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Biodegradation of 2,4-dichlorophenol in the presence of volatile organic compounds in soils under different vegetation types.

Rhodes, Angela and Owen, Susan M. and Semple, Kirk T. (2007) Biodegradation of 2,4-dichlorophenol in the presence of volatile organic compounds in soils under different vegetation types. FEMS Microbiology Letters, 269 (2). pp. 323-330. ISSN 0378-1097

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Abstract

It has been suggested that monoterpenes emitted within the soil profile, either by roots or by decaying biomass, may enhance the biodegradation of organic pollutants. The aim of this study was to evaluate the effect of biogenic volatile organic compounds (VOCs) on the catabolism of 2,4-dichlorophenol in soils. Soils were collected from areas surrounding monoterpene (woodland) and nonmonoterpene (grassland)-emitting vegetation types. Soils were spiked with [UL-C-14] 2,4-dichlorophenol at 10 mg kg(-1) and amended with alpha-pinene, p-cymene or a mix of monoterpenes (alpha-pinene, limonene and p-cymene in 1 : 1 : 1 ratio). The effects of monoterpene addition on the catabolism of [UL-C-14] 2,4-dichlorophenol to (CO2)-C-14 by indigenous soil microbial communities were assessed in freshly spiked and 4-week-aged soils. It was found that aged woodland soils exhibited a higher level of [UL-C-14] 2,4-dichlorophenol degradation, which was subsequently enhanced by the addition of monoterpenes (P < 0.001), with the VOC mix and alpha-pinene amendments showing increased [UL-C-14] 2,4-dichlorophenol catabolism. This study supports claims that the addition of biogenic VOCs to soils enhances the degradation of xenobiotic contaminants.}

Item Type: Article
Journal or Publication Title: FEMS Microbiology Letters
Uncontrolled Keywords: volatile organic compounds ; monoterpenes ; 2 ; 4-dichlorophenol ; biodegradation
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 18532
Deposited By: Prof Kirk T. Semple
Deposited On: 27 Oct 2008 11:59
Refereed?: Yes
Published?: Published
Last Modified: 18 Sep 2013 16:18
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/18532

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