1. Chris Reddy Department of Marine Chemistry and Geochemistry Woods Hole Oceanographic Institution

2. The Japanese tanker, the Hoyo Maru sank in 1944. It could carry up to two million gallons of oil.

3. National Geographic

4. M ICHAEL B ARRETT

5. Sour Initial cargo from Hoyo Maru ≠ Surface slick from Hoyo Maru

6. normal alkanes branched alkanes cycloalkanes nitrogen, sulfur, and oxygen Gasoline Kerosene Diesel Heavy gas oil Lubricating Residuum Boiling point °C 0 20406080100 80 60 40 20 100200300400500 600 s napthenoaromatics aromatics Percentage of molecular types

8. 67% 33% What happens if there is a massive release?

9. What comprises the oil? (they are few aromatics)

11.  Where did the Hoyo Maru oil come from?

14. Ts Tm 29H H O 31HH 32HH M29M 28H (S) (R) (S) (R) Hoyo Maru Central Sumatra Basin

16. (Camilli and Duryea, 2009)‏ TETHYS: an in-situ mass spectrometer optimized for detection of low molecular weight gases and volatile organics (chemical sniffer!)

17. SENTRY AUV

20. 1.Treat oil as a group of compounds that can provide invaluable insights into the source, behavior, and response to spills. 2.New technology in the pipeline that may aid in monitoring and assessment.