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Investigating the effect of oil spills
on the environment and public health.
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Christopher M. Reddy

Woods Hole Oceanographic Institution

Coastal Ocean Institute and Department of Marine Chemistry and Geochemistry

266 Woods Hole Road
Woods Hole , MA  02543  

creddy@whoi.edu

Project List:

The State-of-the-Art Unraveling of the Biotic and Abiotic Chemical Evolution of Macondo Oil: 2010-2018.

Year 6-8 Investigator Grants (RFP-V)Role: Co-Principal Investigator

Center for the Integrated Modeling and Analysis of Gulf Ecosystems II (C-IMAGE II)

Year 5-7 Consortia Grants (RFP-IV)Role: Co-Principal Investigator, Task Co-Lead

Deepsea to Coast Connectivity in the Eastern Gulf of Mexico (DEEP-C)

Year 2-4 Consortia Grants (RFP-I)Role: Co-Principal Investigator, Task Co-Lead

Collection and Analysis of Oiled Sand Patties along the Gulf Coast

Bridge Grants (RFP-III)Role: Principal Investigator

Publications & Presentations:

Journal Articles - 30

2022

Wise, S. A., Rodgers, R. P., Reddy, C. M., Nelson, R. K., Kujawinski, E. B., Wade, T. L., et al. (2022). Advances in Chemical Analysis of Oil Spills Since the Deepwater Horizon Disaster. Critical Reviews in Analytical Chemistry, . doi

2020

Ward, C., Reddy, C., & Overton, E. (2020). Why Sunlight Matters for Marine Oil Spills. Eos, 101. doi

2019

Ward, C. P., Sharpless, C. M., Valentine, D. L., Aeppli, C., Sutherland, K. M., Wankel, S. D., et al. (2019). Oxygen Isotopes (δ18O) Trace Photochemical Hydrocarbon Oxidation at the Sea Surface. Geophys. Res. Lett., 46(12), 6745–6754. doi

2018

Aeppli, C., Swarthout, R. F., O'Neil, G. W., Katz, S. D., Nabi, D., Ward, C. P., et al. (2018). How Persistent and Bioavailable Are Oxygenated Deepwater Horizon Oil Transformation Products? Environmental Science & Technology, 52(13), 7250–7258. doi
Bostic, J. T., Aeppli, C., Swarthout, R. F., Reddy, C. M., & Ziolkowski, L. A. (2018). Ongoing biodegradation of Deepwater Horizon oil in beach sands: Insights from tracing petroleum carbon into microbial biomass. Marine Pollution Bulletin, 126, 130–136. doi
Ward, C. P., Armstrong, C. J., Conmy, R. N., French-McCay, D. P., & Nelson, R. K., Carmichael, C.A., Reddy, C.M., Aeppli, C., Kellerman, M.Y., Valentine, D.L. (2018). Photochemical Oxidation of Oil Reduced the Effectiveness of Aerial Dispersants Applied in Response to the_Deepwater Horizon Spill. Environ. Sci. Technol. Lett., 5(5), 226–231. doi
Ward, C. P., Sharpless, C. M., Valentine, D. L., French-McCay, D. P., Aeppli, C., White, H. K., et al. (2018). Partial Photochemical Oxidation Was a Dominant Fate of_Deepwater Horizon Surface Oil. Environ. Sci. Technol., 52(4), 1797–1805. doi

2017

Gros, J., Socolofsky, S. A., Dissanayake, A. L., Jun, I., Zhao, L., Boufadel, M. C., et al. (2017). Petroleum dynamics in the sea and influence of subsea dispersant injection during Deepwater Horizon. Proc Natl Acad Sci USA, 114(38), 10065–10070. doi

2016

Beaudoin, D. J., Carmichael, C. A., Nelson, R. K., Reddy, C. M., Teske, A. P., & Edgcomb, V. P. (2016). Impact of protists on a hydrocarbon-degrading bacterial community from deep-sea Gulf of Mexico sediments: A microcosm study. Deep Sea Research Part II: Topical Studies in Oceanography, 129, 350–359. doi
Gros, J., Reddy, C. M., Nelson, R. K., Socolofsky, S. A., & Arey, J. S. (2016). Simulating Gas-Liquid-Water Partitioning and Fluid Properties of Petroleum under Pressure: Implications for Deep-Sea Blowouts. Environ. Sci. Technol., 50(14), 7397–7408. doi
Tarr, M. A., Zito, P., Ray P.Z., Overton, E. B., Olson G.M., Adhikari, P. L., et al. (2016). Weathering of oil spilled in the marine environment. Oceanog, 29(3), 126–135. doi
White, H. K., Conmy, R. N., MacDonald, I. R., & Reddy, C. M. (2016). Methods of Oil Detection in response to the Deepwater Horizon oil spill. Oceanog, 29(3), 76–87. doi
White, H. K., Wang, C. H., Williams, P. L., Findley, D. M., Thurston, A. M., Simister, R. L., et al. (2016). Long-term weathering and continued oxidation of oil residues from the Deepwater Horizon spill. Marine Pollution Bulletin, 113(1-2), 380–386. doi

2015

Koolen, H. H. F., Swarthout, R. F., Nelson, R. K., Chen, H., Krajewski, L. C., Aeppli, C., et al. (2015). Unprecedented Insights into the Chemical Complexity of Coal Tar from Comprehensive Two-Dimensional Gas Chromatography Mass Spectrometry and Direct Infusion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Energy Fuels, 29(2), 641–648. doi

