Document Detail

Slightly weathered Exxon Valdez oil persists in Gulf of Alaska beach sediments after 16 years.
MedLine Citation:
PMID:  17593726     Owner:  NLM     Status:  MEDLINE    
Oil stranded by the 1989 Exxon Valdez spill has persisted in subsurface sediments of exposed shores for 16 years. With annualized loss rates declining from approximately 68% yr(-1) prior to 1992 to approximately 4% yr(-1) after 2001, weathering processes are retarded in both sediments and residual emulsified oil ("oil mousse"), and retention of toxic polycyclic aromatic hydrocarbons is prolonged. The n-alkanes, typically very readily oxidized by microbes, instead remain abundant in many stranded emulsified oil samplesfrom the Gulf of Alaska. They are less abundant in Prince William Sound samples, where stranded oil was less viscous. Our results indicate that, at some locations, remaining subsurface oil may persist for decades with little change.
Jeffrey W Short; Gail V Irvine; Daniel H Mann; Jacek M Maselko; Jerome J Pella; Mandy R Lindeberg; James R Payne; William B Driskell; Stanley D Rice
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Publication Detail:
Type:  Historical Article; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental science & technology     Volume:  41     ISSN:  0013-936X     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-06-27     Completed Date:  2007-08-21     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1245-50     Citation Subset:  IM    
Auke Bay Laboratory, Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, 11305 Glacier Highway, Juneau, Alaska 99801-8626, USA.
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MeSH Terms
Alkanes / analysis*,  history
Environmental Monitoring
Environmental Pollutants / analysis*,  history
Geologic Sediments / analysis
History, 20th Century
History, 21st Century
Polycyclic Hydrocarbons, Aromatic / analysis*,  history
Reg. No./Substance:
0/Alkanes; 0/Environmental Pollutants; 0/Petroleum; 0/Polycyclic Hydrocarbons, Aromatic

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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