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Louisiana Universities Marine Consortium
LUMCON
8124 Hwy. 56
Chauvin, LA 70344 USA
Tel (PWS): 1-985-851-2876 FAX: 1-985-851-2874
email: psammarco@lumcon.edu

Press Release
October 13, 2010

Sampling in Louisiana’s Inshore Waters Indicates Presence of Crude Oil

Dynamic's New Dyna-Aqua Oil SorbTM Used to Determine the Presence of Petroleum
Hydrocarbons and Corexit® in Water involved with BP Oil Spill

The BP-Deep Horizon oil spill of April 2010 in the Gulf of Mexico was the worst in US history and one of the worst in the world. Contamination of inshore and offshore waters, beaches, salt marshes, bays, etc. has been widely reported, along with ill effects on estuarine and marine fauna. Reports of petroleum hydrocarbon and dispersant concentrations in the water have been variable. Shortly after the leaking well had been capped in July, the federal government announced that most of the 200,000,000 gallons of crude oil released into the Gulf of Mexico was no longer evident.

On August 20, 2010, Dr. Paul W. Sammarco of the Louisiana Universities Marine Consortium (LUMCON) conducted reconnaissance on the NW side of Timbalier Island and off Rock Island, Louisiana to determine the presence or absence of petroleum hydrocarbons in inshore Louisiana waters (Terrebonne Bay) using a new, state-of-the-art adsorbent material – Dyna-Aqua Oil SorbTM from Dynamic Technology, Inc. The composition of petroleum hydrocarbons was determined along with their concentrations in the cloth and estimates of their concentrations in the seawater.

The water samples derived from the adsorbent cloth yielded 39 hydrocarbon compounds, 23 of which were clearly identifiable. Of those 23, 13 were identified to be petroleum hydrocarbons derived from crude oil. One of the 21 compounds was identified to be 2-butoxy-ethanol - a toxic component of Corexit®, the dispersant used by BP and the US Coast Guard in treating the spill.

The cloth collected high concentrations of these compounds ranging from 14-233 mg l-1. When standardized by the estimated volume of seawater sampled, the range of concentrations fell to 0.002-0.033 mg l-1. Considering the circumstances, this was not logical. NOAA’s concentrations were reported from in an offshore environment just E-SE of the spill site on May 30, 2010 – 5.5 wks into the spill. One would expect those concentrations to be much higher – since they were sampling down-current of the spill (with respect to major long-shelf currents) while it was still active. Sammarco’s samples were taken up-current of the spill site and 5 wks after the well had been capped. Concentrations reported in this study may also be considered to be conservative, based on the mode of sampling (non-forced/flow-through filtering). This, in turn, indicates that NOAA’s numbers would appear to be lower than expected for the period of their sampling and in comparison to the data here. In addition, underwater video footage taken by Mr. Scott A. Porter on May 7, 2010 shows that the dispersant may have been effective at submerging the oil but was not 100% effective at dissolving it, causing high concentrations of it to be patchily distributed in shallow water. Point-sampling using Niskin bottles to sample seawater when the oil is distributed in this fashion could easily have missed these patches. The sampling technique we used here is broad-scale, cumulative, and is probably better suited to provide representative data of actual concentrations under these circumstances.

This adsorbent material’s high sensitivity to petroleum hydrocarbons makes it well suited for a variety of purposes, including surface oil adsorption, fill for adsorbent booms – replacing dated absorbent ones, adsorption of sunken oil concentrated at depth, environmental monitoring, industrial clean-up, and estuarine filters.

Contacts:

Dr. Paul W. Sammarco
Louisiana Universities Marine Consortium (LUMCON)
8124 Hwy. 56
Chauvin, LA 70344-2110
USA
Tel: (985) 851-2876
FAX: (985) 851-2874
Email: psammarco@lumcon.edu
Website: www.lumcon.edu

Mr. C.D. Pat Patterson
President
Dynamic Technology, Inc.
5100 Monument Ave., Unit #1202
Richmond,Va. 23230
Tel: (804) 310-2694
Email: cdpatterson3@yahoo.com
Website: www.dynamicadsorbents.com

Mr. Ronde Bacquie
Chairman
Dynamic Technology, Inc.
Tel: (301) 266-5919
Email: JDR_Baquie@yahoo.com

Dr. Mark Moskovitz
Chief Technical Officer, Dynamic Technology
President and CEO, Dynamic Adsorbents, Inc.
3280 Peachtree Corners Circle, Suite E
Norcross, GA 30092
Tel: (770) 817-0123
Fax: (770) 455-4380
Mobile: (404) 229-1537
Email: mmoskovitz@aol.com

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