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IMPACT OF POLLUTION BY POTENTIAL OIL SPILLS ON COASTAL FACIES OF PULAU PANGKOR

VARN MAY, JASMIN SAW (2011) IMPACT OF POLLUTION BY POTENTIAL OIL SPILLS ON COASTAL FACIES OF PULAU PANGKOR. Masters thesis, UNIVERSITI TEKNOLOGI PETRONAS.

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Abstract

Pulau Pangkor, an island off the western coast of Peninsular Malaysia is very vulnerable to pollution by potential oil spills as it is located in the middle-eastern sector of the Strait of Malacca, one of the world’s busiest maritime thoroughfares. The coastal facies of Pulau Pangkor mainly comprise of sandy beaches and rocky headlands on the western coast with a few mangrove swamps and mud flats on the east coast. Grain size analyses of the beach sediments showed that, for most beaches, the sand is coarser to the north and finer to the south, confirming that sediment transport is from north to south. The composition of the beach sand also varies from north to south, with a high proportion of carbonate particles (about 40%) in the north, a mixture of carbonate particles and clastic sediments in the central coastline and mainly quartz grains in the southern beaches of Pulau Pangkor. This pattern suggests that there is very little sediment movement and a very slow dynamic sediment transport around the island. The implications of these findings are that, should an oil spill occur and reach the beaches of Pulau Pangkor, the oil would tend to settle on the beaches and would not be removed or transported away by the slow, ineffective longshore currents. To clean up the beaches, the spilled oil would have to be removed manually or mechanically. The rate of penetration of oil into the beach sediments varies according to the nature and grain size of the sedimentary facies. The rate of oil penetration in carbonate beach sand is slower than in quartz beach sand as carbonates become more easily oil-wet than clastics. In the event of an oil spill, oil slick contamination on the beaches could be avoided by placing booms some distance off the coastline. The booms can be anchored in the shallow marine area to block the potential oil slicks and prevent them from reaching the beaches of Pulau Pangkor. Additional mitigating measures include the use of dispersants or other methods to contain or destroy the oil slicks before they reach the shoreline of Pulau Pangkor.

Item Type: Thesis (Masters)
Subject: UNSPECIFIED
Divisions: UNSPECIFIED
Depositing User: Users 5 not found.
Date Deposited: 05 Jun 2012 11:17
Last Modified: 25 Jan 2017 09:42
URI: http://utpedia.utp.edu.my/id/eprint/3048

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