干旱区生态环境知识资源中心(Arid): Carbon influence on metal distribution in sediment of Amazonian macrotidal estuaries of northeastern Brazil

Arid

DOI	10.1007/s10661-019-7626-6
	Carbon influence on metal distribution in sediment of Amazonian macrotidal estuaries of northeastern Brazil
	Luz Santos, Thays Thayanne 1,2; Marins, Rozane Valente 2; da Silva Dias, Francisco Jose 3
通讯作者	Luz Santos, Thays Thayanne
来源期刊	ENVIRONMENTAL MONITORING AND ASSESSMENT
ISSN	0167-6369
EISSN	1573-2959
出版年	2019
卷号	191 期号:9
英文摘要	The present work aims to observe the spatial distribution of metals associated with carbon forms (fraction < 2 mm) in surface sediments of two macrotidal estuaries, Sao Marcos Bay and Anil River Estuary, which are located within the transition region between the Amazonian and the semi-arid northeast regions. Grain size, metal content (Al, Fe, Mn, Cu, Pb, Cr, Zn, and Ni), organic matter, and calcium carbonate content were determined. Grain size analyses showed the predominance of the sand-sized fraction < 2 mm due to the local hydrodynamic conditions. Anil River Estuary sediments exhibited high organic matter content due to both the mangrove outwelling and domestic sewage discharge. They also presented high calcium carbonate content as a result of abundant remnants of gastropod shells. Organic matter acted as the primary geochemical carrier for most metals in both estuaries, while calcium carbonate acted as the secondary carrier. Enrichment factors indicated Mn sediment contamination in Sao Marcos Bay and Fe, Pb, and Zn contamination in the Anil River Estuary. These results also suggest that Sao Marcos Bay is influenced by harbor activities, mostly ore shipment, whereas Anil River Estuary sediments are enriched in these metals as a result of domestic and hospital effluents reaching the urbanized drainage basin.
英文关键词	Geochemistry Urbanization Harbor activities Sao Marcos Bay Anil Estuary
类型	Article
语种	英语
国家	Brazil
收录类别	SCI-E
WOS记录号	WOS:000480460300002
WOS关键词	DISSOLVED ORGANIC-MATTER ; DE-JANEIRO STATE ; HEAVY-METALS ; GUANABARA BAY ; TRACE-METALS ; RIVER ; CONTAMINATION ; ELEMENTS ; FLUX
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215481
作者单位	1.Univ Fed Maranhao, Dept Oceanog & Limnol, Av Portugueses 1966, BR-65080805 Sao Luis, MA, Brazil; 2.Univ Fed Ceara, Marine Sci Inst LABOMAR, Av Abolicao 3207, BR-60165081 Fortaleza, Ceara, Brazil; 3.Univ Fed Maranhao, Marine Sci Inst ICMar, Av Portugueses 1966, BR-65080805 Sao Luis, MA, Brazil
推荐引用方式 GB/T 7714	Luz Santos, Thays Thayanne,Marins, Rozane Valente,da Silva Dias, Francisco Jose. Carbon influence on metal distribution in sediment of Amazonian macrotidal estuaries of northeastern Brazil[J],2019,191(9).
APA	Luz Santos, Thays Thayanne,Marins, Rozane Valente,&da Silva Dias, Francisco Jose.(2019).Carbon influence on metal distribution in sediment of Amazonian macrotidal estuaries of northeastern Brazil.ENVIRONMENTAL MONITORING AND ASSESSMENT,191(9).
MLA	Luz Santos, Thays Thayanne,et al."Carbon influence on metal distribution in sediment of Amazonian macrotidal estuaries of northeastern Brazil".ENVIRONMENTAL MONITORING AND ASSESSMENT 191.9(2019).