Bioavailability and biodegradation of polycyclic aromatic hydrocarbons in soils

Smith, M.J. and Lethbridge, G. and Burns, R.G. (1997) Bioavailability and biodegradation of polycyclic aromatic hydrocarbons in soils. Fems Microbiology Letters, 152 (1). pp. 141-147. ISSN 0378-1097. (The full text of this publication is not available from this repository)

The full text of this publication is not available from this repository. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1111/j.1574-6968.1997.tb10420...

Abstract

Inoculation of soil with bacteria (a Gram-negative rod [PD2] and a 4-membered consortium [DC1]) accelerated mineralisation of phenanthrene and pyrene (but not naphthalene) added individually to a pristine sand and a pristine organic soil. The half-life of naphthalene was 3.5 days in both soils whether inoculated or non-inoculated. However, the half-life of phenanthrene decreased from 86 days in non-inoculated sand soil and 80 days in the non-inoculated organic soil to 3.6 days in the sand and 3.1 days in organic soil when inoculated with PD2, and to 6.6 days in the sand and 8.7 days in the organic soil when inoculated with DC1. Phenanthrene mineralisation ceased after 23 days in DC1-inoculated soil and was 71.3 +/- 3.6% (sand) and 63.3 +/- 2.8% (organic). This compared with 96.8 +/- 3.8% (sand) and 102.8 +/- 2.5% (organic) after 8 days in PD2-inoculated soil. Inoculation with DC1 (but not PD2) also accelerated mineralisation of pyrene, where the half-life decreased from 155 days to 18 days in the sand soil, and from 216 days to 33 days in organic soil.

Item Type: Article
Subjects: Q Science > QR Microbiology
Divisions: Faculties > Science Technology and Medical Studies > School of Biosciences
Depositing User: T.J. Sango
Date Deposited: 12 May 2009 10:12
Last Modified: 12 May 2009 10:12
Resource URI: http://kar.kent.ac.uk/id/eprint/17965 (The current URI for this page, for reference purposes)
  • Depositors only (login required):