Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Ground water samples (38) collected from Taluka Daur, District Nawabshah were analyzed for their heavy metal concentration. The concentration of heavy metals were found in the ranges Cd 2-17 µg/L, Pb 6-53 µg/L, Zn 0-228 µg/L, Cu 0-99 µg/L, Ni 13-90 µg/L, Fe 75-1355 µg/L, Co 5-48 µg/L and Mn 1-517 µg/L. Eleven water samples out of 38 were found as safe for drinking purpose based on total dissolved salts (500 mg/L), but only two water samples were suitable for human consumption with respect to their metal concentrations. The water samples were found contaminated with toxic metals Pb and Cd. Among these metals Pb-Co, Fe-Zn, Mn-Cd, Cu-Zn and Ni-Cd showed a similarity index. Contamination index (Cd) for the metal ions examined was calculated at each sampling station. The results indicated 4 samples low (Cd < 1), 4 samples medium (Cd < 3) and 28 samples high (Cd > 3) contaminated.

Muhammad Yar Khuhawar ,