EPA Science Inventory

Determining The Dispersibility Of South Louisiana Crude Oil By Eight Oil Dispersant Products Listed On The NCP Product Schedule

Citation:

VENOSA, A. D. AND E. L. Holder. Determining The Dispersibility Of South Louisiana Crude Oil By Eight Oil Dispersant Products Listed On The NCP Product Schedule. C. Sheppard (ed.), MARINE POLLUTION BULLETIN. Elsevier Ltd, Oxford, Uk, 66(1-2):73-77, (2013).

Description:

We recently conducted a laboratory study to measure the dispersion effectiveness of eight dispersants currently listed on the National Contingency Plan Product Schedule. Results are useful in determining how many commercial dispersant products would have been effective for use on South Louisiana crude oil in the Deepwater Horizon oil spill. The test used was a modification of the Baffled Flask Test (BFT), which is being proposed to replace the current Swirling Flask Test (SFT). The modifications of the BFT in this study included use of one oil rather than two, increasing replication from 4 runs to 6, and testing at two temperatures, 5oC and 25oC. Results indicated that temperature was not as critical a variable as the literature suggested, likely because of the low viscosity and light weight of the SLC. Of the eight dispersants tested, only three gave satisfactory results in the laboratory flasks at both temperatures.

Purpose/Objective:

To test the eight dispersants on SLC (similar in composition to the Mississippi Canyon Block 252 oil from the Gulf of Mexico spill) under temperature conditions similar to both the deep sea (5oC) and in the top 5 m (25oC) in the Gulf.

URLs/Downloads:

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Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Start Date: 01/15/2013
Completion Date: 01/15/2013
Record Last Revised: 01/17/2013
Record Created: 09/15/2011
Record Released: 09/15/2011
OMB Category: Other
Record ID: 238246

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

LAND REMEDIATION AND POLLUTION CONTROL DIVISION

IMMEDIATE OFFICE