International Journal of Phytomedicine and Phytotherapy
Table 2 Concentration of different heavy metal (mg/L) in a plant sample with WHO Standards
Metal | Concentration (mg/L) | mg/g sample | WHO Standard (mg/L) |
|---|---|---|---|
Iron (Fe) | 2.04 | 0.204 | – |
Manganese (Mn) | 0.47 | 0.047 | – |
Zinc (Zn) | 0.41 | 0.041 | 50.0 |
Lead (Pb) | 0.10 | 0.01 | 10.0 |
Chromium (Cr) | < 0.05 | < 0.005 | 0.02 |
Cobalt (Co) | < 0.05 | < 0.005 | – |
Nickel (Ni) | < 0.05 | < 0.005 | 1.63 |
Cadmium (Cd) | < 0.003 | < 0.003 | 0.3 |