Person Profile

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  • Research Groups 4
  • Datasets 14
  • Publications 9
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Christoph Aeppli

Senior Research Scientist
Bigelow Laboratory for Ocean Sciences
caeppli@bigelow.org

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

RFP-V
Gulf of Mexico Research Initiative (GoMRI)

Collection and Analysis of Oiled Sand Patties along the Gulf Coast

RFP-III
Gulf of Mexico Research Initiative (GoMRI)

Assessing Toxicity of Oil Weathered on the Sea Surface: The Importance of Oil Photo-Products

Oil floating at the ocean surface during an oil spill interacts with sunlight and forms “photo-products.” These photo-products are persistent and potentially toxic, but knowledge about their biological impacts, including ecosystem and human health risks, is limited. Thus, they are not adequately accounted for by decision makers when evaluating oil spill risks and impacts. This project, which includes practitioner engagement and input throughout, aims to address this knowledge gap and improve oil spill risk assessment by investigating the chemical composition, bioavailability, toxicity, and long-term health effects of oil photo-products and incorporating this information into models used for oil spill risk assessment.

Thriving Communities 4
National Academies of Science, Engineering, Medicine: Gulf Research Program

ECRF 2017 - Christoph Aeppli

Early Career Research Fellowship
National Academies of Science, Engineering, Medicine: Gulf Research Program
Dataset Available

Gulf Coast Tar Samples, Louisiana, Mississippi, Alabama, July-November 2011.

Authors: Christopher Reddy
Published On: Oct 27 2015 16:34 UTC
File Format: pdf, xlsx
DOI: 10.7266/N7QV3JZV
UDI: R3.x177.000:0001
File Size: 13.98 MB
Dataset Available

Microcosm study: Photochemical oxidation of crude oil

Authors: Huan Chen, Ryan P. Rodgers, Phoebe Zito
Published On: Sep 19 2019 14:29 UTC
File Format: xls, txt
DOI: 10.7266/n7-w8rh-ev52
UDI: R5.x290.000:0001
File Size: 340.59 MB
Dataset Available

Microcosm study: Laboratory measurements of biodegradation

Authors: Huan Chen, Amy M. McKenna, Ryan P. Rodgers
Published On: Sep 16 2019 15:56 UTC
File Format: xls
DOI: 10.7266/n7-3d8b-0860
UDI: R5.x290.000:0002
File Size: 3.18 MB
Dataset Available

Dataset for: How persistent and bioavailable are oxygenated Deepwater Horizon oil transformation products?

Authors: Christoph Aeppli Robert F Swarthout, Gregory W O’Neil, Samuel D. Katz, Deedar Nabi, Collin P. Ward, Robert K. Nelson, Charles M Sharpless, Christopher M. Reddy
Published On: Jul 31 2018 13:24 UTC
File Format: xlsx
DOI: 10.7266/N75B00VM
UDI: R5.x290.000:0004
File Size: 196.02 KB
Dataset Available

Composition and radiocarbon content of phospholipid fatty acids extracted from Deepwater Horizon oil/sand aggregates in Mississippi, Alabama, and Florida, 2015

Authors: Bostic, Joel T.; Aeppli, Christoph; Swarthout, Robert F.; Reddy, Christopher M.; Ziolkowski, Lori A.
Published On: Aug 02 2018 21:11 UTC
File Format: xlsx
DOI: 10.7266/N7VQ3173
UDI: R5.x290.000:0006
File Size: 27.32 KB
Dataset Available

Dataset for: Partial Photochemical Oxidation Was a Dominant Fate of Deepwater Horizon Surface Oil

Authors: Collin Ward, cward@whoi.edu
Published On: Jun 26 2018 18:43 UTC
File Format: xlsx
DOI: 10.7266/N7HX1B6K
UDI: R5.x290.000:0007
File Size: 33.24 KB
Dataset Available

Dataset for: Photochemical Oxidation of Oil Reduced the Effectiveness of Aerial Dispersants Applied in Response to the Deepwater Horizon Spill

Authors: Collin Ward, cward@whoi.edu
Published On: Jul 02 2018 16:00 UTC
File Format: xlsx
DOI: 10.7266/N7D50KHM
UDI: R5.x290.000:0008
File Size: 20.61 KB
Dataset Available

Oil and moisture content of oil/sand aggregates ("sand patties") collected in the Gulf of Mexico beaches from 2011-04-03 to 2014-06-24

Authors: Karin L. Lemkau, Christoph Aeppli, Catherine A. Carmichael, Christopher M. Reddy, Robert F. Swarthout, Helen K. White
Published On: Feb 11 2019 18:02 UTC
File Format: xlsx
DOI: 10.7266/N7WD3Z5K
UDI: R5.x290.000:0010
File Size: 45.53 KB
Dataset Available

Dataset for: Sunlight induced molecular progression of oil into interfacial material and dissolved organic matter

Authors: Zito, Phoebe, Ryan P. Rodgers, Matt Tarr, David Podgorski and Robert G.M. Spencer
Published On: Aug 04 2020 19:20 UTC
DOI: 10.7266/n7-bqdh-w733
UDI: R5.x290.000:0011
File Size: 58.09 MB
Dataset Available

