundwater with geochemical evolution and appraisal its probable public health risk due nitrate (NO3–) fluoride (F–), a total 93 samples were collected during pre-monsoon (May) period from Wardha sub-basin, central India. By employing Piper plot, transition Ca–HCO3 type water (recharge waters) Na–Cl (saline water) through mixed Ca–Na–HCO3, Ca–Mg–Cl (reverse ion exchange Ca–Cl types (leachate waters), observed. The Geogenic processes such as silicate, dolomite, halite carbonate weathering along calcite precipitation process identified major controlling factors for alteration chemistry. Saturation index highlighted that in area is oversaturated respect mineral under saturated gypsum, fluorite halite. high NO3– F– concentration overpassing permissible limit found 54.8% 18.5% samples. plot Na+/Ca2+, Na+/Mg2+ F–/Cl– established bearing rock responsible contamination. Based on cluster analysis, was grouped into Cluster-I Ca–Na–HCO3 (61.3%) Cluster-II Na–Ca–HCO3–Cl (30.1%). hazard (HI) based human assessment (HHRA) model cumulative toxicity oral dermal pathways computed 100%, 97.85% 96.77% children, female male populations respectively. HQ(nitrate) > 1 ingestion pathway 84.95%, 68.82% 62.37%, HQ(fluoride) 83.87%, 62.37% 43.01% recorded population study very severe impact contaminated health.

Language: Английский