气候变化领域集成服务门户(CCPortal): Sediment clays are trapping heavy metals in urban lakes: An indicator for severe industrial and agricultural influence on coastal wetlands at the Mediterranean coast of Egypt

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DOI	10.1016/j.marpolbul.2019.110816
	Sediment clays are trapping heavy metals in urban lakes: An indicator for severe industrial and agricultural influence on coastal wetlands at the Mediterranean coast of Egypt
	Keshta A.E.; Shaltout K.H.; Baldwin A.H.; Sharaf El-Din A.A.
发表日期	2020
ISSN	0025326X
卷号	151
英文摘要	Coastal wetlands of the northern coast of Egypt have been impacted with higher loads of runoff, especially the large urbanized lakes of the Nile deltaic coast. Five urban lakes spanning the northern coast of Egypt (from east to west: Bardawil, Manzala, Burullus, Edku, and Mariut) were sampled for quantifying concentrations of heavy metals in their sediment and plant tissues. Sediment and plant tissues in lake Bardawil were the least contaminated, and the other lakes were moderately to highly polluted with Ni, Co, Cr, Pb, Zn, and Cu. Edku had the highest concentrations of Co, Cr, and Cu (19.83, 45.42 and 68.60 mg kg−1, respectively). The proportion of clay in sediment was significantly and positively correlated with Co and Ni in sediment (r = 0.7 and P ≤ 0.001), suggesting an important role of clay cation exchange capacity in the sorption of metals and removing them from the water column. © 2019 Elsevier Ltd
英文关键词	Clay; Ecosystem services; Egypt; Eichhornia crassipes; Heavy metals; Urban lakes
语种	英语
scopus关键词	Clay; Ecosystems; Heavy metals; Histology; Lakes; Sediments; Tissue; Wetlands; Cation exchange capacities; Coastal wetlands; Ecosystem services; Egypt; Eichhornia crassipes; Mediterranean coasts; Urban lake; Water columns; Lake pollution; chromium; cobalt; copper; heavy metal; lead; nickel; zinc; angiosperm; clay; coastal wetland; concentration (composition); ecosystem service; heavy metal; sediment pollution; sediment trap; adsorption; Article; cation exchange; Ceratophyllum demersum; coastal waters; concentration (parameter); controlled study; Echinochloa; Echinochloa stagnina; Egypt; Eichhornia crassipes; environmental impact; heavy metal removal; lake; nonhuman; plant; plant tissue; runoff; sediment; urban area; water pollution; wetland; chemistry; clay; environmental monitoring; sediment; water pollutant; wetland; Egypt; Mediterranean Coast [Egypt]; Eichhornia crassipes; Clay; Egypt; Environmental Monitoring; Geologic Sediments; Lakes; Metals, Heavy; Water Pollutants, Chemical; Wetlands
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/149257
作者单位	Botany Department, College of Science, Tanta University, Tanta, 31111, Egypt; Department of Environmental Science and Technology, College of Agriculture and Natural Resources, University of Maryland, College Park, MD 20742, United States
推荐引用方式 GB/T 7714	Keshta A.E.,Shaltout K.H.,Baldwin A.H.,et al. Sediment clays are trapping heavy metals in urban lakes: An indicator for severe industrial and agricultural influence on coastal wetlands at the Mediterranean coast of Egypt[J],2020,151.
APA	Keshta A.E.,Shaltout K.H.,Baldwin A.H.,&Sharaf El-Din A.A..(2020).Sediment clays are trapping heavy metals in urban lakes: An indicator for severe industrial and agricultural influence on coastal wetlands at the Mediterranean coast of Egypt.Marine Pollution Bulletin,151.
MLA	Keshta A.E.,et al."Sediment clays are trapping heavy metals in urban lakes: An indicator for severe industrial and agricultural influence on coastal wetlands at the Mediterranean coast of Egypt".Marine Pollution Bulletin 151(2020).