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DOI	10.1016/j.marpolbul.2020.111238
	Heavy metals contamination and risk assessment in sediments of Laucala Bay; Suva; Fiji
	Pratap A.; Mani F.S.; Prasad S.
发表日期	2020
ISSN	0025326X
卷号	156
英文摘要	Spatial distribution of metals (Cd, Cr, Cu, Fe, Ni, Pb and Zn) were studied in the surficial sediments from 20 sampling sites of Laucala Bay Suva, Fiji to assess the significance of wastewater effluent discharged from Kinoya Wastewater Treatment Plant (KWWTP) into Laucala Bay as a major source. The bioavailability of these metals was also assessed using the fractionation technique. The total concentrations of individual metals varied from 1.7–6.0 mg/kg Cd, 24.2–49.1 mg/kg Cr, 54–170 mg/kg Cu, 13,733–68,492 mg/kg Fe, 23.5–34.8 mg/kg Ni, 50–80 mg/kgPb and 15.5–157.0 mg/kg Zn. 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. © 2020 Elsevier Ltd
英文关键词	Bioavailability; Fractionation; Metals; Sediments; Wastewater effluent
语种	英语
scopus关键词	Biochemistry; Effluent treatment; Effluents; Heavy metals; Lead removal (water treatment); Multivariant analysis; Spatial distribution; Surficial sediments; Toxicity; Wastewater treatment; Bioavailable fraction; Distribution of metal; Effluent discharge; High probability; Multivariate statistical analysis; Risk assessment code; Wastewater effluents; Wastewater treatment plants; Risk assessment; cadmium; chromium; copper; iron; lead; nickel; zinc; heavy metal; bioavailability; chemical composition; concentration (composition); effluent; heavy metal; isotopic fractionation; marine sediment; pollutant source; risk assessment; sediment pollution; spatial distribution; surficial sediment; trace element; Article; bay; bioavailability; concentration (parameter); controlled study; dispersion; ecotoxicity; effluent; Fiji; fractionation; geographic distribution; hydrodynamics; probability; risk assessment; sediment; spatial analysis; statistical analysis; waste water; waste water treatment plant; water contamination; bay; China; environmental monitoring; risk assessment; sediment; water pollutant; Fiji; Laucala Bay; Suva; Viti Levu; Bays; China; Environmental Monitoring; Fiji; Geologic Sediments; Metals, Heavy; Risk Assessment; Water Pollutants, Chemical
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/148930
作者单位	School of Biological and Chemical Sciences, Faculty of Science, Technology and Environment, University of the South Pacific, Suva, Fiji
推荐引用方式 GB/T 7714	Pratap A.,Mani F.S.,Prasad S.. Heavy metals contamination and risk assessment in sediments of Laucala Bay; Suva; Fiji[J],2020,156.
APA	Pratap A.,Mani F.S.,&Prasad S..(2020).Heavy metals contamination and risk assessment in sediments of Laucala Bay; Suva; Fiji.Marine Pollution Bulletin,156.
MLA	Pratap A.,et al."Heavy metals contamination and risk assessment in sediments of Laucala Bay; Suva; Fiji".Marine Pollution Bulletin 156(2020).