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Title:	Radioecology of polonium-210 and content of heavy metals in Kapar coastal area and risk assessment of seafood consumption
Authors:	Lubna Alam (P40975)
Supervisor:	Che Abd Rahim Mohamed, Dr.
Keywords:	Dissertations, Academic -- Malaysia Radioecology Universiti Kebangsaan Malaysia -- Dissertations
Issue Date:	5-Mar-2012
Description:	A systematic study on the natural radionuclide Po-210 in the marine environmental materials of Kapar coastal area has been undertaken to establish a baseline data on the radiation profile of a coal burning power plant area. The environmental samples such as water, sediment and biota (fish, crustacean and molluscs) have been subjected to analyses. At the same time, the water quality parameters have been recorded during each sampling period. Additionally, research regarding the concentration of toxic heavy metals in marine organisms has been emphasized and determination was carried out using the ICP-MS. The mean concentrations of Po-210 were recorded as 0.69±0.34 mBql-1, 85.90±65.62 Bqkg-1 and 33.19±14.85 Bqkg-1 in water, total suspended solid (TSS) and sediment, respectively. The ranges of Po-210 activities in the organism samples were 4.4±0.12 to 6.4±0.95 Bqkg-1 in fish, 45.7±0.86 to 54.4±1.58 Bqkg-1 in crustacean and 104.3±3.44 to 293.8±10.04 Bqkg-1 in molluscs. Generally, the Po-210 concentration in the particulate phase was much higher than the dissolve phase. A clear seasonal pattern has been observed in the accumulation of Po- 210 with higher concentration during rainy season. Based on the statistical analysis, it can be concluded that the sources of pollutant at the Kapar coastal area is related to the organic parameters and terrestrial input. On the other hand, pH is identified as a predictor variable for the concentration of Po-210 at the study area. The content of Po- 210 and heavy metals in analyzed organisms varies according to the feeding habits and ecological niche. The impact assessment of seafood consumption has been carried out which revealed a potential health risk. This risk is assumed to be occurred for the higher rate of seafood consumption as well as the operation of coal burning power plant. These findings suggest that appropriate action needs to be done to mitigatepossible risks to human and environmental health.,Certification of Master's/ Doctorial Thesis" is not available
Pages:	332
Call Number:	QH543.5.A433 2012 tesis
Publisher:	UKM, Bangi
Appears in Collections:	Faculty of Science and Technology / Fakulti Sains dan Teknologi

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