PuSH - Publikationsserver des Helmholtz Zentrums München

Geochemistry of dissolved organic matter in a spatially highly resolved goundwater petroleum hydrocarbon plume cross-section.

Environ. Sci. Technol. 50, 5536-5546 (2016)
Anhang DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
At numerous groundwater sites worldwide, natural dissolved organic matter (DOM) is quantitatively complemented with petroleum hydrocarbons. To date, research has been focused almost exclusively on the contaminants, but detailed insights of the interaction of contaminant biodegradation, dominant redox processes, and interactions with natural DOM are missing. This study linked on-site high resolution spatial sampling of groundwater with high resolution molecular characterization of DOM and its relation to groundwater geochemistry across a petroleum hydrocarbon plume cross-section. Electrospray- and atmospheric pressure photoionization (ESI, APPI) ultrahigh resolution mass spectrometry (FT-ICR-MS) revealed a strong interaction between DOM and reactive sulfur species linked to microbial sulfate reduction, i.e., the key redox process involved in contaminant biodegradation. Excitation emission matrix (EEM) fluorescence spectroscopy in combination with Parallel Factor Analysis (PARAFAC) modeling attributed DOM samples to specific contamination traits. Nuclear magnetic resonance (NMR) spectroscopy evaluated the aromatic compounds and their degradation products in samples influenced by the petroleum contamination and its biodegradation. Our orthogonal high resolution analytical approach enabled a comprehensive molecular level understanding of the DOM with respect to in situ petroleum hydrocarbon biodegradation and microbial sulfate reduction. The role of natural DOM as potential cosubstrate and detoxification reactant may improve future bioremediation strategies.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Scopus
Cited By
Altmetric
5.393
1.718
35
48
Tags
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern

Zusatzinfos bearbeiten
Eigene Tags bearbeiten
Privat
Eigene Anmerkung bearbeiten
Privat
Auf Publikationslisten für
Homepage nicht anzeigen
Als besondere Publikation
markieren
Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Atmospheric-pressure Photoionization; Ion-cyclotron Resonance; Resolution Mass-spectrometry; Oil-contaminated Aquifer; Water Horizon Oil; High-field Nmr; Aromatic-hydrocarbons; Hydrogen-sulfide; Drinking-water; Comprehensive Characterization
Sprache
Veröffentlichungsjahr 2016
HGF-Berichtsjahr 2016
ISSN (print) / ISBN 0013-936X
e-ISSN 1520-5851
Quellenangaben Band: 50, Heft: 11, Seiten: 5536-5546 Artikelnummer: , Supplement: ,
Verlag ACS
Verlagsort Washington, DC
Begutachtungsstatus Peer reviewed
POF Topic(s) 30202 - Environmental Health
20403 - Sustainable Water Management
Forschungsfeld(er) Environmental Sciences
PSP-Element(e) G-504800-001
G-504300-006
G-504300-002
PubMed ID 27152868
Scopus ID 84973659559
Erfassungsdatum 2016-05-24