Geochemistry and environmental assessment of major and trace elements in the surface sediments of the Wei River, China

Journal of Environmental Monitoring : JEM
Y M HanZ Z Zhao

Abstract

The development of western China in the past decade has led to increased discharges of wastewater and river pollution. The Wei River is the largest tributary of the Huang He River, but its geochemistry has not been thoroughly investigated. Sixty-three bed-surface sediment samples were collected from the Wei and analyzed for 24 elements by WDXRF; objectives for the study were to investigate the geochemical properties of the sediments; identify sources, and assess pollution levels and environmental risks. Major and trace element concentrations were comparable with those in other large rivers in China, but potentially hazardous trace elements (PHTEs) were lower than in the Yangzi or Pearl Rivers; most likely due to dilution of contaminants by the large sand inflows into the Wei and a lower level of industrialization. Nonetheless, pollution and risk analyses demonstrate slight contamination of Cr, Mn, Nb, Ni and Zn, moderate contamination of Cu and Pb, and strong contamination of As at some locations. Adverse biological effects from Ni and Cu are possible and are likely from As. Statistical and spatial analyses indicate that agriculture runoff and industrial wastewater discharge contribute to the contamination of this river. A comp...Continue Reading

References

Sep 4, 2004·Journal of Environmental Monitoring : JEM·Valerie CappuynsAnne Devivier
May 12, 2005·The Science of the Total Environment·Han YongmingEric S Posmentier
May 12, 2007·Journal of Environmental Monitoring : JEM·Gijs Du LaingMarc G Verloo
Feb 28, 2009·Journal of Environmental Management·Lei LuoYong-Guan Zhu
Jul 7, 2011·Journal of Environmental Monitoring : JEM·Ana Judith Marmolejo-RodríguezVíctor René Magallanes-Ordóñez
Sep 16, 2011·Journal of Environmental Monitoring : JEM·Giulia MaistoAnna Alfani
Feb 1, 2012·Journal of Environmental Monitoring : JEM·Bina GuptaTripti Agarwal

Related Concepts

Environmental Monitoring
Trace Elements
Landfill Leachate
Water Pollution, Chemical
Sediments, Marine
Streams
Wastewater
Chromium
Copper
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