Table 1.
Heavy metals | Standard value (ppm) | Observed value (ppm) in I. Cuspidata |
|
---|---|---|---|
Stem powder | Root powder | ||
As | 3 | 0.22 ± 0.021 | 0.15 ± 0.02 |
Cd | 0.3 | 0.07 ± 0.015 | 0.1 ± 0.018 |
Pb | 10 | 1.61 ± 0.072 | 3.4 ± 0.062 |
Hg | 1 | 0.25 ± 0.05 | 0.12 ± 0.04 |
Values are expressed as mean ± SD, n = 3.