Skip to main content

Table 4 Concentration of heavy metals in stem samples of medicinal plants

From: Investigation of heavy metals in frequently utilized medicinal plants collected from environmentally diverse locations of north western India

  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
  1. *Beyond permissible limit defined by WHO.