Speciation and Size Distribution of Copper and Zinc in Urban Road Runoff

被引：36

作者：

Li, He ^{[1
]}

Zuo, Xiao Jun ^{[1
]}

机构：

[1] Southeast Univ, Sch Civil Engn, Dept Municipal Engn, Nanjing 210096, Jiangsu, Peoples R China

来源：

BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY | 2013年 / 90卷 / 04期

关键词：

Urban runoff; Metals; Chemical fractionation; Particle size; Correlation; HIGHWAY RUNOFF; HEAVY-METAL; SEQUENTIAL EXTRACTION; STORMWATER RUNOFF; TRACE-METALS; 1ST FLUSH; SEDIMENTS; RAINFALL; WATER; BIOAVAILABILITY;

D O I：

10.1007/s00128-012-0953-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The impact of pollutants from road runoff on receiving water bodies becomes increasingly serious. However, less is known about the study on the distribution of metal speciation in particles with different sizes, and the interaction among metal speciation. Our research is aimed at investigating speciation distribution of copper (Cu) and zinc (Zn) in particles and the interaction among metal speciation. Stainless steel sieves in different sizes were used to accomplish filtration scheme. Sequential extraction procedures contained five steps for the chemical fractionation of metals. Flame atomic absorption spectrometry (Shimadzu, AA-6800) was used to determine the concentration of metal speciation. Speciation distribution of Cu was similar to that of Zn. Size distribution implied that small particles (< 75 mu m) determined the distribution for both Cu and Zn, as well as their migration. Correlation analysis indicated that the interaction among speciation of Cu was different from that of Zn.

引用

页码：471 / 476

页数：6

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