On the other hand, we observed that hydrocarbon loss in soil was inhibited in presence of SDS: the
higher the SDS concentration, the higher was the inhibition. More interaction mechanisms in soil than in
liquid culture and/or the accumulation of inhibiting metabolites in the course of SDS biodegradation might
be responsible. Similar results were described [6]: the addition of 100 and 500 mg SDS kg-1 soil slowed the
biodegradation of three-ring polycyclic aromatic compounds and significantly inhibited biodegradation of
four-ring aromatic compounds in a weathered contaminated soil.