| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8865860 | Journal of Geochemical Exploration | 2018 | 12 Pages |
Abstract
Ingestion of Arsenic (As) through groundwater has become a severe public health concern around the world. In >70 countries groundwater with elevated concentrations of As has been reported. The present study estimates the As concentration as high as 399â¯Î¼g/L in Rapti River Basin which lies in Terai region of Uttar Pradesh, India. The villages on the left bank showed As contamination whereas villages on the right bank does not show As concentration above WHO standards of 10â¯Î¼g/L. High concentration of iron (Fe) along with bicarbonate (HCO3â) and As indicates reductive dissolution of FeOOH leading enrichment of As in groundwater. Highly reducing conditions are also indicated by low values of SO4/Cl ratio (ranges between 0 and 3.57). Topography, geology and river dynamics seem to govern the As contamination as depressions/low lying areas shows presence of high As in the aquifers.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Economic Geology
Authors
Chander Kumar Singh, Anand Kumar, Sonal Bindal,