thanks for your answers. I think uses vermicompost with earthworm (E. Foetida) and vermicompost without veartworms in soil contaminated by gasoline or ACPM.
An article by Neumann et al 2014 in ISME highlights (The ISME Journal , (16 January 2014) | doi:10.1038/ismej.2013.233) the interactive effect of organic matter & microbiota in decontaminating polluted soils. Surely addition of vermicompost must also help in remediating the gasoline polluted soils.