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Jiang, X.* ; Yediler, A. ; Yufang, S.* ; Sun, T.* ; Kettrup, A.

Effect of linear alkylbenzene sulphonate (LAS) on the mineralization, metabolism and uptake of 14C-phenanthrene in a model ecosystem (water-lava-plant-air).

Chemosphere 61, 741-751 (2005)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The aim of this work was to evaluate the effect of linear alkylbenzene sulfonate (LAS, 200 mg l−1) on the fate of phenanthrene in a model ecosystem “water–lava–hydrophytes–air”. The experiments were conducted using two closed cultivation chamber systems. Rushes (Juncus effesus) were selected as a representative hydrophyte. Five hundred micrograms per liter of phenanthrene in a culture solution containing a 14C-activity of 75 μCi per chamber was applied (i) to investigate the degradation of the labeled test substance and the transfer processes within the system; (ii) to determine the mass-balance possible and (iii) to detect the occurrence of volatile test substances, their volatile metabolites and the degradation end-product CO2 in the gas phase. Most of the applied 14C-activity was found in the plant (41–45%), in which ≈95% was associated with plant roots and ≈5% with shoots. The 14C-activity recovered in the form of VOCs and CO2 was measured in lava (18–29%, 8–11%), and in the culture solution (10–14% and 1%), respectively. Majority of the applied 14C-activity existed in two forms, i.e. (1) polar metabolites (26%), of which 91% were found in plant roots, and (2) un-extractable residues (23%), most of which were in plant roots (40%) and bounded to lava (58%). The presence of LAS significantly increased the volatilization of phenanthrene and its metabolites, inhibited its mineralization and decreased the level of 14C-activity in lava. Moreover, LAS reduced the phenanthrene level in plant roots.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter 14C-phenanthrene; Phenanthrene metabolites; LAS; Combined effect on translocation; Closed chambers; Mass-balance; Juncus effesus; Model ecosystem ‘water–lava–hydrophyte–air’
ISSN (print) / ISBN 0045-6535
e-ISSN 1879-1298
Zeitschrift Chemosphere
Quellenangaben Band: 61, Heft: 5, Seiten: 741-751 Artikelnummer: , Supplement: ,
Verlag Elsevier
Verlagsort Kidlington, Oxford
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Ecological Chemistry (IOEC)