气候变化领域集成服务门户(CCPortal): Spatial-temporal variation of heavy metals’ sources in the surface sediments of the Yangtze River Estuary

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DOI	10.1016/j.marpolbul.2018.12.010
	Spatial-temporal variation of heavy metals’ sources in the surface sediments of the Yangtze River Estuary
	Liu R.; Guo L.; Men C.; Wang Q.; Miao Y.; Shen Z.
发表日期	2019
ISSN	0025326X
起始页码	526
结束页码	533
卷号	138
英文摘要	In this study, positive matrix factorization, multilinear engine 2, and geographic information systems were used to characterize the spatial-temporal patterns of sources for nine heavy metals in the surface sediments of the Yangtze River Estuary in different seasons. Results showed that six sources were identified: agricultural pesticide, marine transportation, chemical factory wastewater, metal smelter waste, atmospheric deposition, and agricultural fertilizer. The proportions of sources were similar during the entire year but varied among the seasons. The differences in the proportions of agricultural pesticide between winter and other seasons were greater than 12%. Over 40% of the Cd concentration in most seasons was attributed to atmospheric deposition, while less than 5% in autumn. The impact strength of most sources, except marine transportation and metal smelter waste, decreased from the inner regions to the adjacent sea. The difference in the impact strength of agricultural pesticide was the largest throughout the study area. © 2018 Elsevier Ltd
英文关键词	Heavy metals; Multilinear Engine 2; Positive matrix factorization; Source apportionment; Spatial-temporal variation
语种	英语
scopus关键词	Agriculture; Atmospheric chemistry; Deposition; Factorization; Heavy metals; Impact strength; Marine engines; Matrix algebra; Meteorological problems; Pesticides; River pollution; Surficial sediments; Agricultural pesticides; Atmospheric depositions; Marine transportation; Multilinear Engine 2; Positive Matrix Factorization; Source apportionment; Spatial temporals; Yangtze River estuary; Smelting; arsenic; cadmium; chromium; copper; fertilizer; heavy metal; lead; manganese; mercury; nickel; pesticide; surface water; zinc; heavy metal; pesticide; algorithm; GIS; heavy metal; seasonal variation; source apportionment; spatial variation; surficial sediment; Article; atmospheric deposition; autumn; concentration (parameters); controlled study; estuary; geographic information system; seasonal variation; sediment; spatiotemporal analysis; spring; summer; traffic and transport; waste water; water pollution; winter; analysis; China; environmental monitoring; estuary; river; season; sediment; spatiotemporal analysis; water pollutant; China; Yangtze Estuary; China; Environmental Monitoring; Estuaries; Fertilizers; Geologic Sediments; Metals, Heavy; Pesticides; Rivers; Seasons; Spatio-Temporal Analysis; Waste Water; Water Pollutants, Chemical; Water Pollution, 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/150186
作者单位	State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, No. 19, Xinjiekouwai Street, Beijing, 100875, China
推荐引用方式 GB/T 7714	Liu R.,Guo L.,Men C.,等. Spatial-temporal variation of heavy metals’ sources in the surface sediments of the Yangtze River Estuary[J],2019,138.
APA	Liu R.,Guo L.,Men C.,Wang Q.,Miao Y.,&Shen Z..(2019).Spatial-temporal variation of heavy metals’ sources in the surface sediments of the Yangtze River Estuary.Marine Pollution Bulletin,138.
MLA	Liu R.,et al."Spatial-temporal variation of heavy metals’ sources in the surface sediments of the Yangtze River Estuary".Marine Pollution Bulletin 138(2019).