| Title: | Comparative Risk Assessment of spill response options for a deepwater oil well blowout: Part 1. Oil spill modeling |
| Author(s): | French-McCay D; Crowley D; Rowe JJ; Bock M; Robinson H; Wenning R; Walker AH; Joeckel J; Nedwed TJ; Parkerton TF; |
| Address: | "RPS ASA, South Kingstown, RI, USA. Electronic address: debbie.frenchmccay@rpsgroup.com. RPS ASA, South Kingstown, RI, USA. Ramboll, Portland, ME, USA. Ramboll, Arlington, VA, USA. SEA Consulting Group, Cape Charles, VA, USA. ExxonMobil Upstream Research Company, Spring, TX, USA. ExxonMobil Biomedical Sciences, Spring, TX, USA" |
| DOI: | 10.1016/j.marpolbul.2018.05.042 |
| ISSN/ISBN: | 1879-3363 (Electronic) 0025-326X (Linking) |
| Abstract: | "Oil spill model simulations of a deepwater blowout in the Gulf of Mexico De Soto Canyon, assuming no intervention and various response options (i.e., subsea dispersant injection SSDI, in addition to mechanical recovery, in-situ burning, and surface dispersant application) were compared. Predicted oil fate, amount and area of surfaced oil, and exposure concentrations in the water column above potential effects thresholds were used as inputs to a Comparative Risk Assessment to identify response strategies that minimize long-term impacts. SSDI reduced human and wildlife exposure to volatile organic compounds; dispersed oil into a large water volume at depth; enhanced biodegradation; and reduced surface water, nearshore and shoreline exposure to floating oil and entrained/dissolved oil in the upper water column. Tradeoffs included increased oil exposures at depth. However, since organisms are less abundant below 200?ª+m, results indicate that overall exposure of valued ecosystem components was minimized by use of SSDI" |
| Keywords: | "Bacteria/metabolism Biodegradation, Environmental Ecosystem Gulf of Mexico Humans Oil and Gas Fields/microbiology Petroleum Pollution/analysis/*prevention & control Risk Assessment/*methods Water Pollutants, Chemical/adverse effects/*analysis/metabolism N;" |
| Notes: | "MedlineFrench-McCay, Deborah Crowley, Deborah Rowe, Jill J Bock, Michael Robinson, Hilary Wenning, Richard Walker, Ann Hayward Joeckel, John Nedwed, Tim J Parkerton, Thomas F eng Comparative Study England 2018/06/05 Mar Pollut Bull. 2018 Aug; 133:1001-1015. doi: 10.1016/j.marpolbul.2018.05.042. Epub 2018 Jun 1" |
