Tolerance of earthworms in soil contaminated with polycyclic aromatic hydrocarbon

Pyrene is a very resistant polycyclic aromatic hydrocarbon (PAH) with four benzene rings that survives in the environment. This study was aimed at investigating tolerance of earthworms soil contaminated pyrene. The studies were performed by employing gathered from shady regions adjacent to sewage ponds as pyrene degraders eradicate soil. Numerous factors affecting degradation efficiency explored, including effects contaminant concentration, earthworm and ration, condition. highest removal (31.2%) shown condition mixed cow dung. decomposition inhibited during sterilization due absence microorganisms indigenous pyrene-degrading bacteria. Nonetheless, are suitable for use