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Soil treatment with chelating agents.
| Treatment | Soil Pb Concentration (mg/kg) | Type and Concentration of Chelating Agent (mg/kg) |
|---|---|---|
| CK | 1500 | - |
| E | 1500 | EDTA 1500 |
| N | 1500 | NTA 1500 |
| G | 1500 | GLDA 1500 |
| EN | 1500 | EDTA 750 + NTA 750 |
| EG | 1500 | EDTA 750 + GLDA 750 |
