Heavy metals like Pb, Cr, Cd, Cu, Fe, Ni, Co, Mn and other minerals including Na and K were investigated in both black and green commercial tea samples by using atomic adsorption Spectrophotometry. In all the tea samples, the concentration of Pb was found high. In one of the black tea sample Cr was found in greater amount, 14.75 mg/kg, while Fe, Zn and Cu was found in lower concentration in all tea samples. The main purpose of the study was to investigate the concentration of heavy metals and to make awareness among the public about the use of such tea leaves containing high amount of toxic metals.
Y IQBAL ,S J KHALIL ,F KHAN ,I HUSSAIN ,
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