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

Okere, Uchechukwu and Schuster, Jasmin and Ogbonnaya, Uchenna and Jones, Kevin Christopher and Semple, Kirk Taylor (2017) Indigenous 14C-phenanthrene biodegradation in “pristine” woodland and grassland soils from Norway and United Kingdom. Environmental Science: Processes and Impacts, 19 (11). pp. 1437-1444. ISSN 2050-7887

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Abstract

In this study, the indigenous microbial mineralisation of 14C-phenanthrene in seven background soils (four from Norwegian woodland and three from the UK (two grasslands and one woodland)) was investigated. ∑PAHs ranged from 16.39 to 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. 14C-phenanthrene mineralisation in the soils varied due to physicochemical properties. The 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.

Item Type:
Journal Article
Journal or Publication Title:
Environmental Science: Processes and Impacts
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2300/2308
Subjects:
ID Code:
88829
Deposited By:
Deposited On:
20 Nov 2017 21:30
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Oct 2020 05:34