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News: A Japanese ship struck a coral reef off Mauritius spilling about 1,000 tonnes of fuel oil and triggering a state of environmental emergency.This oil spill took place near Blue Bay Marine Park Reserve, a wetland of international importance.
Facts:
- Oil Spill: It is the contamination of seawater due to an oil pour as a result of an accident or human error.
- How dangerous are oil spills?
- As oil is less dense than salt water, it floats and forms a thin film on the surface.The floating oil sticks to the fur and feathers of marine mammals and birds eliminating their insulating and water-repelling properties and exposing them to the cold.
- The marine creatures can also be poisoned by swallowing the oil residue.
- How are oil spills cleaned? There are a few ways to clean up oil spills including:
- Skimming: It involves removing oil from the sea surface before it is able to reach the sensitive areas along the coastline.
- In situ burning: It means burning a particular patch of oil after it has concentrated in one area.
- Releasing chemical dispersants helps break down oil into smaller droplets, making it easier for microbes to consume, and further break it down into less harmful compounds.
- Natural actions in aquatic environments such as weathering, evaporation,biodegradation and oxidation can also help reduce the severity of an oil spill and accelerate the recovery of an affected area.