2014

Aeppli, C., Nelson, R. K., Carmichael, C. A., Valentine, D. L., & Reddy, C. M. (2014). Biotic and abiotic oil degradation after the Deepwater Horizon disaster leads to formation of recalcitrant oxygenated hydrocarbons: New insights using GCxGC. International Oil Spill Conference Proceedings, 2014(1), 1087–1098. doi
Aeppli, C., Nelson, R. K., Radovic, J. R., Carmichael, C. A., Valentine, D. L., & Reddy, C. M. (2014). Recalcitrance and Degradation of Petroleum Biomarkers upon Abiotic and Biotic Natural Weathering ofDeepwater HorizonOil. Environ. Sci. Technol., 48(12), 6726–6734. doi
Gros, J., Reddy, C. M., Aeppli, C., Nelson, R. K., Carmichael, C. A., & Arey, J. S. (2014). Resolving Biodegradation Patterns of Persistent Saturated Hydrocarbons in Weathered Oil Samples from the Deepwater Horizon Disaster. Environ. Sci. Technol., 43(3), 1628–1637. doi
Gros, J. J., Nabi, D., Wurz, B., Wick, L. Y., Brussard, C. P. D., Huisman, J., et al. (2014). First Day of an Oil Spill on the Open Sea: Early Mass Transfers of Hydrocarbons to Air and Water. Environ. Sci. Technol., 48(16), 9400–9411. doi
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/VCosco BusanSpill: Insights from Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Environ. Sci. Technol., 48(7), 3760–3767. doi
McKenna, A. M., Williams, J. T., Putman, J. C., Aeppli, C., Reddy, C. M., Valentine, D. L., et al. (2014). Unprecedented Ultrahigh Resolution FT-ICR Mass Spectrometry and Parts-Per-Billion Mass Accuracy Enable Direct Characterization of Nickel and Vanadyl Porphyrins in Petroleum from Natural Seeps. Energy Fuels, 28(4), 2454–2464. doi
McKenna, A. M., Williams, J. T., Putman, J. C., Aeppli, C. M., Reddy, C. M., Valentine, D. L., et al. (2014). Biodegradation at the Seafloor: Ultrahigh Resolution FT-ICR Mass Spectral Characterization of Natural Petroleum Seeps. International Oil Spill Conference Proceedings, 2014(1), 2083–2097. doi
Radovic, J. R., Aeppli, C., Nelson, R. K., Jimenez, N., Reddy, C. M., Bayona, J. M., et al. (2014). Assessment of photochemical processes in marine oil spill fingerprinting. Marine Pollution Bulletin, 79(1-2), 268–277. doi
Ruddy, B. M., Huettel, M., Kostka, J. E., Lobodin, V. V., Bythell, B. J., McKenna, A. M., et al. (2014). Targeted Petroleomics: Analytical Investigation of Macondo Well Oil Oxidation Products from Pensacola Beach. Energy Fuels, 28(6), 4043–4050. doi

2013

Aeppli, C., Reddy, C. M., Nelson, R. K., Kellermann, M. Y., & Valentine, D. L. (2013). Recurrent Oil Sheens at the Deepwater Horizon Disaster Site Fingerprinted with Synthetic Hydrocarbon Drilling Fluids. Environ. Sci. Technol., 47(15), 8211–8219. doi
Corilo, Y. E., Podgorski, D. C., McKenna, A. M., Lemkau, K. L., Reddy, C. M., Marshall, A. G., et al. (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. doi
Hall, G. J., Frysinger, G. S., Aeppli, C., Carmichael, C. A., Gros, J., Lemkau, K. L., et al. (2013). Oxygenated weathering products of Deepwater Horizon oil come from surprising precursors. Marine Pollution Bulletin, 75(1-2), 140–149. doi
McKenna, A. M., Nelson, R. K., Reddy, C. M., Savory, J. J., Kaiser, N. K., Fitzsimmons, J. E., et al. (2013). Expansion of the Analytical Window for Oil Spill Characterization by Ultrahigh Resolution Mass Spectrometry: Beyond Gas Chromatography. Environ. Sci. Technol., 47(13), 7530–7539. doi
White, H. K., Xu, L., Hartmann, P., Quinn, J. G., & Reddy, C. M. (2013). Unresolved Complex Mixture (UCM) in Coastal Environments Is Derived from Fossil Sources. Environ. Sci. Technol., 47(2), 726–731. doi

2012

Aeppli, C., Carmichael, C. A., Nelson, R. K., Lemkau, K. L., Graham, W. M., Redmond, M. C., et al. (2012). Oil weathering after the Deepwater Horizon disaster led to the formation of oxygenated residues. Environmental Science & Technology, 46(16), 8799–8807. doi
Camilli, R., Bowen, A., Reddy, C. M., Seewald, J. S., & Yoerger, D. R. (2012). When Scientific Research and Legal Practice Collide. Science, 337(6102), 1608–1609. doi

Book Chapter - 1

2015

Eiserbeck, C., Nelson, R. K., Reddy, C. M., & Grice, K. (2015). Advances in Comprehensive Two-Dimensional Gas Chromatography (GCxGC). In Principles and Practice of Analytical Techniques in Geosciences (pp. 324–365). doi

