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Lack of an aging effect on the soil/air partitioning of PCBs.

Cousins, Ian T. and Mclachlan, Michael S. and Jones, Kevin C. (1998) Lack of an aging effect on the soil/air partitioning of PCBs. Environmental Science & Technology, 32 (18). pp. 2734-2740. ISSN 0013-936X

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Abstract

Two different laboratory experiments were undertaken to investigate whether the aging of polychlorinated biphenyls (PCBs) in soils affects their soil−air partitioning behavior. In the first, portions of a sandy loam soil were spiked and stored in glass jars for 3−392 days to artificially age the PCB residues. Soil−air partition coefficients (KSA) were then determined using a solid-phase fugacity meter. In the second experiment, a sewage sludge that had been highly contaminated with PCBs more than 30 years ago and stored in a lagoon was obtained and blended with soil. An additional 10 PCB congeners, which were shown not to be naturally present in the sludge-amended soil, were added. Aliquots of the spiked sludge-amended soil were stored for 1−42 days. After each storage period, the relative partitioning of the native and spiked congeners from the sludge-amended soil into the air was measured. Results from the two experiments showed that aging, by either storage in glass jars or exposure to natural processes in a lagoon for 30 years, did not affect the soil−air partitioning behavior of PCBs. There was a short period after spiking (2−12 weeks) in which the spiked PCBs were more readily partitioned into the air, but after this initial effect, there were no further changes in soil−air partitioning behavior.

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: 21810
Deposited By: ep_ss_importer
Deposited On: 09 Feb 2009 09:52
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 15:52
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/21810

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