What should we do,when oil tanker sank beside us?
Takatoshi AKAI
JOCV/231
KWS/Malindi Marine Park
Disaster in the past
• In 24 Mar 1989 mid night• North east of Prince William Bay in Alaska• Tanker named “Exxon Valdez” (200 thousand ton: 200,000 ton)• 1/5 oil (38,000 Kilo Litter) outflow
Effect of disaster
• 250 thousand (250,000) sea birds dead
• Mammals such as sea otter suffer a great loss
Choose 1 solution!!
①Result of burn oil
• All creatures in the field
are dead!!
②Result of using chemical
• Chemical effected to
other creatures and killed them.
③Result of using high pressured hot water to wash away
• Creatures, which somehow survived on the rock, killed and washed away by high pressured hot water.
• Also removed oil flow into sand and killed shells and lungworm.
I'm choking…
Oil
Miss Shell
④Result of using cold water to wash away
• Removed oil flow into sand and killed shells and lungworm.
I`m choking…
Oil
Miss Shell
⑤Result of remove oiled sand and mud
• Removing oiled sand and mud
is also removing all organism in the area.
Therefore, this area will become dead land.
⑥Result of spread manure to ↑ microbe, which break down oil
Oil composed by hydrocarbon.1.Use microbe to break down oil.2.Nitrogen and Phosphorus increase by
microbe activities.3.So, help microbes, we spread manure.
MoguMogu
Mogu
How much did it cost to recoverin Prince William Bay?
• Time period：More than 3 years
• Cost：More than $20 hundred million
$2,000,000,000
What i s the cause of out f low oi l?
Cause 1
Spill out from factory and cities
Cause 2
Spill out from ballast in oil tanker
Cause 3
Spill out from
accident of
oil tanker
Cause 4
Spill out
accidently
such as Gulf war
Solution
① Stop using oil materials
② Shift to use renewable resources
Conclusion
• We are still depend on energy from oil.
• If some oil tanker sank accidently beside our sea, we should take certain action to avoid loss of bio diversity.
• Also we should shift from oil to renewable resources, then accident will be reduced.
