NDLI: Heavy metals in Changjiang estuarine and offshore sediments: responding to human activities

Content Provider	Springer Nature Link
Author	Dong, Aiguo Zhai, Shikui Zabel, Matthias Yu, Zenghui Zhang, Huaijing Liu, Feifei
Copyright Year	2012
Abstract	The Changjiang (Yangtze) estuarine and offshore sediments were analyzed for total heavy metals concentrations and chemical fractions. Distributions of heavy metals show typical banded diffusion pattern, with high concentrations near the river mouth and following a decreasing trend in the offshore direction. According to chemical fractions, Fe/Mn oxide fraction is the major non-residual fraction in the Changjiang estuarine and offshore sediments. Higher percentage of non-residual fraction of Pb implies that, the industrial contaminations transported via the atmosphere and river input, may affect the non-residual fraction of heavy metals. Over past fifteen years, the concentration of Pb normalizing to Al presents significant increasing trend, corresponding to the effect of human activities. By comparison of heavy metals fractions in 2003 to 2006, it has been realized that increasing water and sediment may cause a higher percentage non-residual fraction of Cu in the southern part of offshore muddy sediments.
Starting Page	88
Ending Page	101
Page Count	14
File Format	PDF
ISSN	0253505X
Journal	Acta Oceanologica Sinica
Volume Number	31
Issue Number	2
e-ISSN	18691099
Language	English
Publisher	The Chinese Society of Oceanography
Publisher Date	2012-04-13
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	sediment heavy metal fraction Changjiang (Yangtze) River Engineering Fluid Dynamics Ecology Climate Change Oceanography Marine & Freshwater Sciences Environmental Chemistry
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Oceanography

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