Table 1. Composition of the different artificial soils and treatment of the experiment.
| Corn Oil | Sand | Kaolin | Fulvic acid | Humic acid | Sphagnum peat moss | Activated carbon | Aroclor1254 | Time of maturation | |
| (Sigma-aldrich, StLouis, USA) | See Sand (Carl RothGmbH, Karlsruhe,Germany) | (Sigma-aldrich,St Louis, USA) | Swanee River FAstandard I (IHSS,St Paul, USA) | (Sigma-aldrich,St Louis, USA) | (Sphagnum peat mossfrom baltic countries,Verve, France) | Activated charcoal 242276(Sigma-aldrich,St Louis, USA) | Concentration(µg.g−1 of DM)(Sigma-aldrich, Supelco) | in days | |
| Spiked corn oil (SO) | 100% | – | – | – | – | – | – | 19.2 | – |
| Standard soil (SS) | – | 77.80% | 22.20% | – | – | – | – | 19.2 | 21 |
| Fulvic acid (FA) | – | 76.20% | 21.90% | 1.92% | – | – | – | 19.2 | 21 |
| Sphagnum peat (SP) | – | 76.00% | 21.70% | – | – | 2.33% | – | 19.2 | 21 |
| Humic Acid (HA) | – | 75.80% | 21.70% | – | 2.56% | – | – | 19.2 | 21 |
| Sphagum peat andactivated carbon (SPAC) | – | 75.80% | 21.70% | – | – | 2.38% | 0.05% | 19.2 | 21 |
| Activated carbon (AC) | – | 77.70% | 22.20% | – | – | – | 0.05% | 19.2 | 21 |
| Negative controls (NC) | – | 77.80% | 22.20% | – | – | – | – | – | 21 |