Conference Presentations - 111

2019

Radovic, J., Jaggi, A., Lincoln, S., Romero, I. C., Nelson, R., Schwing, P. T., et al. (2019). Comprehensive Analytical Approaches to Spill Characterization: Case Studies and Examples. In 2019 Gulf of Mexico Oil Spill and Ecosystem Sciences Conference. New Orleans, LA : 02/04/19-02/07/19. openurl
Reddy, C., & Nelson, R. K. (2019). The usage of comprehensive two-dimensional gas chromatography following the Deepwater Horizon disaster. In 2019 Gulf of Mexico Oil Spill and Ecosystem Sciences Conference. New Orleans, LA : 02/04/19-02/07/19. openurl

2018

Armstrong, C. J., Ward, C. P., & Reddy, C. M. (2018). Photochemical oxidation reduces the efficacy of chemical dispersants applied in response to oil spills. In 255th ACS National Meeting & Exposition. New Orleans, LA : 03/18/18-03/22/18: Poster. openurl
Reddy, C. M., & Ward, C. P. (2018). The production of spillphatenes following the 2010 Deepwater Horizon disaster. In 255th ACS National Meeting & Exposition. New Orleans, LA : 03/18/18-03/22/18. openurl
Sharpless, C. M., & Reddy, C. M. (2018). Apparent Quantum Yields of Singlet Oxygen and Photochemical Oxygen Consumption for Crude Oils. In 255th ACS National Meeting & Exposition. New Orleans, LA : 03/18/18-03/22/18: Poster. openurl
Ward, C. P., Armstrong, C. J., French-McCay, D. P., Conmy, R., & Reddy, C. M. (2018). Photochemical oxidation reduces the efficacy of aerial dispersants applied in response to oil spills. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2018. New Orleans, LA : 02/05/18-02/08/18. openurl
Ward, C. P., Reddy, C. M., & Cory, R. M. (2018). Evaluating the magnitude of partial photo-oxidation of organic carbon in sunlit surface waters. In 255th ACS National Meeting & Exposition. New Orleans, LA : 03/18/18-03/22/18. openurl
Ward, C. P., Sharpless, C. M., Aeppli, C., Valentine, D. L., French-McCay, D. P., White, H., et al. (2018). Partial photochemical oxidation was a dominant fate of Deepwater Horizon surface oil. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2018. New Orleans, LA : 02/05/18-02/08/18. openurl

2017

Gros, J., Socolofsky, S. A., Dissanayake, A. L., Jun, I., Zhao, L., Boufadel, M. C., et al. (2017). Detailed modeling of the dynamic behavior of petroleum in the sea during the Deepwater Horizon accident. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17. openurl
Lemkau, K., Aeppli, C., Carmichael, C., Reddy, C., Swarthout, R., & White, H. (2017). Lessons Learned from Hurricane Isaac, 2012: False Positives and Weathering of Oil from the Deepwater Horizon spill. In Goldschmidt 2017. Paris, France : 08/13/17-08/18/17. openurl
Overton, E., & Reddy, C. M. (2017). Understanding what happens to the composition of crude oils spilled in marine environments. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17. openurl
Reddy, C. (2017). When a naval officer emails for help on how to sink a ship. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17. openurl
Reddy, C., Gosselin, K., Nelson, R., Sylva, S., Aeppli, C., Sharpless, C., et al. (2017). A Biogenic Input of Heptadecane in Surface Waters Prior to and during the Anthropocene. In Goldschmidt 2017. Paris, France : 08/13/17-08/18/17. openurl
Reddy, C. M. (2017). Am I wrong or should more work be done on the formation of oxygenated hydrocarbons? In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17. openurl
Ward, C. P., & Reddy, C. M. (2017). Assessing the contribution of photochemical processes to the formation of oxidized hydrocarbons following the Deepwater Horizon oil spill: Insights from preliminary laboratory experiments. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17. openurl
Ward, C. P., & Reddy, C. M. (2017). Characterizing the role of photochemical processes in the oxidation of hydrocarbons released during the Deepwater Horizon disaster. In 253rd American Chemical Society National Meeting & Exposition. San Francisco, CA : 04/02/17-04/06/17. openurl

