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Chris ReddyDepartment of Marine Chemistry and Geochemistry
Woods Hole Oceanographic Institution
The Japanese tanker, the Hoyo Maru sank in 1944. It could carry up to two million gallons of oil.
National Geographic
MICHAEL BARRETT
SourSour
Initial cargofrom Hoyo Maru
≠
Surface slick
Surface slickfrom Hoyo Maru
normalalkanes
branchedalkanes
cycloalkanes
nitrogen,sulfur, andoxygen
Gasoline
Kerosene
Diesel
Heavy gas oil
LubricatingResiduum
Boiling point °C
020 40 60 80 100
100
80
60
40
20
100 200 300 400 500 600
s
napthenoaromaticsaromatics
Percentageof moleculartypes
67%33%
What happens if there is a massive release?
What comprises the oil? (they are few aromatics)
Where did the Hoyo Maru oil come from?
Ts
Tm
29H
H
O 31HH
32HH
M29M28H (S)
(R) (S)
(R)
Hoyo Maru
Central Sumatra Basin
(Camilli and Duryea, 2009)
TETHYS: an in-situ mass spectrometer optimized for detection of low molecular weight gases and volatile organics (chemical sniffer!)
SENTRY AUV
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.