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Table 2 Average concentration of elements found in vegetables of all farms (mg/kg)

From: Health risk assessment of potentially toxic elements via consumption of vegetables irrigated with polluted river water in Addis Ababa, Ethiopia

Elements Ethiopian Kale Lettuce Cabbage Swiss chard Carrot Potato Guideline valuea
Cr 1.60 2.57 1.66 1.96 2.23 1.43 2.3
Mn 28.19 42.53 29.31 147.07 14.05 5.40 500b
Fe 177.80 484.50 357.5 362.50 214.5 101.75 425.5
Cu 4.80 11.25 3.26 11.59 7.33 5.24 73.3
Zn 37.35 49.26 24.20 57.77 23.03 14.63 99.4
As 0.07 0.10 0.08 0.12 0.05 0.03 0.43
Sr 102.18 30.76 65.51 45.86 21.32 2.71
Cd 0.08 0.10 0.04 0.10 0.05 0.04 0.2c
Ba 46.71 18.07 31.65 69.17 18.85 1.97
B 21.79 21.18 16.97 33.71 17.90 6.10
V 0.40 0.86 0.60 0.69 0.39 0.14
Co 0.06 0.29 0.21 0.34 0.15 0.13 50b
Ni 0.63 1.82 1.26 1.47 1.00 0.55 67
  1. aWeigert (1991), bPendias and Pendias (1992); cFAO/WHO (2001)