Heavy metals, Cu (0.17 - 70.7), Ni ( less than 0.05 - 11.15), Cd ( less than 0.05 - 2.39), Co ( less than 0.05 - 0.78), Cr ( less than 0.05 - 9.43), Zn ( less than 0.05 - 2897), Pb ( less than 0.05 - 30.66), Mn ( less than 0.05 - 19) and Fe ( less than 0.05 - 188) in ug/L were determined using atomic absorption spectrometer
Representative portion of each sample of concentrates, middlings and tails was treated with aqua regia and other acid mixture and the solutions were analyzed for Au, Ag and base metals (Cu, Zn, Pb, Cr, Ni, Co, Mn and Cd) by atomic absorption spectrometer
in the geochemistry laboratory of NCE in Geology, University of Peshawar.
These water samples were analyzed for various physico-chemical parameters (i.e., such as pH, T, (EC), resistivity, TDS) by COSORT electrochemical analyzer C931, anions (i.e., SO4, NO3, Cl, HCO3) by Hach DR2800 spectrophotometer and major cations (i.e., Ca, Mg, Na, K) and heavy and trace metals (i.e., Fe, Mn, Cu, Cr, Cd, Pb, Ni, Zn and As) by atomic absorption spectrometer
equipped with graphite furnace in the Geochemistry laboratory of the Nation Centre of Excellence in Geology, Universirty of Peshawar.