Distribution features and controls of heavy metals in surface sediments from the riverbed of the Ningxia-Inner Mongolian reaches, Yellow River, China

Chemosphere
Qingyu GuanAo Cai

Abstract

Fifty-six riverbed surface sediment (RSS) samples were collected along the Ningxia-Inner Mongolian reaches of the Yellow River (NIMYR). These samples were analyzed to determine their heavy metal concentrations (Co, Cr, Ni, Cu, V and Zn), grain sizes, sediment sources and the causes of their heavy metal contamination. The cumulative distribution functions of the heavy metals in RSS of these reaches are plotted to identify the geochemical baseline level (GBL) of each element and determine the average background concentration of each heavy metal. Principal component analysis and hierarchical cluster analysis are conducted based on the grain sizes of RSS, and the samples are classified into two groups: coarse grained samples (CGS) and fine grained samples (FGS). The degree of heavy metal contamination for each sample is identified by its enrichment factor (EF). The results reveal that the coarse particle component (medium sand and coarse sand) in the bed materials is chiefly from the bordering deserts along the Yellow River. The clay and silt in the bed materials chiefly originate from the upper reaches of the Yellow River, and the fine sand is identified as a hybrid sediment derived from the upper reaches of the Yellow River and t...Continue Reading

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Citations

Mar 24, 2016·International Journal of Environmental Research and Public Health·Shibao LuLiang Pei
Aug 11, 2016·The Science of the Total Environment·Qingyu GuanMin Lu
Aug 12, 2016·Environmental Science and Pollution Research International·Sanja SakanDragana Đorđević
Aug 31, 2016·Environmental Monitoring and Assessment·Siong Fong SimJongkar Grinang
Sep 24, 2016·Environmental Science and Pollution Research International·Qingyu GuanMin Lu
Nov 12, 2016·Environmental Science and Pollution Research International·Jinjun LiuYouzhi Dai
Mar 9, 2019·Bulletin of Environmental Contamination and Toxicology·Maolan WangJinhu Lai
Mar 8, 2020·International Journal of Environmental Research and Public Health·Huan LiYanchun Peng
Apr 3, 2020·Environmental Science. Processes & Impacts·Dong PengTing Lei
May 31, 2018·Environmental Science and Pollution Research International·Qingyu GuanZeyu Liu
Jun 9, 2017·Environmental Science and Pollution Research International·Qingli ChengXudong Li
Dec 13, 2017·Environmental Science and Pollution Research International·Priyanka MondalSantosh Kumar Sarkar
Mar 3, 2021·Environmental Science and Pollution Research International·Elif KucukUlku Yetis
Mar 25, 2021·Bulletin of Environmental Contamination and Toxicology·Changzhong LiWenjie Jin
Jul 16, 2021·Biological Trace Element Research·Maryam Mirzaei VandKhanghahRasoul Ghorbani

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