Table 1 Heavy metal concentration of control and contaminated soil extracted with aqua regia
From: Effect of chemical amendments on reduction of bioavailable heavy metals and ecotoxicity in soil
Elements | As | Cd | Cu | Ni | Pb |
|---|---|---|---|---|---|
(mg/kg) | (mg/kg) | (mg/kg) | (mg/kg) | (mg/kg) | |
Control soil | 2.77 | 0.42 | 3.02 | 10.76 | 16.75 |
Contaminated soil | 306.71 | 11.72 | 16.79 | 27.88 | 188.25 |
Tolerable level | 25 | 4 | 150 | 100 | 200 |