White Black Red Green Cd (μg/Kg, wet weight) 38.20 ± 50.12 <LOQ1 31.00 ± 27.15 7.75 ± 13.88 Co (mg/Kg, wet weight) 0.70 ± 0.095 0.44 ± 0.09 0.45 ± 0.16 0.46 ± 0.20 Cr (mg/Kg, wet weight) 1.12 ± 0.38 0.38 ± 0.15 2.56 ± 0.54 0.26 ± 0.08 Cu (mg/Kg, wet weight) 5.46 ± 1.32 5.64 ± 1.19 7.76 ± 1.33 8.40 ± 4.5 Fe (mg/Kg, wet weight) 90.00 ± 28.85 33.29 ± 13.72 227.43±68.39 65.66 ± 26.77 Mg (mg/Kg, wet weight) 142.33±103.22 58.03±38.53 99.99±41.85 38.13±19.79 Ni (mg/Kg, wet weight) 3.38 ± 0.86 2.82 ± 0.53 3.87 ± 0.48 2.31 ± 0.54 Pb (μg/Kg, wet weight) 154.05 ± 183.74 26.00 ± 25.93 102.40± 47.51 38.90 ± 22.92 Zn (mg/Kg, wet weight) 7.35 ± 1.60 5.04 ± 0.80 7.20 ± 1.06 5.16 ± 1.11

1LOQ: Quantification limit

Table 3: Cd, Co, Cr, Cu, Fe, Mg, Ni, Pb and Zn contents in the different types of tea: mean ± standard deviation.