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Kengara, F.O.* ; Dörfler, U. ; Welzl, G. ; Munch, J.-C. ; Schroll, R.

Evidence of non-DDD pathway in the anaerobic degradation of DDT in tropical soil.

Environ. Sci. Pollut. Res. 26, 8779-8788 (2019)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
DDT transformation to DDD in soil is the most commonly reported pathway under anaerobic conditions. A few instances of DDT conversion to products other than DDD/DDE have been reported under aerobic conditions and hardly any under anaerobic conditions. In particular, few reports exist on the anaerobic degradation of DDT in African tropical soils, despite DDT contamination arising from obsolete pesticide stockpiles in the continent as well as new contamination from DDT use for mosquito and tsetse fly control. Moreover, the development of possible remediation strategies for contaminated sites demands adequate understanding of different soil processes and their effect on DDT persistence, hence necessitating the study. The aim of this work was to study the effect of simulated anaerobic conditions and slow-release carbon sources (compost) on the dissipation of DDT in two tropical clay soils (paddy soil and field soil) amenable to periodic flooding. The results showed faster DDT dissipation in the field soil but higher metabolite formation in the paddy soil. To explain this paradox, the levels of dissolved organic carbon and carbon mineralization (CH4 and CO2) were correlated with p, p-DDT and p, p-DDD concentrations. It was concluded that DDT underwent reductive degradation (DDD pathway) in the paddy soil and both reductive (DDD pathway) and oxidative degradation (non-DDD pathway) in the field soil.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Persistence ; Half-life ; Mineralization ; Dissipation ; Co-metabolism ; Electron Acceptors; Organochlorine Pesticides Ocps; Beta-cyclodextrin; Dichlorodiphenyltrichloroethane Ddt; Electron-acceptors; Humic Acids; Biodegradation; Bioremediation; Oxidation; Transformation; Contamination
Sprache englisch
Veröffentlichungsjahr 2019
HGF-Berichtsjahr 2019
ISSN (print) / ISBN 0944-1344
e-ISSN 1614-7499
Zeitschrift Environmental Science and Pollution Research
Quellenangaben Band: 26, Heft: 9, Seiten: 8779-8788 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort Tiergartenstrasse 17, D-69121 Heidelberg, Germany
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Soil Ecology (IBOE)
Institute of Developmental Genetics (IDG)
POF Topic(s) 20402 - Sustainable Plant Production
30204 - Cell Programming and Repair
20405 - Terrestrial Systems – from Observation to Prediction
Forschungsfeld(er) Environmental Sciences
Genetics and Epidemiology
PSP-Element(e) G-504400-002
G-500500-001
G-504400-004
DOI 10.1007/s11356-019-04331-x
WOS ID WOS:000464851100037
Scopus ID 85061031124
PubMed ID 30712212
Erfassungsdatum 2019-03-12
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