Fate and bioavailability of C-14-pyrene and C-14-lindane in sterile natural and artificial soils and the influence of aging

Smidova, Klara and Hofman, Jakub and Ite, Aniefiok E. and Semple, Kirk T. (2012) Fate and bioavailability of C-14-pyrene and C-14-lindane in sterile natural and artificial soils and the influence of aging. Environmental Pollution, 171. pp. 93-98. ISSN 0269-7491

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Abstract

Soil organic matter is used to extrapolate the toxicity and bioavailability of organic pollutants between different soils. However, it has been shown that other factors such as microbial activity are crucial. The aim of this study was to investigate if sterilization can reduce differences in the fate and bioavailability of organic pollutants between different soils. Three natural soils with increasing total organic carbon (TOC) content were collected and three artificial soils were prepared to obtain similar TOCs. Soils were sterilized and spiked with C-14-pyrene and C-14-lindane. Total C-14 radioactivity, HPCD extractability, and bioaccumulation in Eisenia fetida were measured over 56 days. When compared to non-sterile soils, differences between the natural and artificial soils and the influence of soil-contaminant contact time were generally reduced in the sterile soils (especially with middle TOC). The results indicate the possibility of using sterile soils as "the worst case scenario" in soil ecotoxicity studies. (C) 2012 Elsevier Ltd. All rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Environmental Pollution
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3000/3005
Subjects:
ID Code:
62791
Deposited By:
Deposited On:
14 Mar 2013 14:14
Refereed?:
Yes
Published?:
Published
Last Modified:
30 Sep 2020 05:49