气候变化领域集成服务门户(CCPortal): Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa; Portugal

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DOI	10.1016/j.marpolbul.2019.110533
	Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa; Portugal
	Sousa C.A.M.; Delgado J.; Szalaj D.; Boski T.
发表日期	2019
ISSN	0025326X
卷号	149
英文摘要	Metal history in a natural system was described since the early Holocene by analysing the preserved subsurface sediment record and present-day surface sediments. Normalized geochemical data from six sediment cores (129 samples) was compared with 28 surface samples. Pre-anthropic sedimentary environments allowed the definition of local natural Background Values. Enrichment Factors were then used for elements discrimination in terms of natural and anthropogenic inputs to the system. While subsurface results displayed a similar behaviour in all cores, pointing to largely undisturbed system, surface sediments show significant contamination, with high enrichment factors for As, Cu, Pb, and Zn. Other metal pollutants have generally low enrichment values, suggesting natural conditions. Surface results were reproduced as metal enrichment maps which evidenced anthropogenic sources in specific locations. This work reveals the importance of combining subsurface and surface geochemical data with mapping techniques in order to better evaluate the environmental quality of a natural system. © 2019 Elsevier Ltd
英文关键词	Anthropogenic sources; Geochemistry; GIS-analysis; Metal contamination; Ria Formosa; Sediments
语种	英语
scopus关键词	Geochemistry; Quality control; Sediments; Surficial sediments; Anthropogenic inputs; Anthropogenic sources; Background concentration; Environmental quality; GIS analysis; Metal contamination; Ria formosa; Sedimentary environment; Metals; arsenic; copper; lead; zinc; metal; anthropogenic source; concentration (composition); enrichment; GIS; heavy metal; Holocene; lacustrine deposit; sediment chemistry; Article; concentration (parameter); controlled study; dry weight; environmental enrichment; environmental monitoring; geochemistry; Holocene; limit of detection; measurement accuracy; optical spectroscopy; particle size; Portugal; sediment; chemistry; geographic information system; procedures; sediment; water pollutant; Faro [Portugal]; Portugal; Ria Formosa; Environmental Monitoring; Geographic Information Systems; Geologic Sediments; Metals; Portugal; 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/149559
作者单位	Centre of Marine and Environmental Research (CIMA), University of Algarve, Portugal; Universidad Pablo de Olavide, Facultad de CCEE, Dpto. de Medios Físicos, Químicos y Naturales, Spain; University of Lisbon, Faculty of Science, Portugal
推荐引用方式 GB/T 7714	Sousa C.A.M.,Delgado J.,Szalaj D.,et al. Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa; Portugal[J],2019,149.
APA	Sousa C.A.M.,Delgado J.,Szalaj D.,&Boski T..(2019).Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa; Portugal.Marine Pollution Bulletin,149.
MLA	Sousa C.A.M.,et al."Holocene background concentrations and actual enrichment factors of metals in sediments from Ria Formosa; Portugal".Marine Pollution Bulletin 149(2019).