Porcellio scaber Latr. and Lumbricus terrestris L.—PAHs Content and Remediation of Long-Term Aging Soil Contamination with Petroleum Products during a Single- and Two-Species Experiment

The presence of earthworms in soil contaminated with petroleum products (PPs) increase the rate decomposition. use more than one animal species simultaneously remediation could accelerate process. However, effects may be different when long-term aging contamination exists during which toxic by-products can formed. This study evaluated effect PPs (petrol, diesel fuel, and used engine oil) carried out 12 24 months earlier on life parameters Lumbricus terrestris L. single- dual-species breeding Porcellio scaber Latr. changes content total hydrocarbons (TPH) were also measured, as levels polycyclic aromatic hydrocarbon (PAH) accumulation bodies test animals. Survival cultivated separately (single-species experiment) fuel significantly decreased, while body mass gain was not changed under influence tested PPs. Breeding together P. contributed to significant mortality regardless treatments, woodlice showed much greater resistance Occurrence both animals oil resulted a reduction TPH after 4 weeks (by 29% compared initial soil). PAHs tissues higher scaber, highest amounts found exposed oil. Use considered promising scenario for increasing effectiveness soils products, however, further research is needed establish conditions preventing excessive such layout.