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Indigenous 14C-phenanthrene biodegradation in “pristine” woodland and grassland soils from Norway and United Kingdom

Abstract

In this study, the indigenous microbial mineralisation of 14C-phenanthrene in seven background soils (four Norwegian woodland and three UK (two grassland and one woodland)) was investigated. ∑PAHs ranged from 16.39 – 285.54 ng g-1 dw soil. Lag phases (time before 14C-phenanthrene mineralisation reached 5%) were longer in all of the Norwegian soils and correlated positively with TOC, but negatively with ∑PAHs and phenanthrene degraders for all soils. Phenanthrene mineralisation in the soils varied due to physic-chemical properties. Results show that indigenous microorganisms can adapt to 14C-phenanthrene mineralisation following diffuse PAH contamination. Considering the potential of soil as a secondary PAH source, these findings highlight the important role of indigenous microflora in the processing of PAHs in the environment.

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Publication details

The article was received on 29 May 2017, accepted on 28 Sep 2017 and first published on 04 Oct 2017


Article type: Paper
DOI: 10.1039/C7EM00242D
Citation: Environ. Sci.: Processes Impacts, 2017, Accepted Manuscript
  • Open access: Creative Commons BY-NC license
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    Indigenous 14C-phenanthrene biodegradation in “pristine” woodland and grassland soils from Norway and United Kingdom

    U. V. Okere, J. Schuster, U. O. Ogbonnaya, K. C. Jones and K. T. Semple, Environ. Sci.: Processes Impacts, 2017, Accepted Manuscript , DOI: 10.1039/C7EM00242D

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