气候变化领域集成服务门户(CCPortal): Comprehensive study on metal contents and their ecological risks in beach sediments of KwaZulu-Natal province; South Africa

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DOI	10.1016/j.marpolbul.2019.110555
	Comprehensive study on metal contents and their ecological risks in beach sediments of KwaZulu-Natal province; South Africa
	Vetrimurugan E.; Shruti V.C.; Jonathan M.P.; Roy P.D.; Sarkar S.K.; Rawlins B.K.; Villegas L.E.C.
发表日期	2019
ISSN	0025326X
卷号	149
英文摘要	Sediment metal concentrations were assessed in five different beach regions (n = 183) of KwaZulu-Natal (KZN) province in South Africa. Metal distribution revealed that Cr, Cu, Mo, Cd, Zn, Hg and As exceed the background upper continental crust values suggesting their anthropogenic origin (mining, agricultural and industrial) apart from natural geological inputs (gold placer deposits and heavy minerals). Various geochemical indices (Geoaccumulation index, Enrichment factor and Degree of contamination) confirmed that the sediment samples are extremely contaminated with Cr, Cd and Hg. Further, Hg and Cd were main contributors (60–90%) to the ecological threat in sediments. Hazard index estimated a high hazard potential of Hg in near future. Finally, present study together with our previous results portray the status of KZN coast with special significance to Hg contamination/enrichment. Thus, future researches are recommended to investigate the environmental and human health implications of mercury exposure in this coastal province. © 2019 Elsevier Ltd
英文关键词	Ecological risks; Geochemical indices; Metal concentration; Sediment; South Africa
语种	英语
scopus关键词	Beaches; Ecology; Geochemistry; Gold deposits; Hazards; Metals; Minerals; Placer mining; Placers; Anthropogenic origin; Ecological risks; Geo-accumulation index; Geochemical indices; KwaZulu-Natal Province , South Africa; Metal concentrations; South Africa; Upper continental crust; Sediments; arsenic; cadmium; chromium; copper; mercury; molybdenum; zinc; mercury; metal; beach; coastal sediment; concentration (composition); ecology; geochemistry; metal; sediment pollution; agricultural waste; Article; biogeochemistry; controlled study; degree of contamination; environmental enrichment; environmental parameters; geoaccumulation index; industrial waste; mining; risk factor; seashore; sediment; South Africa; agriculture; analysis; chemistry; ecotoxicology; environmental monitoring; food chain; human; procedures; sediment; swimming; toxicity; water pollutant; KwaZulu-Natal; South Africa; Agriculture; Bathing Beaches; Ecotoxicology; Environmental Monitoring; Food Chain; Geologic Sediments; Humans; Mercury; Metals; Mining; South Africa; 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/149531
作者单位	Department of Hydrology, University of Zululand, Private Bag x1001, KwaDlangezwa, 3886, South Africa; Centro Mexicano para la Producción más Limpia (CMP+L), Instituto Politécnico Nacional (IPN), Av. Acueducto s/n, Col. Barrio la Laguna Ticomán, Del Gustavo A. Madero, Ciudad de México, C.P. 07340, Mexico; Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio la Laguna Ticomán, Del. Gustavo A. Madero, Ciudad de México, C.P.07340, Mexico; Instituto de Geología, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Del. Coyoacán, Ciudad de México, C.P. 04510, Mexico; Department of Marine Science, University of Calcutta, 35 Ballygunge Circular Road, Kolkata, 700019, India
推荐引用方式 GB/T 7714	Vetrimurugan E.,Shruti V.C.,Jonathan M.P.,et al. Comprehensive study on metal contents and their ecological risks in beach sediments of KwaZulu-Natal province; South Africa[J],2019,149.
APA	Vetrimurugan E..,Shruti V.C..,Jonathan M.P..,Roy P.D..,Sarkar S.K..,...&Villegas L.E.C..(2019).Comprehensive study on metal contents and their ecological risks in beach sediments of KwaZulu-Natal province; South Africa.Marine Pollution Bulletin,149.
MLA	Vetrimurugan E.,et al."Comprehensive study on metal contents and their ecological risks in beach sediments of KwaZulu-Natal province; South Africa".Marine Pollution Bulletin 149(2019).