| |
Mean heavy metal concentration in stem samples (ppm)
|
|---|
|
S/N
|
Plant species
|
Mn
|
Cr
|
Pb
|
Fe
|
Cd
|
Ni
|
Co
|
Zn
|
Hg
|
|---|
|
1
|
Acacia nilotica
|
5.22 ± 0.1040
|
1.87 ± 0.0202
|
0.25 ± 0.0088
|
25.30 ± 0.1464
|
BDL
|
0.45 ± 0.0240
|
0.04 ± 0.0088
|
2.42 ± 0.2173
|
BDL
|
|
2
|
Bacopa monnieri
|
4.23 ± 0.0744
|
2.62 ± 0.0240*
|
2.34 ± 0.0173
|
17.16 ± 0.1763
|
0.02 ± 0.0033
|
0.26 ± 0.0284
|
0.05 ± 0.0033
|
6.75 ± 0.1223
|
BDL
|
|
3
|
Commiphora wightii
|
2.51 ± 0.0176
|
2.87 ± 0.0202*
|
0.63 ± 0.0088
|
19.45 ± 0.2334
|
BDL
|
0.55 ± 0.0173
|
0.02 ± 0.0088
|
7.74 ± 0.0802
|
BDL
|
|
4
|
Ficus religiosa
|
4.52 ± 0.0176
|
2.67 ± 0.0371*
|
0.36 ± 0.0317
|
24.35 ± 0.1808
|
0.02 ± 0.0010
|
0.64 ± 0.0145
|
0.12 ± 0.01201
|
4.17 ± 0.0736
|
BDL
|
|
5
|
Glycyrrhiza glabra
|
4.78 ± 0.0240
|
3.56 ± 0.0305*
|
0.41 ± 0.0185
|
21.21 ± 0.0173
|
0.03 ± 0.0120
|
0.06 ± 0.0120
|
0.20 ± 0.0185
|
5.52 ± 0.0202
|
BDL
|
|
6
|
Hemidesmus indicus
|
5.43 ± 0.0173
|
4.89 ± 0.0202*
|
0.66 ± 0.0352
|
15.42 ± 0.0176
|
0.03 ± 0.0145
|
1.07 ± 0.0057
|
0.23 ± 0.0881
|
7.13 ± 0.0115
|
BDL
|
|
7
|
Salvadora oleoides
|
2.85 ± 0.0218
|
3.68 ± 0.0202*
|
0.83 ± 0.0088
|
11.89 ± 0.0317
|
BDL
|
0.47 ± 0.0115
|
0.13 ± 0.0173
|
5.59 ± 0.0317
|
BDL
|
|
8
|
Terminalia bellirica
|
6.13 ± 0.0176
|
3.80 ± 0.0450*
|
0.63 ± 0.0115
|
16.34 ± 0.0392
|
0.03 ± 0.0088
|
0.43 ± 0.0173
|
0.21 ± 0.0290
|
5.46 ± 0.0545
|
BDL
|
|
9
|
Terminalia chebula
|
5.67 ± 0.0384
|
2.92 ± 0.0202*
|
0.62 ± 0.0384
|
16.19 ± 0.0633
|
0.03 ± 0.0152
|
0.64 ± 0.0750
|
0.20 ± 0.0589
|
6.32 ± 0.0202
|
BDL
|
|
10
|
Withania somnifera
|
2.39 ± 0.0218
|
4.93 ± 0.0185*
|
2.64 ± 0.0260
|
19.13 ± 0.0176
|
0.04 ± 0.0088
|
0.53 ± 0.0296
|
0.14 ± 0.0152
|
8.93 ± 0.0264
|
BDL
|
- *Beyond permissible limit defined by WHO.
