51
Phytoremediation of Organics
TABLE 3.1
The Concentration of DDT and Its Metabolites in the Research Soil, and Miscanthus Biomass after One Season of Phytoremediation a
Samples
Soil or Vegetation
Mass (kg)
Concentration (μg kg −1
)
Uptake Index (μg)
4,4’-DDE
2,4’-DDD
4,4’-DDT
4,4’-DDE
2,4’-DDD 4,4’-DDT
M.
× giganteus
2 MPC
Initial soil
3
146
± 22
3
± 1
92
± 21
438
9
276
Aboveground
0.031
0.2
± 0.1
18.3
± 6.1
98.4
± 27.1
62
× 10 −4
0.57
3.05
Root
0.035
35.2
± 6.5
352.3
± 32.2
1810.4
± 126.3
1.23
12.33
63.36
Final soil
3
105
± 18
2
± 1
83
± 12
315
6
249
M.
× giganteus
Dry Biomass
6 MPC
Aboveground
0.015
50.2
± 14.2
15.3
± 6.2
36.3
± 12.5
0.75
0.23
0.55
Root
0.026
158.1
± 87.5
134.3
± 25.1
139.8
± 23.6
4.11
3.49
3.63
13 MPC
Aboveground
0.010
41.4
± 21.2
17.3
± 11.5
36.7
± 15.7
0.41
0.17
0.37
Root
0.022
246.3
± 123.3
135.5
± 27.1
191.1
± 55.1
5.42
2.98
4.20
33 MPC
Aboveground
0.008
22.2
± 9.2
36.1
± 18.2
32.0
± 16.0
0.18
0.29
0.26
Root
0.020
267.4
± 42.1
60.4
± 19.1
212.6
± 27.1
5.35
1.21
4.25
45 MPC
Aboveground
0.007
36.1
± 27.2
112.3
± 20.5
27.9
± 9.9
0.25
0.79
0.20
Root
0.021
453.3
± 30.1
113.4
± 15.2
52.1
± 11.1
9.52
2.38
1.09
62 MPC
Aboveground
Died
Root
М. sinensis
Dry Biomass
62 MPC
Initial soil
3
2750
± 88
933
± 48
2498
± 45
8250
2799
7494
Aboveground
0.014
151.2
± 45.3
78.4
± 29.3
12.4
± 7.0
2.12
1.10
0.17
Root
0.009
570.5
± 53.3
45.1
± 22.0
247.2
± 76.4
5.13
0.41
2.22
Final soil
3
1230
± 49
888
± 79
1991
± 221
3690
2664
5973
Source:
Modified from Nurzhanova et al. (2017).
a
Notice:
value 2 MPC refers to two times of MPC or 2
× 0.1 mg kg −1
= 0.2 mg kg −1
.