Write us. Support chat. Marine Pollution Bulletin, volume , pages Heavy metals contamination and risk assessment in sediments of Laucala Bay, Suva, Fiji. Francis S. Mani 1 ,. Surendra Prasad 1. Hide authors affiliations Show authors affiliations: 1 affiliation. Publication type : Journal Article. Publication date : Journal : Marine Pollution Bulletin.
SJR : 1. CiteScore : Impact factor : 5. ISSN : X, DOI: Copy DOI. Aquatic Science. The bioavailability of these metals was also assessed using the fractionation technique. The total concentrations of individual metals varied from 1. All the metals studied except Ni showed significant increase around the KWWTP effluent discharge sites indicating that prolong discharge of wastewater could be a major source of their accumulation in Laucala Bay.
The multivariate statistical analysis confirmed that Cd, Cu and Pb could be attributed to similar sources like wastewater effluent. The study confirmed that the spatial distribution of the metals in Laucala Bay was affected by the hydrodynamic of Laucala Bay as pollutants were dispersed from the point sources.
The Risk Assessment Code RAC assessed from the bioavailable fraction data confirmed that apart from Cd and Pb, the rest of the metals analysed had medium risk of toxicity. Owing to the persistent nature of metals and the results obtained from this study, there is a high probability of these metals to accumulate and increase in concentration in the future which could also lead to increase in their risk of toxicity to living beings.
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