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The following case study is about the impacts that oil pollution produces in the sea, specifically in this case in the coasts of South Wales. This incident was due to the stranding of an oil tanker from the company Sea Empress. The cause for this oil pollution was that a 147,000 tone oil tanker from Sea Empress ran aground, even though they were controlled by the harbor pilots. The oil tanker would have been docked earlier but because of the heavy seas it took longer. Another major problem was that at the harbor they were unprepared and they couldn’t provide a heavy tug until 24 hours later.

Due to the worsening weather the oil tanker was making disasters, as the oil started to fall into the sea. What gets even worst is that 6 days after this event the oil tanker was finally taken out by a total of 12 tugs. As a consequence of all these the Oil tanker from Sea Empress lost about 77,000 tons Of Oil, all being deposited unfortunately into the sea. The problem with this was that the cargo of North Sea crude oil was considered light oil; this type of oil is the one that gives out its most harmful toxins into the water and air.

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Most important of all, one of the greatest impacts it’s that before these microorganisms in the sea break down he rest of the toxins, sea animals like crabs, shellfish and fish concentrate toxins in side themselves, this for sure contaminating them harmfully. Another important aspect that might be considered is that when this fish concentrate toxins within themselves, these are then passed up the food chain, so it doesn’t just affect them. Effects due to the oil pollution were greatly seen in west Angle Bay, where starfish had been wiped out, and with his the whole ecosystem turning to be threatened with damage and disruption.

Just 12 miles radius of the slick there is a protected area, which is a marine reserve. This island has an important colony of mans shareware, lesser black-backed gull and grey seals between others. What matters about this is that in total it is thought to be 85,000 grey seals around Britain ‘ s coast, for which 5,000 live on the Bombardiers coast. This coast was affected by the oil spill, so therefore the majority of their breeding sites were damaged. Again returning to the heavy impact on the food chain the problem presents gain, because seals eat fish and these are contaminated by the oil previously ingested by them.

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