Full texts for most of these publications are available on ResearchGate. Do not hesitate to contact David ( if one is not available. 

Podgorski, D.C.; Zito, P.; Kellerman, A.M.; Bekins, B.A.; Cozzarelli, I.M.; Smith, D.F.; Cao, X.; Schmidt-Rohr, K.; Wagner, S.; Stubbins, A.; Spencer, R.G.M., Hydrocarbons to Carboxyl-Rich Alicyclic Molecules: A Continuum Model to Describe Biodegradation of Petroleum-Derived Dissolved Organic Matter in Contaminated Groundwater Plumes, J. Haz. Mat., doi:10.1016/j.jhazmat.2020.123998

Zherebker, A., Kim, S., Schmitt-Kopplin, P., Spencer, R.G.M., Lechtenfeld, O., Podgorski, D.C., Hertkorn, N., Harir, M., Nurfajin, N., Koch, B., Nikolaev, E.N., Shirshin, E.A., Berezin, S.A., Kats, D.S., Rukhovich, G.D., & Perminova, I.V. (2020). Interlaboratory Comparison of Humic Substances Compositional Space as Measured by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (IUPAC Technical Report), Pure Appl. Chem., doi: 10.1515/pac-2019-0809

Casas-Ruiz, J.P.; Spencer, R.G.M.; Guillemette, F.; von Schiller, D.; Obrador, B.; Podgorski, D.C.; Kellerman, A.M.; Hartmann, J.; Gómez-Gener, L.; Sabater, S.; Marcé, R. (2020), Delineating the Continuum of Dissolved Organic Matter in Temperate River Networks., Global Biogeochem. Cycles, 34 (8), DOI:10.1029/2019GB006495

Leewis, M.C.; Berlemont, R.; Podgorski, D.C.; Srinivas, A.; Zito, P.; Spencer, R.G.M.; McFarland, J.; Douglas, T.A.; Conaway, C.H.; Waldrop, M.; Mackelprang, R. (2020), Life at the Frozen Limit: Microbial Carbon Metabolism Across a Late Pleistocene Permafrost Chronosequence. Front. Microbiol., DOI: 10.3389/fmicb.2020.01753

Hawkes, J.A.; D’Andrilli, J.; Sleighter, R.L.; Chen, H.; Hatcher, P.G.; Ijaz, A.; Khaksan, M.; Schum, S.; Mazzoleni, L.; Chu, R.; Tolic, N.; Kew, W.; Hess, N.; Lv, J.; Zhang, S.; Chen, H.; Shi, Q.; Hutchins, R.H.S.; Lozano, D.C.P.; Gavard, R.; Jones, H.E.; Thomas, M.J.; Barrow, M.; Osterholz, H.; Dittmar, T.; Simon, C.; Gleixner, G.; Berg, S.M.; Remucal, C.K.; Catalán, N.; Cole, R.B.; Noreiga-Ortega, B.; Singer, G.; Radoman, N.; Schmitt, N.D.; Stubbins, A.; Agar, J.N.; Zito, P.; Podgorski, D.C. (2020), An International Laboratory Comparison of Dissolved Organic Matter Composition by High Resolution Mass Spectrometry: Are We Getting the Same Answer? Limnol. Oceanogr-Meth., 18 (6), 235-258

Rodriguez-Cardona, B.M.; Coble, A.A.; Wymore, A.S.; Kolosov, R.; Podgorski, D.C.; Zito, P.; Spencer, R.G.M.; Prokushkin, A.S.; McDowell, W.H., (2020). Wildfires Lead to Decreased Carbon and Increased Nitrogen Concentrations in Upland Arctic Streams. Sci. Rep. 10, 8722, DOI: 10.1038/s41598-020-65520-0

Zito, P.; Podgorski, D.C.; Bartges, T.; Guillemette, F.; Roebuck, A.; Spencer, R.G.M.; Rodgers, R.P.; Tarr, M.A., (2020). Sunlight-Induced Molecular Progression of Oil into Oxidized Oil Soluble Species, Interfacial Material, and Dissolved Organic Matter. Energy Fuels, 34 (4), 4721–4726