2016

Aeppli, C., Prince, R., Radovic, J., & Reddy, C. (2016). Prevalence of oxygenated hydrocarbon as oil degradation products after oil spills. In Ocean Sciences Meeting 2016. New Orleans. LA : 02/21/16-02/26/16: Poster. openurl
Arey, J. S., Gros, J., Socolofsky, S., Dissanayake, A., Jun, I., Nelson, R., et al. (2016). Computer simulation of the buoyant ascent and liquid-gas-water repartitioning of petroleum hydrocarbons in the deep water column during the Deepwater Horizon disaster. In 251st American Chemical Society National Meeting & Exposition. San Diego, CA : 03/13/16-03/17/16. openurl
Chen, H., Aeppli, C., Valentine, D. L., Nelson, R. K., Reddy, C. M., Kellerman, M., et al. (2016). Natural seeps versus human spill: Characterization and comparison of DWH weathered oil with natural petroleum seeps by ultrahigh resolution FT-ICR mass spectrometry. In Ocean Sciences Meeting 2016. New Orleans. LA : 02/21/16-02/26/16: Poster. openurl
Green, H. S., Fuller, S. A., Meyer, A. W., Joyce, P., Aeppli, C., Nelson, R. K., et al. (2016). Tar balls collected in the North Atlantic over the past two decades vary substantially. In 2016 American Geophysical Union Fall Meeting. San Francisco, CA : 12/12/16-12/16/16: Poster. openurl
Gros, J., Reddy, C. M., Nelson, R. K., Socolofsky, S. A., & Arey, J. S. (2016). Thermodynamic modeling of gas-liquid-water partitioning and fluid properties for Macondo reservoir fluid at deep-water conditions. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2016. Tampa, FL : 02/01/16-02/04/16. openurl
Gros, J., Socolofsky, S. A., Dissanayake, A. L., Jun, I., Boufadel, M. C., Zhao, L., et al. (2016). Simulating the aqueous dissolution of petroleum emitted into the Gulf of Mexico during the 2010 Deepwater Horizon disaster. In Gordon Research Conference – Opportunities for Aquatic Sciences to Impact a Changing World. Holderness, NH : 06/26/16-07/01/16: Poster. openurl
Gros, J., Socolofsky, S. A., Dissanayake, A. L., Jun, I., Zhao, L., Boufadel, M. C., et al. (2016). Detailed modeling of the dynamic behavior of petroleum in the sea during the Deepwater Horizon accident. In 2nd Symposium on Deep-Sea Oil Spills. Hamburg, Germany : 09/19/16-09/20/16. openurl
Nelson, R. K., & Reddy, C. M. (2016). Petroleum Analysis and Fingerprinting Using Comprehensive Two-dimensional Gas Chromatography (GCxGC). In 19th Australian Organic Geochemistry Conference. Fremantle, Australia : 12/04/16-12/07/16: Poster. openurl
Reddy, C. (2016). The Anthropocene. In 2016 GRC on Organic Geochemistry. Holderness, NH : 07/23/16-07/28/16. openurl
Rodgers, R. P., Reddy, C. M., & Aeppli, C. A. (2016). The state-of-the-art unraveling of the biotic and abiotic chemical evolution of Macondo Oil: 2010-2018. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2016. Tampa, FL : 02/01/16-02/04/16: Poster. openurl
Sharpless, C., Stewart, O., Walters, M., Swarthout, R., Aeppli, C., & Reddy, C. (2016). Comparison of photooxidation rates and patterns in glass- and water-based oil slick experiments with daily weathering observed in the Gulf of Mexico. In 251th American Chemical Society National Meeting. San Diego, CA : 03/13/16-03/17/16. openurl
Sharpless, C. M., Stewart, O. C., Walters, M., Swarthout, R. F., Aeppli, C., Valentine, D. L., et al. (2016). Comparison of experimental photooxidation rates and patterns in glass- and water-based oil slicks with daily weathering observed in the Gulf of Mexico. In Ocean Sciences Meeting 2016. New Orleans. LA : 02/21/16-02/26/16: Poster. openurl

2015

Gros, J., Nelson, R. K., Reddy, C. M., Socolofsky, S. A., & Arey, J. S. (2015). Predicting The State And Properties Of Deepwater Horizon Oil Under Pressure Using The Peng-Robinson Equation Of State. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15: Poster. openurl
Gros, J., Reddy, C. M., Socolofsky, S. A., & Arey, J. S. (2015). Validating formulas for the prediction of ascent speed and mass transfer coefficient for liquid oil droplets and gas bubbles under pressure. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15: Poster. openurl
Krajewski, L., Chen, H., Corilo, Y. E., Rodgers, R. P., Reddy, C. M., Lemkau, K., et al. (2015). Compositional Comparison of Weathering Trends for Four Different Spills Reveal the Unique Chemical Signature of Deepwater Horizon Oil Contamination. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15. openurl
Krajewski, L. C., Chen, H., Rodgers, R. P., Reddy, C. M., Lemkau, K. T., Aeppli, C., et al. (2015). Compositional Comparison of Weathering Trends for Four Different Oil Spills Determined by Ultrahigh Resolution FT-ICR Mass Spectrometry. In 63rd ASMS Conference on Mass Spectrometry and Allied Topics. St. Louis, MO : 05/31/15-06/04/15. openurl
Marshall, A. G., Corilo, Y. E., Lobodin, V. V., Krajewski, L. C., Aeppli, C., Reddy, C. M., et al. (2015). Anatomy of an Oil Spill and its Subsequent Chemical Evolution by Ultrahigh-Resolution Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. In EnviroAnalysis 2015. Banff, Canada : 07/12/15-07/15/15. openurl
McKenna, A. M., Chen, H., Krajewski, L., Corilo, Y. E., Aeppli, C., Reynolds, J., et al. (2015). Molecular-level identification of metal-containing compounds from oil contamination released from natural seeps and anthropogenic spill. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15. openurl
McKenna, A. M., Chen, H., Krajewski, L., Corilo, Y. E., Aeppli, C., Reynolds, J., et al. (2015). Oil-Dispersants-Sediment Interactions and Weathering/Degradation of Spilled Oil in Gulf of Mexico Ecosystems. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15. openurl
Nelson, R. K., Swarthout, R., Koolen, H., & Reddy, C. M. (2015). GCxGC comparison of Deepwater Horizon crude and Kirby intermediate fuel oil (IFO). In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15: Poster. openurl
Reddy, C., Nelson, R., Koolen, H., Swarthout, R., Aeppli, C., Sharpless, C., et al. (2015). The Oxidation of Macondo well oil: An update and vision. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2015. Houston, TX : 02/16/15-02/19/15. openurl
Socolofsky, S. A., Dissanayake, A. L., Jun, I., Gros, J., Arey, J. S., & Reddy, C. M. (2015). Texas A&M Oilspill Calculator (TAMOC) Modeling Suite for Subsea Spills. In 38th AMOP Technical Seminar on Environmental Contamination and Response. Vancouver, Canada : 06/02/15-06/04/15. openurl

