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Table 4 Average concentration (mean ± SD, n = 3, μg/g dry weight basis) of major, trace and toxic elements in soil samples from Tepi, Bombe, Hadaro and Illubabur

From: Levels of essential and non-essential metals in ginger (Zingiber officinale) cultivated in Ethiopia

Metal Average concentration (mean ± SD, n = 3, μg/g dry weight basis)
Tepi soil Bombae soil Hadaro soil Illubabur
Ca 3580 ± 16 2060 ± 10 2040 ± 43 1770 ± 39
Mg 2430 ± 141 1460 ± 45 1660 ± 8 2440 ± 8
Cu 33.9 ± 0.5 3.76 ± 0.07 6.77 ± 0.17 33.7 ± 0.8
Zn 389 ± 36 344 ± 28 255 ± 14 413 ± 39
Mn 6470 ± 81 1760 ± 26 1920 ± 28 4680 ± 32
Ni 79.3 ± 1.2 14.1 ± 0.3 21.4 ± 1.0 73.1 ± 4.7
Fe 46900 ± 600 21800 ± 821 21700 ± 407 46170 ± 484
Co 159 ± 2.8 57.1 ± 2.1 48.5 ± 0.6 132 ± 1.9
Cr 139 ± 12 110 ± 7.6 114 ± 1.8 163 ± 2.5
Cd 1.08 ± 0.08 0.24 ± 0.02 0.73 ± 0.06 1.20 ± 0.07
Pb ND ND ND ND
  1. ND: Concentration of the tested heavy metal was below the method detection limit.