Johnston, S.E.; Striegel, R.G.; Bulygina, E.; Bogard M.J.; Dornblaser, M.M; Butman, D.E.; Kellerman, A.M.; Wickland, K.P.; Podgorski, D.C.; Spencer, R.G.M., (2020). Hydrologic Connectivity Determines Dissolved Organic Matter Biogeochemistry in Northern High‐Latitude Lakes, Limnol. Oceanogr., 65 (8), 1764-1780

Kellerman, A.M.; Arellano, A.; Podgorski, D.C.; Martin, E.E.; Martin, J.B.; Deuerling, K.M.; Bianchi, T.S.; Spencer, R.G.M., (2019). Fundamental Drivers of Dissolved Organic Matter Composition Across an Arctic Effective Precipitation Gradient. Limnol. Oceanogr., 65 (6), 1217-1234

Drake, T.W.; Podgorski, D.C.; Dinga, B.; Chanton, J.; Six, J.; Spencer, R.G.M., 2019. Land‐Use Controls on Carbon Biogeochemistry in Lowland Streams of the Congo Basin, Global Change Biol., 26 (3), 1374-1389

Textor, S.; Wickland, K.; Podgorski, D.C.; Johnston, S.E.; Spencer, R.G.M., (2019). Dissolved Organic Carbon Turnover in Permafrost-Influenced Watersheds of Interior Alaska: Molecular Insights and the Priming Effect, Front. Earth Sci., DOI: 10.3389/feart.2019.00275

Zhou, Y.: Zhou, L.; Zhang, Y.; Garcia de Souza, J.; Podgorski, D.C.; Spencer, R.G.M.; Jeppesen, E.; Davidson, T.A., (2019). Autochthonous Dissolved Organic Matter Potentially Fuels Methane Ebullition from Experimental Lakes, Water Res., 166, DOI: 10.1016/j.watres.2019.115048

Zito, P.; Ghannam, R.; Bekins, B.A.; Podgorski, D.C., (2019). Examining the Extraction Efficiency of Petroleum‐Derived Dissolved Organic Matter in Contaminated Groundwater Plumes, Ground Water Monit. R., 39 (4), 25-31

Zherebker, A.; Podgorski, D.C.; Kholodov, V.; Orlov, A.; Yaroslavtseva, N.V.; Kharybin, O.N.; Kholodov, A.; Spector, V.; Spencer, R.G.M.; Nikolaev, E.N.; Perminova, I.V., (2019). The Molecular Composition of Humic Substances Isolated From Yedoma Permafrost and Alas Cores in the Eastern Siberian Arctic as Measured by Ultrahigh Resolution Mass Spectrometry, J. Geophys. Res-Biogeo., 124 (8), 2432-2445.

Drake, T.W.; Van Oost, K.; Barthel, M.; Bauters, M.; Hoyt, A.M.; Podgorski, D.C.; Six, J.; Boeckx, P.; Trumbore, S.E.; Cizungu Ntaboba, L.; Spencer, R.G.M., (2019). Mobilization of Aged and Biolabile Soil carbon by Tropical Deforestation, Nat. Geosci., 12 (7), 541-546

Heslop, J.K.; Winkel, M.; Walter Anthony, K.M.; Spencer, R.G.M.; Podgorski, D.C.; Zito, P.; Kholodov, A.; Zhang, M.; Liebner, S., (2019). Increasing Organic Carbon biolability with Depth in Yedoma Permafrost: Ramifications for Future Climate Change, J. Geophys. Res-Biogeo., 124 (7), 2021-2038

Zito, P.; Podgorski, D.C.; Johnson, J.T.; Chen H.; Rodgers, R.P.; Guillemette, F.; Kellerman, A.M.; Spencer, R.G.M.; Tarr, M.A., (2019). The Molecular-Level Composition and Acute Toxicity of Photosolubilized Petrogenic Carbon, Envrion. Sci. Technol., 53 (14), 8235-8243

Spencer, R.G.M.; Kellerman, A.M.; Podgorski, D.C.; Macedo, M.N.; Jankowski, K.; Nunes, D.; Neill. C., (2019). Identifying the Molecular Signatures of Agricultural Expansion in Amazonian Headwater Streams, J. Geophys. Res-Biogeo., 124 (6), 1637-1650

