Abstract:

Dispersion of crude oil in sea water following a spill may occur naturally (e.g., by wave action) or via the application of chemical dispersants such as Corexit 9500. Furthermore, the energy associated with natural mixing of crude oil (and dispersant) with sea water may vary in intensity from low to high (e.g., high energy mixing from the riser pipe at the site of release). Although Corexit was applied at both the site of release and the sea surface during the Deepwater Horizon spill, where mixing energies differed, the impacts on mixing energy and PAH dissolution from oil-dispersant mixtures remains unclear. This test sought to address this gap in knowledge by measuring total PAH, BTEX and DOSS from MASS WAFs generated with and without Corexit 9500 prepared at low and high mixing energies. This dataset includes all PAH and DOSS measurements from these various WAF preparations.

Suggested Citation:

Mager, E., Grosell, M.. 2018. Chemical Comparisons of WAFs Generated by Low and High Energy Mixing Methods for MASS Oil and Dispersant. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7DB8086

Purpose:

To examine the chemical compositions of water accommodated fractions (WAFs) generated using different mixing energies with and without dispersant.

Data Parameters and Units:

Sample Inventory.csv: Sampling date (DD-MMM-YY); Sampling time (HH:MM); Tank ID dilution or stock code; Unique ID number; Sample ID; Description of sample; Storage location; Notes; Recorded by WAF Preparation.csv: Date (MM/DD/YYYY); Time (HH:MM); WAF preparation method (CEWAF, HEWAF, or HEWAF+Corexit); Oil type (Source MASS); Water/diluent volume (L); Mass of dispersant added (mg); Mass of oil added (mg); Calculated nominal concentration (mg/L) PAH Analysis.csv: Client; Project; Service request; Sample; Lab code; Sample type; Date collected (MM/DD/YYYY); Date received (MM/DD/YYYY); Date extracted (MM/DD/YYYY); Date analyzed (MM/DD/YYYY); Extraction method; Method; Matrix; Basis; Units (ug/L or %); Component (ioctyl sodium sulfosuccinaten Sodium bis(2-ethylhexyl-d17) sulfosuccinate, tenzene, toluenes, ethylbenzene, xylenes, decalines, benzothiophenes, naphthalenes, biphenyl, dibenzofuran, acenaphthylene, acenaphthene, fluorenes, phenanthrenes, retene, dibenzothiophenes, fluoranthenes, pyrenes, napthobenzothiophenes, chrysenes, benzo fluoranthenes, benzo pyrenes, hopane, methyldibenzothiophenes, methylphenathrenes, methylnaphthalenes, carbazole, terphenyl); Dilution factor; Reporting limit; Detection limit; Result; Result notes; Spike concentration; Percent recovery; Acceptance limits; Average; RPD

Methods:

GC/MS-SIM

Individual Files: