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Investigations into the Vertical Distribution of PCDDs and Mineralogy in Three Ball Clay Cores from the United States Exhibiting the Natural Formation Pattern
Umeå University, Faculty of Science and Technology, Chemistry.
Umeå University, Faculty of Science and Technology, Chemistry.
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2004 (English)In: ENVIRONMENTAL SCIENCE & TECHNOLOGY, ISSN 0013-936X, Vol. 38, no 19, 4956-63 p.Article in journal (Refereed) Published
Abstract [en]

In this study, we report the PCDD and mineralogical results from the analyses of 27 different samples from three ball clay cores from different locations in Kentucky and Tennessee. One goal of this study was to determine if there is a correlation between the mineralogy of the ball clay samples and the PCDD concentrations and/or homologue profiles in each sample. Samples from each of the three cores exhibited the natural formation profile with extremely high PCDD concentrations with low and mostly undetectable levels of polychlorinated dibenzofurans (PCDFs). The maximum toxic equivalents (TEQs) for Cores C-E were 2500, 440, and 15 000 pg WHO-TEQ/g, respectively. Although there does not seem to be a direct correlation between mineralogy and PCDD concentrations or homologue profiles, the mineralogy of Core C is substantially different than that of Cores D and E, which may in part explain the differences in congener patterns we observed among the three cores.

Place, publisher, year, edition, pages
2004. Vol. 38, no 19, 4956-63 p.
URN: urn:nbn:se:umu:diva-14298DOI: doi:10.1021/es049579hOAI: diva2:153969
Available from: 2007-05-28 Created: 2007-05-28 Last updated: 2011-01-12Bibliographically approved

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Tysklind, MatsAndersson, Rolf
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