Zhou, Y.; Li, Y.; Yao, X.; Ding, W.; Jeppesen, E.; Zhang Y.; Zhang, Y.; Podgorski, D.C.; Shi, K.; Chen, C.; Ding, Y.; Huang, J.; Spencer, R.G.M., (2019). Response of Chromophoric Dissolved Organic Matter Dynamics to Tidal Oscillations and Anthropogenic Disturbances in a Large Subtropical Estuary, Sci. Total Environ., 662, 769-778

Wang, Y.; Spencer, R.G.M.; Podgorski, D.C.; Kellerman, A.K.; Rashid, H.; Zito, P.; Xiao, W.; Wei, D.; Yang, Y.; Xu, Y., (2018). Spatiotemporal Transformation of Dissolved Organic Matter along an Alpine Stream Flowpath on the Qinghai-Tibetan Plateau: Importance of Source and Permafrost Degradation, Biogeosciences, 15, 6637-6648

Hemingway, J.D.; Spencer, R.G.M.; Podgorski, D.C.; Zito, P.; Sen, I.S.; Galy, V.V., (2018). Glacier Meltwater and Monsoon Precipitation Drive Upper Ganges Basin Dissolved Organic Matter Composition, Geochim. Cosmochim. Acta, 244, 216-228

Luzius, C.; Guillemette, F.; Podgorski, D.C.; Kellerman, A.M.; Spencer, R.G.M., (2018). Drivers of Dissolved Organic Matter in the Vent and Major Conduits of the World’s Largest Freshwater Spring, J. Geophys. Res-Biogeo., 123 (9), 2775-2790

Zhou, Y.; Xiao, Q.; Yao, X.; Zhang, Y.; Zhang, M.; Shi, K.; Lee, X.; Podgorski, D.C.; Qin, B.; Spencer, R.G.M.; Jeppesen, E., (2018). Accumulation of Terrestrial Dissolved Organic Matter Potentially Enhances Dissolved Methane Levels in Eutrophic Lake Taihu, China, Envrion. Sci. Technol., 52 (18), 10297-10306

Podgorski, D.C.; Zito, P.; McGuire, J.T.; Martinovic-Weigelt, D.; Cozzarelli, I.M.; Bekins, B.A.; Spencer, R.G.M., (2018). Examining Natural Attenuation and Acute Toxicity of Petroleum-Derived Dissolved Organic Matter with Optical Spectroscopy, Envrion. Sci.Technol., 52 (11), 6157-6166

Drake, T.W.; Guillemette, F.; Hemingway, J.D.; Chanton J.P.; Podgorski, D.C.; Simov, N.S.; Spencer, R.G.M., (2018). The Ephemeral Signature of Permafrost Carbon in an Arctic Fluvial Network, J. Geophys. Res-Biogeo., 123 (5), 1475-1485

Johnston, S.E.; Shorina, N.; Bulygina, E.; Ershova, A.A.; Kellerman, A.M.; Guillemette, F.; Shiklomanov, A.; Podgorski, D.C.; Spencer, R.G.M., (2018). Flux and Seasonality of Dissolved Organic Matter from the Northern Dvina (Severnaya Dvina) River, Russia, J. Geophys. Res-Biogeo., 123 (3), 1041-1056

Wang, Y.; Xu, Y.; Spencer, R.G.M.; Zito, P.; Kellerman, A.K.; Podgorski, D.C.; Xiao, W.; Wei, D.; Rashid, H.; Yang, Y., (2018). Selective Leaching of Dissolved Organic Matter from Alpine Permafrost Soils on the Qinghai-Tibetan Plateau, J. Geophys. Res-Biogeo., 123 (3), 1005-1016

Zhou, Y.; Yao, X.; Zhang, Y.; Zhang, Y.; Jeppesen, E.; Shi, K.; Tang, X.; Qin, B.; Podgorski, D.C.; Brookes, J.D., (2018). Response of Dissolved Organic Matter Optical Properties to Net Inflow Runoff in a Large Fluvial Plain Lake and the Connecting Channels, Sci. Total Environ., 639, 876-887

Kellerman, A.K.; Guillemette, F.; Podgorski, D.C.; Aiken, G.R.; Butler, K.D.; Spencer, R.G.M., (2018). Unifying Concepts Linking Dissolved Organic Matter Composition to Persistence in Aquatic Ecosystems, Envrion. Sci. Technol., 52 (5), 2538-2548