2014

Aeppli, C., Nelson, R. K., Carmichael, C. A., Valentine, D. L., & Reddy, C. M. (2014). Formation of recalcitrant oxygenated hydrocarbons by natural weathering after the Deepwater Horizon disaster. In 2014 International Oil Spill Conference. Savannah, GA : 05/05/14-05/08/14. openurl
Aeppli, C., Nelson, R. K., Kinnaman, F. S., Valentine, D. L., & Reddy, C. M. (2014). Identification of microbial and abiotic degradation of Macondo Well oil at the sea surface and on beaches. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14. openurl
Carmichael, C. A., Nelson, R. K., Aeppli, C., & Reddy, C. M. (2014). Building a comprehensive sample repository to track the long-term impacts of the Macondo well oil spill: An opportunity to engage Citizen Scientists. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl
Gros, J., Reddy, C. M., Aeppli, C., Nelson, R. K., Carmichael, C. A., & Arey, J. S. (2014). A new biodegradation index for weathered oils based on saturated hydrocarbons: insights from the Deepwater Horizon disaster. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl
Gros, J., Arey, J. S.;R., C. M, Aeppli, C., Nelson, R. K., & Carmichael, C. A. (2014). Developing a new saturates biodegradation index for weathered oils, based on samples from the Deepwater Horizon disaster. In Society of Environmental Toxicology and Chemistry (SETAC) Europe – 2014 24th Annual Meeting. Basel, Switzerland: 05/12/14-05/15/14: Poster. openurl
Irvine, G. V., Mann, D. H., Carls, M., Reddy, C. M., Nelson, R. K., & Aeppli, C. (2014). Slightly weathered oil from the Exxon Valdez spill persists on rocky Gulf of Alaska shores after 23 years. In Alaska Marine Science Symposium. Anchorage, AL - 01/21/14. openurl
James, B. D., Reddy, C. M., Aeppli, C., Carmichael, C. A., & Nelson, R. K. (2014). Variability in the hydrocarbon composition of oil films on rocks along the Gulf coast. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl
Kellerman, M. Y., Redmond, M. C., Reddy, C. M., Aeppli, C., Nelson, R. K., & Valentine, D. L. (2014). Oil sheen weathering post-Deepwater Horizon. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl
Kellermann, M. Y., Lemkau, K. L., Reddy, C. M., Aeppli, C., Nelson, R. K., & Valentine, D. L. (2014). Chasing early chemical changes in surface oil slicks. In Goldschmidt 2014 Conference. Sacramento, CA : 06/08/14-06/13/14: Poster. openurl
Lemkau, K. L., Arey, J. S., Nelson, R. K., & Reddy, C. M. (2014). Modelling the effects of evaporation and dissolution for a heavy fuel oil: the M/V Cosco Busan spill. In 2014 International Oil Spill Conference. Savannah, GA : 05/05/14-05/08/14: Poster. openurl
Lemkau, K. L., McKenna, A. M., Podgorski, D. C., Rodgers, R. P., Kujawinski, E. B., & Reddy, C. M. (2014). Molecular evidence of heavy oil degradation following the M/V Cosco Busan spill. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl
MacDonald, I. R., Garcia-Pineda, O., Silva, M., Johansen, C., Reddy, C., & Shedd, W. (2014). Post-Accident Discharge Forensics at the Deepwater Horizon Site, Gulf of Mexico. In Gas in Marine Sediments – 12th International Conference. Taipei, Taiwan : 9/1/14-9/6/14. openurl
McKenna, A. M., Chen, H., Lemkau, K. T., Nelson, R. K., Valentine, D., Reddy, C. M., et al. (2014). Biodegradation at the Seafloor: Ultrahigh Resolution FT-ICR Mass Spectral Characterization of Natural Petroleum Seeps in the Gulf of Mexico. In 2014 International Oil Spill Conference. Savannah, GA : 05/05/14-05/08/14. openurl
Nelson, R. K., Aeppli, C., Carmichael, C. A., & Reddy, C. M. (2014). High resolution forensic analysis of surface sheens helps pinpoint source of oil leakage from the Deepwater Horizon. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl
Nelson, R. K., Aeppli, C., & Reddy, C. M. (2014). High resolution forensic analysis of surface sheens helps pinpoint source of oil leakage from the Deepwater Horizon. In 2014 International Oil Spill Conference. Savannah, GA : 05/05/14-05/08/14: Poster. openurl
Prince, R. C., Butler, J., Nelson, R. K., Reddy, C. M., & Aeppli, C. (2014). NEBA of dispersant use should consider persistent residues formed by competing weathering processes. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl
Reddy, C. M. (2014). Oil sheen weathering post-Deepwater Horizon. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14. openurl
Reddy, C. M. (2014). An Education at Elmer's Island: How I spent $2K on CAT scans. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14. openurl
Reddy, C. M. (2014). Standard reference materials for oil spill research. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14. openurl
Reddy, C. M., & Aeppli, C. (2014). Oil spill fingerprinting: Now and the future. In U.S. Coast Guard's National Pollution Funds Center (NPFC). Arlington, VA : 8/27/2014. openurl
Worton, D. R., Zhang, H., Aeppli, C., Reddy, C. M., Gouw, J.,, Wilson, K. R., et al. (2014). Comprehensive characterization of the formerly 'Unresolved Complex Mixture' reveals evolution of chemical composition during weathering of crude oil in the Gulf Of Mexico. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2014. Mobile, AL: 01/26/14-01/30/14: Poster. openurl

