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Investigating the effect of oil spills
on the environment and public health.
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Christoph Aeppli

Bigelow Laboratory for Ocean Sciences

Research

180 McKown Point Road
West Boothby Hbr, ME  04575  

caeppli@bigelow.org

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

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

Year 2-4 Consortia Grants (RFP-I)Role: Post-Doc

Collection and Analysis of Oiled Sand Patties along the Gulf Coast

Bridge Grants (RFP-III)Role: Post-Doc

Publications & Presentations:

Journal Articles - 16

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., 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

2016

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
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
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

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

Conference Presentations - 53

2018

Aeppli, C., Katz, S., Beirne, E., & Nabi, D. (2018). New Methods to Determine the Toxicity of Oxygenated Oil Transformation Products in Weathered Deepwater Horizon Oil Residues. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2018. New Orleans, LA : 02/05/18-02/08/18. openurl
Beirne, E., Katz, S., Clark, B., Nacci, D., Ricker, R., Baker, G., et al. (2018). Exposure and Uptake of Oil Hydrocarbons and Oxygenated Oil Weathering Products in Fish Egg Incubation Experiments Using Weathered Oil. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2018. New Orleans, LA : 02/05/18-02/08/18: Poster. openurl
Chen, H., Katz, S., & Aeppli, C. (2018). Copepods toxicity of photo-irradiated oil: the role of PAHs and oxygenated photo-products. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2018. New Orleans, LA : 02/05/18-02/08/18: Poster. openurl
Forziati, N., Nabi, D., & Aeppli, C. (2018). Determining the Acute and Sublethal Toxicity of Oxygenated Hydrocarbons in Weathered Oil. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2018. New Orleans, LA : 02/05/18-02/08/18: Poster. 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

Herzog, A., & Aeppli, C. (2017). Linking chemical composition to toxicity of fresh and weathered oil samples collected from the 2010 Gulf of Mexico oil spill. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17: Poster. openurl
Katz, S. D., Nabi, D., & Aeppli, C. (2017). Dynamics of carboxylic acids produced in weathered Deepwater Horizon oil samples and their water solubility. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17: Poster. 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
Nabi, D., Katz, S. D., & Aeppli, C. (2017). Identification of oxygenated transformation products in weathered Deepwater Horizon oil samples and assessment of their bioaccumulation and toxicity potential. In Gulf of Mexico Oil Spill & Ecosystem Science Conference 2017. New Orleans, LA : 02/06/17-02/09/17. openurl
Nabi, D., Katz, S. D., & Aeppli, C. (2017). Are Oxygenated Hydrocarbons Important Oil Degradation Products After Oil Spills? In International Oil Spill Conference 2017. Long Beach, CA : 05/15/17-05/18/17. openurl
Nabi, D., Zushi, Y., Samanipour, S., Ahmad, F., Arey, J. S., & Aeppli, C. (2017). Passive sampling and GCxGC: When two marry to give better understanding of transport behaviour and fate of micropollutants in environmental waters. In 9th International Passive Sampling Workshop and Symposium. Toronto, Ontario, Canada : 05/31/17 - 06/03/17. 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

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
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
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

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
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

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
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., & 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. 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
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
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., 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
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
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

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
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. (2011). Characterizing Weathering Processes of Deepwater Horizon oil. In WHOI Post-doctoral Scientist Symposium. Woods Hole, MA , 10-20-11. openurl
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
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