Water Air Soil Pollut. 2015;226(3):68. doi: 10.1007/s11270-015-2298-5. Epub 2015 Feb 25.
Marine Tar Residues: a Review.
Water, air, and soil pollution
April M Warnock, Scott C Hagen, Davina L Passeri
Affiliations
Affiliations
- Communications, Radar and Sensing Group, SRI International, 2100 Commonwealth Boulevard, Ann Arbor, MI 48105 USA.
- Department of Civil, Environmental, and Construction Engineering, University of Central Florida, 12800 Pegasus Blvd, Suite 211, Orlando, FL 32816-2450 USA.
PMID: 25741050
PMCID: PMC4339695 DOI: 10.1007/s11270-015-2298-5
Abstract
Marine tar residues originate from natural and anthropogenic oil releases into the ocean environment and are formed after liquid petroleum is transformed by weathering, sedimentation, and other processes. Tar balls, tar mats, and tar patties are common examples of marine tar residues and can range in size from millimeters in diameter (tar balls) to several meters in length and width (tar mats). These residues can remain in the ocean environment indefinitely, decomposing or becoming buried in the sea floor. However, in many cases, they are transported ashore via currents and waves where they pose a concern to coastal recreation activities, the seafood industry and may have negative effects on wildlife. This review summarizes the current state of knowledge on marine tar residue formation, transport, degradation, and distribution. Methods of detection and removal of marine tar residues and their possible ecological effects are discussed, in addition to topics of marine tar research that warrant further investigation. Emphasis is placed on benthic tar residues, with a focus on the remnants of the Deepwater Horizon oil spill in particular, which are still affecting the northern Gulf of Mexico shores years after the leaking submarine well was capped.
Keywords: Marine tar; Oil spills; Tar balls; Tar mats
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