Title

1999 14C pyrene bound residue evaluation using MIBK fractionation method for creosote contaminated soils

Document Type

Article

Journal/Book Title/Conference

Environmental Science and Technology

Volume

33

Publication Date

1-1-1999

First Page

776

Last Page

781

DOI

10.1021/es980609o

Abstract

The fate of [14C]pyrene was evaluated in creosote-contaminated soil undergoing remediation in a prepared bed system at the Champion International Superfund site in Libby, MT. 14C-bound residue formation was evaluated using the methyl isobutyl ketone (MIBK) humic fractionation procedure, and it increased through 294 days of incubation in biologically active microcosms for humic acid, fulvic acid, bound humic acid, and mineral-associated organic carbon fractions. The relative affinity of the added pyrene and transformation products was highest for the humic acid fraction. Bound residue formation in PAH-contaminated soil was observed to be an important fate mechanism in the prepared bed system and may be an acceptable end point- in the remediation of contaminated soil.

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