Title: Bioremediation trial on aged PCB polluted soils - A bench study in Iceland
Authors: LEHTINEN TaruMIKKONEN AnySIGFUSSON BergurOLAFSDOTTIR KristinRAGNARSDOTTIR Kristin ValaGUICHARNAUD RANNVEIG ANNA
Citation: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Publisher: SPRINGER HEIDELBERG
Publication Year: 2013
JRC N°: JRC84185
ISSN: 0944-1344
URI: http://link.springer.com/article/10.1007%2Fs11356-013-2069-z#
http://publications.jrc.ec.europa.eu/repository/handle/JRC84185
DOI: 10.1007/s11356-013-2069-z
Type: Articles in periodicals and books
Abstract: Polychlorinated biphenyls (PCBs) pose a threat to the envuronment due to their high adsorption capacity to soil organic matter, stability and low reactivity, low water solubility, toxicity and ability to accumulate. With Icelandic soils, research on contamination issies has been very limited, and no data has been reported either on PCB degradation potential or rate. The goals of this research were to assess the bioavailability of aged PBCs in the soils of the old NATO facility in Keflavík, Iceland, and to find the best feasable biostimulation method to decrease the pollution. The effectiveness of different iostimulation additives at different temperatures and oxygen levels were tested. PCB bioavailability to soil fauna was assessed with earthworms (Eisenia foetia). PCBs were biovailable to earthworms, with less chlorinated congeners showing higher bioaccumulation factors than highly chlorinated congeners. Biostimulation with pine needles at 10 degrees under aerobic conditions resulted in nearly 38% degradation of total PCBs after two months incubation. Detection of aerobic PCB degrading bphA gene supports the indigenous capability of the soils to aerobically degrade PCBs.
JRC Directorate:Sustainable Resources

Files in This Item:
There are no files associated with this item.


Items in repository are protected by copyright, with all rights reserved, unless otherwise indicated.