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The M/V Cosco Busan spill: source identification and short-term fate |
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| Authors: | Lemkau Karin L Peacock Emily E Nelson Robert K Ventura G Todd Kovecses Jennifer L Reddy Christopher M |
| Institution: | a MIT/WHOI Joint Program in Oceanography/Applied Ocean Science and Engineering, USA b Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA c San Francisco Baykeeper, 785 Market Street, Suite 850, San Francisco, CA 94103, USA |
| Abstract: | Understanding the fate of heavy fuel oils (HFOs) in the environment is critical for sound decisions regarding its usage and spill cleanup. To study weathering of HFOs, we examined the M/V CoscoBusan spill (November 2007; San Francisco Bay, CA, USA). In this baseline report, we identified which ruptured tank (port tank 3 or 4) was the source of the spilled oil and characterized changes in the oil composition across location and time. Samples from three impacted shorelines, collected within 80 days of the spill, were analyzed using one- and two-dimensional gas chromatography (GC and GC × GC, respectively). Weathering varied across sites, but compounds with GC retention times less than n-C16 were generally lost by evaporation and dissolution. Changes in n-C18/phytane and benza]anthracene/chrysene ratios indicated some biodegradation and photodegradation, respectively. |
| Keywords: | Heavy fuel oil Petroleum weathering San Francisco Bay Oil spills M/V CoscoBusan |
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