NDLI: Transport of heavy metals in the Huanghe River estuary, China

Content Provider	Springer Nature Link
Author	Wang, Yan Liu, Ru hai Zhang, Yu qing Cui, Xue qing Tang, Ai kun Zhang, Long jun
Copyright Year	2016
Abstract	Surface water samples were taken from the Huanghe River estuary in May and September 2009. Pb, Cu, Zn, Cd, As and Hg in dissolved and particulate phase, and physicochemical indexes of the water were determined to study the transport of metals. The results show that dissolved metals in river water increased significantly in 2009 compared to late 1980, and metal content in suspended particulate matter in the river is still low compared to the world river average. At the estuary, the levels of particulate heavy metals decrease seaward with increasing salinity and have significant positive correlation with suspended particulate matter (SPM) levels. The concentrations of dissolved Pb, Cu, Zn and As decrease as salinity levels increase, but the levels of dissolved Cd and Hg increase seaward with increasing salinity. The correlation analysis shows that SPM, salinity and DO are the important factors that controlled the spatial distribution of heavy metals. There is inverse linear relationship between metals’ log (K $_{D}$) for Pb, Cu, and Zn values and SPM. This relationship may be caused by Particle Concentration Effect (increased colloid concentration in the filtered fraction in proportion to the quantity of suspended particles). SPM, salinity, pH and DO have significant (p < 0.01) correlation with K $_{D}$ (partitioning coefficient) of Pb and Cu. SPM has also significant (p < 0.05) correlation with K $_{D}$ of Zn and Hg, and salinity has significant (p < 0.05) correlation with K $_{ D }$ of Zn and As. However, the K $_{D}$ of Cd has no relation to the physicochemical indexes which means the behavior of Cd in estuary is different. SPM and salinity are main parameters affecting the variance of K $_{D}$ in the estuary. Pollution and decrease of SPM in the upper reaches of the Huanghe have affected the transport behavior of trace elements at the estuary compared 1980.
Starting Page	1
Ending Page	11
Page Count	11
File Format	PDF
ISSN	18666280
Journal	Environmental Earth Sciences
Volume Number	75
Issue Number	4
e-ISSN	18666299
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-02-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Huanghe River estuary Heavy metals Transport SPM Geology Hydrology/Water Resources Geochemistry Environmental Science and Engineering Terrestrial Pollution Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Global and Planetary Change Earth-Surface Processes Soil Science Environmental Chemistry Pollution Geology Water Science and Technology

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