Distribution of heavy metals and metalloids in bulk and particle size fractions of soils from coal-mine brownfield and implications on human health

Chemosphere ◽  
2017 ◽  
Vol 172 ◽  
pp. 505-515 ◽  
Author(s):  
Hongxia Li ◽  
Hongbing Ji ◽  
Chunjing Shi ◽  
Yang Gao ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Human Health ◽  
Coal Mine ◽  
Metals And Metalloids ◽  
Size Fractions ◽  
Particle Size Fractions ◽  
Heavy Metals And Metalloids

scholarly journals Partitioning of heavy metals in different particle-size fractions of soils from former mining and smelting locations in Austria

2021 ◽  
Vol 10 (2) ◽  
pp. 123-131
Author(s):  
Anto JELECEVİC ◽  
Manfred SAGER ◽  
Daniel VOLLPRECHT ◽  
Markus PUSCHENREİTER ◽  
Peter LİEBHARD
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Size Fractions ◽  
Particle Size Fractions ◽  
Mining And Smelting

Assessment of sediment toxicity by metal speciation in different particle-size fractions of river sediment

2003 ◽  
Vol 47 (7-8) ◽  
pp. 233-241 ◽  
Author(s):  
J.G. Lin ◽  
S.Y. Chen ◽  
C.R. Su
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Aquatic Ecosystem ◽  
Metal Speciation ◽  
Sediment Toxicity ◽  
Clay Fraction ◽  
Potential Toxicity ◽  
Size Fractions ◽  
Particle Size Fractions ◽  
Mn Oxide

Mobility and toxicity of metals associated with sediments are generally affected by metal speciation and granular compositions. Due to the various speciation patterns of heavy metals in sediments, it is not reliable to assess the potential toxicity of heavy metals on the aquatic environment with the total concentrations of heavy metals in sediments. The purposes of this study were to investigate the distribution of metal speciation in different particle-size fractions of sediments collected from two rivers (the Ke-Ya River and Ell-Ren River) in Taiwan, and to assess their potential toxicity to the aquatic ecosystem. Metals in the exchangeable, carbonate-bound and Fe/Mn oxide-bound forms obtained by sequential extraction were considered to be mobile and related with anthropogenic pollution. The degree of metal pollution and potential toxicity of sediments were higher in the lower reaches of both rivers. The metal speciation in sediments had a bimodal distribution over particle-size fractions. Heavy metals were subject to accumulation in the silt/clay fraction (<25μmm) and coarse sand (420-2,000μmm). By normalizing the sum of the exchangeable, carbonate-bound, and Fe/Mn oxide-bound metals, it suggested that the potential toxicity to the aquatic ecosystem was caused by the fine sediments as well as coarse sediments.

Heavy Metals in Particle-Size Fractions of Xuzhou Urban Topsoils

2013 ◽  
Vol 14 (2) ◽  
pp. 155-162 ◽  
Author(s):  
Xue Song Wang ◽  
Peng Zhang ◽  
Hong Ying Zhou ◽  
Jing Fu
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Size Fractions ◽  
Particle Size Fractions ◽  
Urban Topsoils
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