Short Communication

World Journal of Microbiology and Biotechnology

, Volume 11, Issue 6, pp 691-692

First online:

Biodegradation of polycyclic aromatic hydrocarbons in soil around Mathura oil refinery, India

  • B. T. Ashok
  • , S. Saxena
  • , K. P. Singh
  • , J. Musarrat

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Six polycyclic aromatic hydrocarbons [naphthalene, anthracene, phenanthrene, pyrene, chrysene and benzo(a)-pyrene] were detected in soil receiving effluents from an oil refinery. Biodegradation studies revealed a time-dependent disappearance of these polycyclic aromatic hydrocarbons when they were added to soil samples: naphthalene disappeared completely in 60 days, whereas phenanthrene, anthracene, pyrene, chrysene and benzo(a)pyrene decreased by 87%, 34%, 21%, 5% and 40%, respectively, in 120 days.

Key words

Biodegradation polycyclic aromatic hydrocarbons soil