Smith, D.F.; Podgorski, D.C.; Rodgers, R.P.; Blakney, G.T.; Hendrickson, C.L., (2018). 21 Tesla FT-ICR Mass Spectrometer for Ultrahigh-Resolution Analysis of Complex Organic Mixtures, Anal. Chem., 90 (3), 2041-2047

Bauters, M., Drake, T.W.; Verbeeck, H.; Bodé, S.; Hervé-Fernández, P.; Zito, P.; Podgorski, D.C.; Boyemba, F.; Makelele, I.; Ntaboba, L.C.; Spencer, R.G.M.; Boeckx, P., (2018). High Fire-Derived Nitrogen Deposition on Central African Forests, Proc. Natl. Acad. Sci., 115 (3), 549-554

Putman, J.C.; Rowland, S.M.; Podgorski, D.C.; Robbins, W.K.; Rodgers, R.P., (2017). Dual-Column Aromatic Ring Class Separation with Improved Universal Detection across Mobile-Phase Gradient via Eluate Dilution, Energy Fuel, 31, 12064-12071

Roebuck, A.J., Jr.; Podgorski, D.C.; Wagner, S.; Jaffé, R., (2017). Photodissolution of Charcoal and Fire-Impacted Soil as a Potential Source of Dissolved Black Carbon in Aquatic Environments, Org. Geochem., 112, 16-21

Harriman, B.H.; Zito, P.; Podgorski, D.C.; Tarr, M.A.; Suflita, J.M., (2017). Impact of Photooxidation and Biodegradation on the Fate of Oil Spilled During the Deepwater Horizon Incident: Advanced Stages of Weathering, Environ. Sci. Technol., 51, 7412-7421

Pisani, O.; Boyer, J.N.; Podgorski, D.C.; Thomas, C.R.; Coley, T.; Jaffé, R., (2017). Molecular Composition and Bioavailability of Dissolved Organic Nitrogen in a Lake Flow-Influenced River in South Florida, USA, Aquat. Sci., 1-18

Cawley, K.M.; Kohner, A.K.; Podgorski, D.C.; Cooper, W.T.; Korak, J.A.; Rosario-Ortiz, F.L., (2017). Molecular and Spectroscopic Characterization of Water Extractable Organic Matter from Soils Exposed to Simulated Wildfire Conditions Reveal Insight into Disinfection Byproduct Precursors, Environ. Sci. Technol., 51, 771-759

O’Donnell, J.A.; Aiken, G.R.; Butler, K.D.; Guillemette, F.; Podgorski, D.C.; Spencer, R.G.M., (2016). DOM Composition and Transformation in Boreal Forest Soils: The Effects of Temperature and Organic‐Horizon Decomposition State, J. Geophys. Res-Biogeo., 121, 2727-2744

Hodgkins, S.B.; Tfaily, M.M.; Podgorski, D.C.; McCalley, C.K.; Saleska, S.R.; Crill, P.A.; Rich, VI.; Chanton, J.P.; Cooper, W.T., (2016). Elemental Composition and Optical Properties Reveal Changes in Dissolved Organic Matter along a Permafrost Thaw Chronosequence in a Subartic Peatland, Geochim. Cosmochim. Acta, 187, 123-140

Mosher, J.J.; Kaplan, L.A.; Podgorski, D.C.; McKenna, A.M.; Marshall, A.G., (2015). Longitudinal Shifts in Dissolved Organic Matter Chemogeography and Chemodiversity Within Headwater Streams: A River Continuum Reprise, Biogeochemistry, 124 (1), 371-385

Mead, R.N.; Felix, J.D.; Avery, G.B.; Kieber, R.J.; Willey, J.D.; Podgorski, D.C., (2015). Characterization of CHOS Compounds in Rainwater from Continental and Coastal Storms by Ultrahigh Resolution Mass Spectrometry, Atmos. Environ., 105, 162-168

Ray, P.Z.; Chen, H.; Podgorski, D.C.; McKenna, A.M.; Tarr, M.A., (2014). Sunlight Creates Oxygenated Species in Water-Soluble Fractions of Deepwater Horizon Oil, J. Hazard. Mater., 280, 636-643

