title: Assessment of groundwater quality in a structurally deformed granitic terrain in Hyderabad, India.
abstract: Geochemical study of groundwater from a structurally deformed granitic terrain near Hyderabad (India) was carried out to understand and evaluate the hydrogeochemical processes and quality of groundwater. Several trace elements (Fe, Mn, Be, Al, V, Cr, Co, Ni, Cu, Zn, As, Sr, Mo, Cd, Sb, Ba, Pb, U) along with major ions and minor elements were precisely estimated in shallow and drilled wells to know the suitability of water for drinking and irrigation purposes. Analytical data shows that pH and major ion chemistry in dug wells and bore wells do not vary significantly, while some trace elements (Fe, Mn, Al, Be, Co, Pb, U and Zn) vary in dug wells and bore wells, which can be attributed to differential mineral weathering and dissolution/precipitation reactions along fractures/joints. Although the water is not potable, it was found to be suitable for irrigation with little danger in the development of harmful level of exchangeable sodium. It is inferred that the chemical composition of the groundwater in this region is likely to have its origin from silicate weathering reactions and dissolution/precipitation processes supported by rainfall and groundwater flow.
authors.affiliation: Geochemistry Division, ICP-MS lab, National Geophysical Research Institute, Uppal Road, Hyderabad, 500007, India. icpmsnarayanan@yahoo.co.in
authors.forename: Manavalan
authors.initials: M
authors.lastname: Satyanarayanan
authors.forename: Vysetti
authors.initials: V
authors.lastname: Balaram
authors.forename: Mohammed Saad
authors.initials: MS
authors.lastname: Al Hussin
authors.forename: Majed Abdul Rahman
authors.initials: MA
authors.lastname: Al Jemaili
authors.forename: Thota Gnaneshwar
authors.initials: TG
authors.lastname: Rao
authors.forename: Ramavati
authors.initials: R
authors.lastname: Mathur
authors.forename: Bonathu
authors.initials: B
authors.lastname: Dasaram
authors.forename: Soday Laxman
authors.initials: SL
authors.lastname: Ramesh
mesh_terms: D004784:Environmental Monitoring / Q000379:methods; D005618:Fresh Water / Q000032:analysis / Q000737:chemistry*; D007194:India; D019216:Metals, Heavy / Q000032:analysis*
chemical_list: D019216:Metals, Heavy