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Evaluation of spiking procedures for the introduction of poorly water soluble contaminants into soil.

Reid, Brian J. and Northcott, Grant L. and Jones, Kevin C. and Semple, Kirk T. (1998) Evaluation of spiking procedures for the introduction of poorly water soluble contaminants into soil. Environmental Science & Technology, 32 (20). pp. 3224-3227. ISSN 0013-936X

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Abstract

The purpose of this study was to assess the suitability of various spiking procedures for the introduction of persistent organic pollutants (POPs) into soil environments. C-14-radiolabeled analogues of two representative polycyclic aromatic hydrocarbons (PAHs), phenanthrene (Phe), and benzo[a]pyrene (B[a]P), were introduced into soil using different spiking techniques, and the homogeneity of compound distribution in subsamples was assessed. It was established that under analogous spiking procedures dry soil could be spiked with greater homogeneity than wet soil. The procedure which gave the most homogeneous distribution of compound involved a single spiking/rehydration operation conducted on dry soil. Relative standard deviations of 2.40% for C-14-9-Phe and 3.65% for C-14-7-B[a]P were obtained for this procedure. An optimum procedure for the spiking of wet soil was established, giving relative standard deviations of 4.1% for C-14-9-Phe and 3.7% for C-14-7-B[a]P; This procedure employed a highly spiked wet soil inoculum to distribute the compound throughout the soil system. The influence of carrier solvent on microbial cell numbers determined as colony forming units was also evaluated and shown to have a dramatic negative impact at high volumes.

Item Type: Article
Journal or Publication Title: Environmental Science & Technology
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 18600
Deposited By: Prof Kirk T. Semple
Deposited On: 24 Oct 2008 15:48
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:19
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/18600

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