Health Effects of Oil Spills Flashcards
(32 cards)
Deepwater Horizon Oil Spill location
Gulf of Mexico near Mississipi Delta US
Estimated discharge of oil in Deepwater Horizon Oil Spill
4.9 million barrels
Cause of Deepwater Horizon Oil Spill
Wellhead blowout
Fault of Deepwater Horizon Oil Spill
BP and rig opperator Transocean and contractor Halliburton
Criminal reasoning for Deepwater Horizon Oil Spill
Gross negligence, cost-cutting decisions, and inadequate safety system
Where is oil said to be imbedded all the way in Florida Panhandle and Tampa Bay
In the sand
Infant dolphins died at this rate after the spill
6x normal
Deepwater Horizon Oil Spill affect on tuna
Heart deformaties
Poster animal for oil spill, why
Turtle, affected at every stage of life
Main effect of oil spill on birds
Cannot thermoregulate, spend all their time preening
Baseline data
Data about the area prior to an event or disaster
Corexit
Chemical dispersant that sinks to the seafloor when mixed with oil
Evidence of Deepwater Horizon Oil Spill found on the Gulf Coast
oily sea foam, tar balls
Medical issues after 5 years since the Deepwater Horizon Oil Spill
chronic cough, skin rash, memory loss
Deepwater Horizon Oil Spill effects on real estate market
Houses spent a long time on the market
Methods of containing oil in when spilled
- skimmer ships
- floating containment booms
- controlled burns
- oil-eating microbes
- Corexit
Criticism of containment booms
- Only effective in relatively calm water
- wash up on shore with oil
- oil can escape above or below boom
Mixture of emulsifier and solvent that breaks oil down into small droplets that may be more readily biodegradable
Corexit
Dispersant trade-offs
exposing coastal life to surface oil and exposing aquatic life to dispersed oil
Concerns with Corexit
- possible cancer causing agents
- hazardous toxins
- endocrine-disrupting chemicals
Georgia Tech 2012 study
Corexit increased toxicity of oil by 52x
Excessive exposure may cause CNS effects, nausea and vommitting, anesthetic or narcotic effects
Corexit
Banned in the UK
Corexit
Clean-up workers of Deepwater Horizon Oil Spill
- increased risk for cancer and leukemia
- altered blood profiles, liver enzymes