Dataset for: Oxygen isotopes (δ18O) trace photochemical hydrocarbon oxidation at the sea surface

Authors: Ward, Collin
Published On: Aug 31 2020 16:29 UTC
File Format: xlsx
DOI: 10.7266/n7-0j58-hm63
UDI: R5.x290.000:0012
File Size: 23.69 KB
Dataset Available

Dataset for: Molecular-Level Composition and Acute Toxicity of Photosolubilized Petrogenic Carbon

Authors: Phoebe Zito
Published On: Jan 23 2020 16:21 UTC
File Format: xlsx
DOI: 10.7266/JP2YVYZA
UDI: R5.x290.000:0013
File Size: 6.39 MB
Dataset Available

Microcosm study: Understanding the mechanism of photochemical oxidation of crude oil

Authors: Ryan P. Rodgers, Sydney F. Niles
Published On: Jun 09 2020 23:36 UTC
File Format: xls
DOI: 10.7266/FY9QWH5F
UDI: R5.x290.000:0014
File Size: 105.31 MB
Dataset Available

Characterization of an asphalt binder and photoproducts by Fourier transform ion cyclotron resonance mass spectrometry reveals abundant water-soluble hydrocarbons

Authors: Niles, Sydney F., Martha L. Chacon-Patino, Alan G. Marshall, and Ryan P. Rodgers
Published On: Jan 13 2021 17:59 UTC
File Format: xls
DOI: 10.7266/RYXAQDA0
UDI: R5.x290.000:0015
File Size: 63.99 MB
Dataset Available

Microcosm: Time-dependent molecular progression of oil-soluble, interfacially-active, and water-soluble species formed by the photodegradation of Macondo well oil

Authors: Chen, Huan and Ryan Rodgers
Published On: Sep 23 2021 21:34 UTC
File Format: xls
DOI: 10.7266/F30JSDGR
UDI: R5.x290.000:0016
File Size: 336.47 MB

Aeppli, C., Swarthout, R. F., O’Neil, G. W., Katz, S. D., Nabi, D., Ward, C. P., … Reddy, C. M. (2018). How persistent and bioavailable are oxygenated Deepwater Horizon oil transformation products? Environmental Science & Technology. doi:10.1021/acs.est.8b01001

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:10.1016/j.marpolbul.2017.10.058

Chen, H., McKenna, A. M., Niles, S. F., Frye, J. W., Glattke, T. J., & Rodgers, R. P. (2022). Time-dependent molecular progression and acute toxicity of oil-soluble, interfacially-active, and water-soluble species reveals their rapid formation in the photodegradation of Macondo Well Oil. Science of The Total Environment, 813, 151884. https://doi.org/10.1016/j.scitotenv.2021.151884

Niles, S. F., Chacón-Patiño, M. L., Chen, H., McKenna, A. M., Blakney, G. T., Rodgers, R. P., & Marshall, A. G. (2019). Molecular-Level Characterization of Oil-Soluble Ketone/Aldehyde Photo-Oxidation Products by Fourier Transform Ion Cyclotron Resonance Mass Spectrometry Reveals Similarity Between Microcosm and Field Samples. Environmental Science & Technology, 53(12), 6887–6894. doi:10.1021/acs.est.9b00908

Ward, C. P., Armstrong, C. J., Conmy, R. N., French-McCay, D. P., & Reddy, C. M. (2018). Photochemical Oxidation of Oil Reduced the Effectiveness of Aerial Dispersants Applied in Response to the Deepwater Horizon Spill. Environmental Science & Technology Letters. doi:10.1021/acs.estlett.8b00084

Ward, C. P., Sharpless, C. M., Valentine, D. L., Aeppli, C., Sutherland, K. M., Wankel, S. D., & Reddy, C. M. (2019). Oxygen Isotopes (δ 18 O) Trace Photochemical Hydrocarbon Oxidation at the Sea Surface. Geophysical Research Letters, 46(12), 6745–6754. doi:10.1029/2019gl082867

Ward, C. P., Sharpless, C. M., Valentine, D. L., French-McCay, D. P., Aeppli, C., White, H. K., … Reddy, C. M. (2018). Partial Photochemical Oxidation Was a Dominant Fate of Deepwater Horizon Surface Oil. Environmental Science & Technology, 52(4), 1797–1805. doi:10.1021/acs.est.7b05948

Zito, P., Podgorski, D. C., Bartges, T., Guillemette, F., Roebuck, J. A., Spencer, R. G. M., … 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. doi:10.1021/acs.energyfuels.9b04408

Zito, P., Podgorski, D. C., Johnson, J., Chen, H., Rodgers, R. P., Guillemette, F., … Tarr, M. A. (2019). Molecular-Level Composition and Acute Toxicity of Photosolubilized Petrogenic Carbon. Environmental Science & Technology, 53(14), 8235–8243. doi:10.1021/acs.est.9b01894