On 2016 a coastal survey was conducted in the Bay of Campeche (Mexico) to search for remnants of the Ixtoc-1 spill. This spill occurred on June 3 of 1979 releasing about 3 million barrels of oil during 9.75 months. In the aftermath of the spill (1979-1980), a survey conducted by Texas A&M University-Corpus Christi indicated oil reached and impacted several areas, including mangroves, reefs and rocky beaches. Previous visual surveys and observations from locals confirmed the coastal areas were not impacted by oil before the Ixtoc-1 spill. In 2016, C-IMAGE II researchers conducted a similar survey with the additional goal of collecting oil-containing samples to investigate (1) the chemical composition and concentration of residual petroleum hydrocarbons, (2) buried oil weathering products, (3) photo-oxidation vs degradation weathering processes, and (4) fate and potential toxicological impacts. This dataset contains hydrocarbon concentrations. The measurements of hydrocarbons were made using Agilent 7680B gas chromatograph coupled with an Agilent 7010 triple quadrupole mass spectrometer. This dataset supports the publication: Radović, J. R., Romero, I. C., Oldenburg, T. B. P., Larter, S. R., & Tunnell, J. W. (2019). 40 Years of Weathering of Coastal Oil Residues in the Southern Gulf of Mexico. Deep Oil Spills, 328–340. doi:10.1007/978-3-030-11605-7_20


Data and metadata is made available by the Gulf of Mexico Research Initiative Information and Data Cooperative (GRIIDC) through a CC0 license in compliance with the Gulf of Mexico Research Initiative (GoMRI). The original dataset landing pages may be accessed at GRIIDC’s dataset monitoring webpage.

Data users are encouraged to contact the originating investigator prior to data use and provide appropriate credit.


To investigate the chemical composition and concentration of residual petroleum hydrocarbons.


Coastal sampling, Hydrocarbon analysis, Sediments, Mangroves





Point of Contact

Romero, Isabel
University of South Florida
College of Marine Science
140 7th Ave South
St. Petersburg , FL 33701

Funding Source


Start of Data Collection

August 2016

End of Data Collection

August 2016



Rights Information

Creative Commons License
This work is licensed under a Creative Commons Public Domain Dedication 1.0 License.