Lemkau, K.L.; McKenna, A.M.; Podgorski, D.C.; Rodgers, R.P.; Reddy, C.M., (2014) Molecular Evidence of Heavy-Oil Weathering Following the M/V Cosco Busan Spill: Insights from Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Environ. Sci. Technol., 48 (7), 3760-3767

Corilo, Y.E.; Podgorski, D.C.; McKenna, A.M.; Lemkau, K.L.; Reddy, C.M.; Marshall, A.G.; Rodgers, R.P., (2013) Oil Spill Source Identification by Principal Component Analysis of Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectra, Anal. Chem., 85 (19), 9064-9069

Podgorski, D.C.; Corilo, Y.E.; Nyadong, L.; Lobodin, V.V; Robbins, W.K.; McKenna, A.M.; Marshall, A.G.; Rodgers, R.P., (2013). Heavy Petroleum Composition 5: The Compositional and Structural Continuum of Petroleum Revealed, Energy Fuel, 27, 1268-1276

Mead, R.N.; Mullaugh, K.; Avery, G.B.; Kieber, R.J.; Willey, J.D.; Podgorski, D.C., (2013). Insights Into Dissolved Organic Matter Complexity in Rainwater from Continental and Coastal Storms by Ultrahigh Resolution Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Atmos. Chem. Phys., 13, 4829-4838

Osborne, D.M.; Podgorski, D.C.; Roberts, Q.; Bronk, D.A.; Austin, D.; Spiler, R.; Bays, J.; Cooper, W.T., (2013). Molecular-Level Characterization of Reactive and Refractory Dissolved Organic Nitrogen Compounds by Atmospheric Pressure Photoionization Coupled to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Rapid Commun. Mass Sp., 27, 851-858

Jaffé, R.; Yamashita, Y.; Maie, N.; Cooper, W.T; Dittmar, T.; Dodds, W.K.; Jones, J.B.; Myoshi, T.; Ortiz-Zayas, J.R; Podgorski, D.C.; Watanabe, A., (2012). Dissolved Organic Matter in Headwater Streams: Compositional Variability Across Climatic Regions of North America, Geochim. Cosmochim. Acta, 94, 95-108

Podgorski, D. C.; McKenna, A. M.; Rodgers, R. P.; Marshall, A. G. (2012). Selective Ionization of Dissolved Organic Nitrogen by Positive Ion Atmospheric Pressure Photoionization Coupled with Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Anal. Chem., 84 (11), 5085-5090

Tfaily, M.M.; Hodgkins, S.; Podgorski, D.C.; Chanton J.P.;Cooper, W.T., (2012). Comparison of Dialysis and Solid-Phase Extraction for Isolation and Concentration of Dissolved Organic Matter Prior to Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Anal. Bioanal. Chem., 404 (2), 447-457

Podgorski, D.C.; Hamdan, R.; McKenna, A.M.; Nyadong, L.; Rodgers, R.P.; Marshall, A.G.; Cooper, W.T., (2012). Characterization of Pyrogenic Black Carbon by Desorption Atmospheric Pressure Photoionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Anal. Chem., 84 (3), 1281-1287

Tfaily, M.M.; Podgorski, D.C.; Corbett, J.E.; Chanton, J.P.; Cooper, W.T., (2011). Influence of acidification on the optical properties and molecular composition of dissolved organic matter, Anal. Chim. Acta, 706 (2), 261-267

Gonsior, M.; Peake, B.M.; Cooper, W.T.; Podgorski, D.C.; D’Andrilli, J.; Dittmar, T.; Cooper, W.J., (2010). Characterization of Dissolved Organic Matter Across the Subtropical Convergence Off the South Island, New Zealand, Mar. Chem., 123 (1-4), 99-110

Chipman, L.; Podgorski, D.C.; Green, S.; Kostka, J.; Cooper, W.T.; Huettel, M., (2010). Decomposition of Plankton-Derived Dissolved Organic Matter in Permeable Coastal Sediments, Limnol. Oceanogr., 55 (2), 857-871

Gonsior, M.; Peake, B.M.; Cooper, W.T.; Podgorski, D.C.; D’Andrilli, J.; Cooper, W.J., (2009). Photochemically Induced Changes in Dissolved Organic Matter Identified by Ultrahigh Resolution Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, Environ. Sci. Technol., 43 (3), 698-703