Allan, Ian J. and Semple, Kirk T. and Hare, Rina and Reid, Brian J. (2006) Prediction of mono- and polycyclic aromatic hydrocarbon degradation in spiked soils using cyclodextrin extraction. Environmental Pollution, 144 (2). pp. 562-571. ISSN 0269-7491Full text not available from this repository.
In this study, an aqueous-based hydroxypropyl-beta-cyclodextrin (HPCD) extraction technique was assessed for its capacity to determine the microbially degradable fraction of mono- and polycyclic aromatic hydrocarbons in four dissimilar soils. A linear relationship (slope = 0.90; R-2 = 0.89), approaching 1:1 between predicted and observed phenanthrene mineralization, was demonstrated for the cyclodextrin extraction; however, the water only extraction underestimated the microbially available fraction by a factor of three (slope = 3.35; R-2 = 0.64). With respect to determining the mineralizable fraction of p-cresol in soils, the cyclodextrin extraction (slope = 0.94; R-2 = 0.84) was more appropriate than the water extraction (slope = 1.50; R-2 = 0.36). Collectively, these results suggested that the cyclodextrin extraction technique was suitable for the prediction of the mineralizable fraction of representative PAHs and phenols present in dissimilar soils following increasing soil-contaminant contact times. The assessment of the microbial availability of contaminants in soils is important for a more representative evaluation of soil contamination. (c) 2006 Elsevier Ltd. All rights reserved.
|Journal or Publication Title:||Environmental Pollution|
|Uncontrolled Keywords:||PAHs ; phenols ; biodegradation ; HPCD extraction ; prediction|
|Subjects:||G Geography. Anthropology. Recreation > GE Environmental Sciences|
|Departments:||Faculty of Science and Technology > Lancaster Environment Centre|
|Deposited By:||Prof Kirk T. Semple|
|Deposited On:||27 Oct 2008 08:55|
|Last Modified:||26 Jul 2012 15:18|
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