![]() ![]() ![]() On the other hand, the contents of Zn and Cu in green tea were higher than the corresponding values for black tea. The concentration of Pb, Cd, and As in green tea was significantly lower than black tea (P-value < 0.05). According to the results, the content of the PTEs is dependent on the type of tea (black or green), the place of cultivation (Iran or India), and the supplied form (both bagged and loose-leaf). Besides, the transfer rate of PTEs from made tea into tea infusion was investigated, and the related health risk for consumers was assessed. ![]() The concentration of potentially toxic elements (PTEs), including lead (Pb), cadmium (Cd), arsenic (As), zinc (Zn), and copper (Cu), among 160 samples of black and green tea-both bagged and loose-leaf-in Iran was determined using a graphite furnace atomic absorption spectrophotometer (GF-AAS). ![]()
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