Effect of Sample Sources on Heavy Metal Concentration Measured in Beta Vulgaris Organs
Table 1
Mean metal concentrations (mg/kg).
Source samples
As
Cd
Co
Cr
Cu
Ni
Pb
Overall
1.25 (0.27)
0.43 (0.02)
0.95 (0.40)
4.97 (1.34)
2.45 (0.32)
0.18 (0.05)
2.93 (1.43)
M†
1.06 (0.21)
0.43 (0.02)
0.81 (0.19)
3.72 (0.51)
2.40 (0.39)
0.13 (0.04)
1.69 (0.40)
Leaves
1.05 (0.29)
0.41 (0.02)
0.62 (0.00)
3.26 (0.17)
2.39 (0.45)
0.10 (0.02)
1.58 (0.14)
Steam
0.96 (0.22)
0.44 (0.01)
0.75 (0.02)
3.59 (0.30)
2.16 (0.10)
0.11 (0.03)
1.35 (0.15)
Root
1.17 (0.05)
0.45 (0.01)
1.06 (0.02)
4.32 (0.25)
2.67 (0.41)
0.19 (0.01)
2.15 (0.32)
Soil
26.1 (2.57)
3.98 (0.12)
6.99 (0.13)
50.1 (1.35)
40.7 (1.64)c
2.55 (0.30)
13.2 (0.41)
S†
1.44 (0.18)c
0.44 (0.01)
1.09 (0.51)a
6.21 (0.33)c
2.51 (0.24)
0.22 (0.02)c
4.17 (0.87)c
Leaves
1.57 (0.01)b
0.42 (0.01)
0.76 (0.02)c
6.57 (0.17)c
2.31 (0.04)
0.21 (0.00)c
4.68 (0.54)c
Steam
1.54 (0.00)c
0.43 (0.00)
0.82 (0.02)b
6.14 (0.06)c
2.38 (0.09)
0.19 (0.00)b
3.08 (0.11)c
Root
1.21 (0.14)
0.46 (0.00)
1.69 (0.49)a
5.94 (0.30)c
2.83 (0.05)
0.26 (0.01)c
4.76 (0.32)c
Soil
26.6 (1.12)
4.14 (0.02)a
8.06 (0.01)c
59.0 (2.06)c
34.7 (0.06)
3.20 (0.00)b
33.4 (0.21)c
†Municipalities, M: Mosquera, S: Sibaté. Means (SD). The letters abc indicate values <0.05, <0.01, and <0.001, respectively. The mean metal concentrations of specific subgroups between Mosquera and Sibaté were compared; the letters were attached as a subscript in the subgroup where the mean concentration was higher (one-tail, independent samples t-test).
