Oil pollution in the coastal waters off Port Dickson, Straits of Malacca.
1990
Law A.T. | Ravinthar V. | Yeong C.H.
The petroleum hydrocarbon distribution in the Port Dickson coastal waters was studied over a period of three years from 1986 to 1989. Generally, there was no significant difference (P>0.05) of hydrocarbon levels in water among the sampling stations on each of the sampling dates. However, a pronounced fluctuation was found at different sampling dates. Similarly, a pronounced fluctuation of hydrocarbon content in the sediment with different sampling dates was also detected. The mean hydrocarbon level in the water ranged between 14.69 ppb and 150.28 ppb, ESSO Tapis A crude oil equivalent (or between 0.77 ppb and 7.87 ppb, chrysene equivalent), while for the sediment it ranged between 21.73 mg/kg and 74.50 mg/kg dry sediment, Esso Tapis A crude oil equivalent (or between 1.12 mg/kg and 3.90 mg/kg dry sediment, chrysene equivalent). The oil pollution level in the Port Dickson coastal waters was comparable or higher than that found in the Exclusive Economic Zone waters off Pahang and Sabah, but was lower than that detected in the Terengganu and Sarawak waters. The source of hydrocarbon pollution in the Port Dickson coastal waters was probably from the open sea and the nearby harbour and oil refineries rather than from land runoff.
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