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    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
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Cited By
					
					Cited By
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				5.393
					1.718
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        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