Table 2.
Element (mg/kg) | SRB | RF |
---|---|---|
Bulk elements | ||
K | 1.14 ± 0.08 a | 1.26 ± 0.05 a |
Na | 8.46 ± 0.15 a | 8.17 ± 0.36 a |
Mg | 1.18 ± 0.09 a | 0.89 ± 0.01 b |
Ca | 7.21 ± 0.23 b | 9.90 ± 0.20 a |
Trace elements | ||
Co | 0.032 ± 0.001 | N.D. * |
Cr | 9.50 ± 0.02 a | 0.025 ± 0.002 b |
Cu | 0.132 ± 0.009 a | 0.041 ± 0.005 b |
Fe | 5.66 ± 0.04 a | 1.58 ± 0.17 b |
Li | 0.022 ± 0.002 a | 0.012 ± 0.001 b |
Mn | 0.261 ± 0.009 a | 0.022 ± 0.002 b |
Al | 0.83 ± 0.03 a | 0.81 ± 0.09 a |
Sr | 0.020 ± 0.004 a | 0.012 ± 0.002 a |
Ba | 0.05 ± 0.02 a | 0.004 ± 0.001 a |
Ni | 2.06 ± 0.01 a | 0.23 ± 0.02 b |
Zn | 0.048 ± 0.001 b | 0.107 ± 0.012 a |
Se | 0.44 ± 0.07 a | 0.47 ± 0.10 a |
P | 1067 ± 2 a | 1053 ± 10 a |
S | 53.61 ± 0.08 a | 6.06 ± 0.04 b |
Polluting elements | ||
Pb | 0.064 ± 0.003 b | 0.115 ± 0.005 a |
As | N.D. * | N.D. |
Cd | 0.024 ± 0.003 a | 0.011 ± 0.001 b |
The values are presented as mean ± SD, different superscripts within the same row indicate significant differences of means, according to t-test (p < 0.05). * N.D.—Not detected.