2013

Aeppli C., Nelson, R. K., Carmichael, C. A., Arakawa N., Aluwihare, L. I., Valentine, D. L., et al. (2013). Characterization of recalcitrant oxygenated hydrocarbons formed upon oil weathering after the Deepwater Horizon disaster. In American Chemical Society National Meeting & Exposition. New Orleans, LA, April 10, 2013. url
Aeppli, C. A., Carmichael, C. A., Nelson, R. K., Valentine, D. L., Arakawa, N., Aluwihare, L. I., et al. (2013). Characterization of oxygenated hydrocarbons formed upon oil weathering after the Deepwater Horizon disaster. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013. openurl
Aeppli, C. A., Kellermann, M., Valentine, D. L., Lorenson, T. D., Nelson, R. K., & Reddy, C. M. (2013). Oil spill vs. natural seepage: Contrasting weathering characteristics of oil from the Macondo well and Southern California oil seeps. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
Carmichael, C. A., James, B. D., Aeppli, C., Nelson, R. K., Murphy, E., Radovic, J., et al. (2013). Variability in oiled sand-patties collected: How different are samples collected within meters on a beach? In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
Corilo, Y. E., Podgorski, D. C., McKenna, A. M., Marshall, A. G., Lemkau, K. L., Reddy, C. M., et al. (2013). Oil Spill Source Identification by Principal Component Analysis of Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectra. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013. openurl
Corilo, Y. E., Podgorski, D. C., McKenna, A. M., Rodgers, R. P., Lemkau, K. L., Reddy, C. M., et al. (2013). Oil Spill Source Identification by Principal Component Analysis of Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectra. In American Society of Mass Spectrometry Conference. Minneapolis, MN, June 9-13, 2013: Poster. openurl
Culbertson, J. B., Tripathi, P. B., Butterworth, M. R., Martinson, R. J., Reddy, C. M., & Peacock, E. E. (2013). Reviewing the varied responses of coastal ecosystems to oil spills for evaluating potential. In Ocean Sciences Meeting 2013. New Orleans, LA : 02/17/13-02/22/2013. openurl
Gros, J., Reddy, C. M., Nelson, R. K., & Arey, J. S. (2013). Quantifying composition alteration through biodegradation for Deepwater Horizon oil in surface environments using GCxGC. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013. openurl
Hall, G. J., Frysinger, G. S., Aeppli, C., Carmichael, C. A. G., J., Lemkau, K. L., Nelson, R. K., et al. (2013). Precursors of oxygenated hydrocarbons in weathered oil identified by comprehensive two-dimensional chromatography and chemometric analysis. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
Kellerman, M. Y., Redmond, M. C., Reddy, C. M., Aeppli, C., Nelson, R. K., & Valentine, D. L. (2013). Oil sheen weathering post Deepwater Horizon. In American Geophysical Union Fall Meeting. San Francisco, CA, December 9 - 13, 2013: Poster. openurl
Lemkau, K., White, H. K., & Reddy, C. M. (2013). Characterization of oiled materials collected before and after Hurricane Isaac at Fort Morgan, AL. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
Lemkau, K. L., McKenna, A. M., Podgorski, D. C., Rodgers, R. P., Marshall, A. G., Kujawinski, E. B., et al. (2013). Exploring Environmental Weathering of Oil Spills by Use of Ultrahigh Resolution Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. In North American Fourier Transform Mass Spectrometry Conference. Key West, FL, April 28- May 1, 2013: Poster. openurl
Main, C. E., Nelson, R. K., Aeppli, C., Carmichael, C. A., Lemkau, K. L., & Reddy, C. M. (2013). Comparing laboratory- and field-weathered oil from the Macondo well. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
McKenna, A. M. A., C., Valentine, D. L., Chen, H., Rodgers, R. P., Nelson, R. K., Lemkau, K., et al. (2013). Structural Diversity of Petroporphyrins Isolated from Natural Petroleum Seeps and Weathered Oil by FT-ICR MS. In American Society of Mass Spectrometry Conference. Minneapolis, MN, June 9-13, 2013. openurl
McKenna, A. M., Kaiser, N. K., Hendrickson, C. L., Rodgers, R. P., Reddy, C. M., Nelson, R. K., et al. (2013). Environmental Forensics: Molecular Insight into Oil Spill Weathering Advances High Magnetic Field FT-ICR Mass Spectrometry. In Kavli Foundation Plenary Session, American Phyics Society March Meeting. Baltimore, MD : March 18-22, 2013. openurl
