Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Geochemistry of dissolved organic matter in a spatially highly resolved goundwater petroleum hydrocarbon plume cross-section.
Environ. Sci. Technol. 50, 5536-5546 (2016)
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
Times Cited
Scopus
Cited By
Cited By
Altmetric
5.393
1.718
35
48
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
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
Zeitschrift
Environmental Science & Technology
Quellenangaben
Band: 50,
Heft: 11,
Seiten: 5536-5546
Verlag
ACS
Verlagsort
Washington, DC
Begutachtungsstatus
Peer reviewed
Institut(e)
Research Unit BioGeoChemistry and Analytics (BGC)
Institute of Groundwater Ecology (IGOE)
Institute of Groundwater Ecology (IGOE)
POF Topic(s)
30202 - Environmental Health
20403 - Sustainable Water Management
20403 - Sustainable Water Management
Forschungsfeld(er)
Environmental Sciences
PSP-Element(e)
G-504800-001
G-504300-006
G-504300-002
G-504300-006
G-504300-002
PubMed ID
27152868
WOS ID
WOS:000377629900016
Scopus ID
84973659559
Erfassungsdatum
2016-05-24