McKenna, A. M., Kaiser, N. K., Hendrickson, C. L., Rodgers, R. P., Reddy, C. M., Nelson, R. K., et al. (2013). Environmental Forensics: Molecular Insight into Oil Spill Weathering Advances High Magnetic Field FT-ICR Mass Spectrometry. In American Physical Society Meeting. Baltimore, MD, March 18-22, 2013. openurl
McKenna, A. M., Lemkau, K. T., Aeppli, C., Carmichael, C. A., Valentine, D. L., Reddy, C. M., et al. (2013). Expanding the Analytical Window of Oil Spill Characterization by FT-ICR Mass Spectrometry: From the Reservoir to the Beach. In American Chemical Society National Meeting. New Orleans, LA, April 7-11, 2013. openurl
McKenna, A. M., Lemkau, K. T., Nelson, R. K., Valentine, D., Reddy, C. M., Marshall, A. G., et al. (2013). Molecular-Level Characterization of Petroleum Seeps and Asphalt Volcanoes from the Santa Barbara Basin by FT-ICR Mass Spectrometry. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013. openurl
McKenna, A. M., Lemkau, K. T., Nelson, R. K., Valentine, D., Reddy, C. M., Xian, F., et al. (2013). Biodegradation at the Seafloor: Ultrahigh Resolution FT-ICR Mass Spectral Characterization of Natural Petroleum Seeps in the Gulf of Mexico. In American Chemical Society National Meeting. New Orleans, LA, April 7-11, 2013. openurl
Nelson, R. K., Carmichael, C. A., Radovic, J. R., Aeppli, C., Main, C. E., & Reddy, C. M. (2013). Advanced petroleum fingerprinting using comprehensive two-dimensional gas chromatography (GCxGC). In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
Radovic, J. R., Aeppli, C., Nelson, R. K., Diez, S., Bayona, J. M., Albaiges, J., et al. (2013). Assessment of photochemical processes in marine oil spill fingerprinting. In EuCheMS International Conference on Chemistry and the Environment ICCE. Barcelona, Spain, June 25, 2013. url
Radovic, J. R., Aeppli, C., Nelson, R. K., Diez, S., Bayona, J. M., & Reddy, C. M. (2013). Photooxidation of triaromatic steroids in Macondo well oil. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
Reddy, C. M., Nelson, R. K., Valentine, D. L., & Kellermann, M. (2013). Analysis of drilling mud in oil sheens by comprehensive 2D gas chromatography. In American Chemical Society National Meeting & Exposition. New Orleans, LA, April 10, 2013. url
Reddy, C. M., & Rodgers, R. (2013). Mainstreaming new methods into oil spill science: What do we need to do? In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013. openurl
Rodgers, R. P., Nyadong, L., Lobodin, V. V., Ruddy, B. M., Podgorski, D. C., McKenna, A. M., et al. (2013). A Petroleomic Approach to Environmental Analytical Chemistry. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013. openurl
Rodgers, R. P., Ruddy, B. M., Nyadong, L., Lobodin, V. V., McKenna, A. M., Marshall, A. G., et al. (2013). Recent Advances in the Analytical Characterization of Petrogenic Material from the Deepwater Horizon Incident. In American Chemical Society National Meeting. New Orleans, LA, April 7-11, 2013. openurl
Ruddy, B. M., Hendrickson, C. L., Lobodin, V. V., Huettel, M., Kostka, J. E., Reddy, C. M., et al. (2013). Gulf of Mexico Oil Spill Ketone Transformation Products Revealed by Increased Acid/Analyte Concentration Positive Ion ESI FT-ICR MS. In American Chemical Society National Meeting. New Orleans, LA, April 7-11, 2013: Poster. openurl
Ruddy, B. M., Huettel, M., Kostka, J. E., Lobodin, V. V., Bythell, B. J., McKenna, A. M., et al. (2013). New Insights into the Weathering of Macondo Well Oil: Analysis of Contaminated Sands from Pensacola Beach. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. openurl
White, H. K., & Reddy, C. M. (2013). Geochemical insights into restoration efforts in the Gulf of Mexico. In Ocean Sciences Meeting 2013. New Orleans, LA : 02/17/13-02/22/2013. openurl
Williams, P. L., Reddy, C. M., & White, H. K. (2013). Exploring the heterogeneity of oil in sand patties from the Gulf of Mexico. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2013. New Orleans, LA: 01/21/2013-01/23/2013: Poster. url

2012

Aeppli, C. A., Valentine, D. L., Arakawa, N., Aluwihare, L., Redmond, M. C., Nelson, R. K., et al. (2012). Oxygenation of petroleum hydrocarbons after the Deepwater Horizon disaster. In AGU Annual Meeting. San Francisco, CA, December 14, 2012: Poster. url
Corilo, Y. E., Podgorski, D. C., McKenna, A. M., Rodgers, R. P., Lemkau, K. L., Reddy, C. M., et al. (2012). Robust Source Identification of Components in Oil Spills by FT-ICR MS and Principal Component Analysis. In International Conference on Petroleum Phase Behavior and Fouling. St. Petersburg, FL, June 10-14, 2012: Poster. url
Corilo, Y. E., Podgorski, D. C., McKenna, A., Rodgers, R. P., Lemkau, K. L., Reddy, C. M., et al. (2012). Identifying robust, source identification components in oil spills by FT-ICR MS and PCA. In International Conference on Petroleum Phase Behavior and Fouling. St. Petersburg, FL, June 11, 2012: Poster. url
Kinsey, J. C., Yoerger, D. R., Jakuba, M. V., Camilli, R., & Reddy, C. (2012). Estimating the Mid-Water Hydrocarbon Fluxes with an Autonomous Underwater Vehicle and an In situ Mass Spectrometer. In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12: Poster. url
Kong, D., Moir, M., Nelson, R. K., & Reddy, C. M. (2012). Oil spill source identification with advanced and tiered analytical tools. In National Environmental Monitoring Conference. Washington, DC, August 6-10, 2012. url
Marshall, A., McKenna, A. M., Nelson, R. K., Reddy, C. M., Rodgers, R. P., Savory, J. T., et al. (2012). Next generation analytical characterization of the 2010 Gulf of Mexico Macondo well petroleum by FT-ICR mass spectrometry and GCxGC. In American Chemical Society Meeting. San Diego, CA, March 25-29, 2012. url
Marshall, A. G., McKenna, A. M., Nelson, R. K., Reddy, C. M., Rodgers, R. P., Savory, J. T., et al. (2012). Next Generation Analytical Characterization of the 2010 Gulf of Mexico Macondo Well Petroleum by FT ICR Mass Spectrometry and Comprehensive GCxGC. In American Chemical Society Meeting – Division of Geochemistry Symposium. San Diego, CA, March 28, 2012. openurl
McKenna, A. M. R., R. P., Nelson, R. K., Lemkau, K., Reddy, C. M., Podgorski, D. C., Robbins, W. K., et al. (2012). Molecular Microscope: Comprehensive Oil Spill Characterization by Comprehensive GCxGC and FT-ICR Mass Spectrometry. In American Society of Mass Spectrometry Conference. Vancouver, British Columbia, Canada, May 20-24, 2012. url
McKenna, A. M., Lemkau, K. T., Nelson, R. K., Valentine, D., Reddy, C. M., Podgorski, D. C., et al. (2012). Molecular-level Characterization of Petroleum Seeps and Asphalt Volcanoes from Santa Barbara Basin by FT-ICR Mass Spectrometry. In American Chemical Society Meeting. Philadelphia, PA, August 20, 2012. url
Nelson, R. K., & Reddy, C. M. (2012). GCxGC analysis of petroleum biomarkers: Fingerprinting using molecular fossils. In International Conference on Petroleum Phase Behavior and Fouling. St. Petersburg, FL, June 10-14, 2012: Poster. url
Reddy, C. M. (2012). From pipe to the beach: Studying the polar component of Macondo well oil. In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12. url
Reddy, C. M. (2012). Expanding past traditional analytical techniques for studying the Deepwater Horizon oil spill. In American Chemical Society Meeting. San Diego, CA, March 25-29, 2012. url
Reddy, C. M. (2012). The Deepwater Horizon disaster: From pipe to plume. In American Society of Mass Spectrometry Conference. Vancouver, BC, May 20-24, 2012. url
Reddy, C. M. (2012). The Deepwater Horizon: Science and the Media. In American Association of Anatomists Meeting. San Diego, CA, April 21, 2012. url
Reddy, C. M. (2012). A disaster fit for oceanography. In Ocean Sciences Meeting 2012. Salt Lake City, UT: 02/19/12-02/24/12. url
Reddy, C. M. (2012). Arithmetic with chromatograms: New insights on the fate of spilled oil following the Deepwater Horizon disaster. In Gordon Research Conference. Holderness, NH, July 30, 2012. url
Reddy, C. M. (2012). On a path towards long-term sampling following the Deepwater Horizon. In AGU Annual Meeting. San Francisco, CA, December 14, 2012. url
Reddy, C. M., Nelson, R. K., Carmichael, C. A., Gros, J., & Arey, J. S. (2012). Advances in the analysis of petroleum via comprehensive two-dimensional gas chromatography. In International Conference on Petroleum Phase Behavior and Fouling. St. Petersburg, FL, June 10-14, 2012. url
Rodgers, R. P., McKenna, A. M., Nelson, R. K., Robbins, W. K., Reddy, C. M., & Marshall, A. G. (2012). Molecular Level Compositional and Structural Characterization for the Deepwater Horizon Oil Spill by GCxGC and FT-ICR Mass Spectrometry. In American Academy of Forensic Sciences Annual Meeting. Atlanta, GA, February 20-25, 2012. url
Valentine, D. L., Redmond, M. C., Mendes, S. D., Aeppli, C., Reddy, C. M., & Ryerson, T. B. (2012). Hydrocarbon biodegradation following the Deepwater Horizon: A compound specific point of view. In AGU Annual Meeting. San Francisco, CA, December 14, 2012. url

2011

Aeppli, C. A., Carmichael., Nelson, R., & Reddy, C. M. (2011). Identifying and Characterizing a Polar and Recalcitrant Fraction in Weathered Macondo 252 Well Oil. In Society of Environmental Toxicology and Chemistry (SETAC) Meeting. Boston, MA, November 13-17, 2011, MA. openurl
Reddy, C. M. (2011). What if 160 million gallons of oil started to spill tomorrow? In Society of Environmental Toxicology and Chemistry (SETAC) Meeting. Boston, MA, November 13-17, 2011. url
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