Distribution of heavy metals in soil and accumulation in plants at an agricultural area of Umudike, Nigeria

被引：10

作者：

Ogbonna, Princewill C. ^{[1
]}

Odukaesieme, Chibuike ^{[1
]}

Teixeira da Silva, Jaime A. ^{[2
]}

机构：

[1] Michael Okpara Univ Agr, Dept Forestry & Environm Management, Umudike, Nigeria

[2] Kagawa Univ, Takamatsu, Kagawa 760, Japan

来源：

CHEMISTRY AND ECOLOGY | 2013年 / 29卷 / 07期

关键词：

heavy metals; soil; agrochemicals; plants; Umudike; Nigeria;

D O I：

10.1080/02757540.2013.810721

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

This study assessed the distribution of heavy metals in soil and their subsequent accumulation in plants at a site at Umudike, Nigeria, that had been contaminated by agrochemicals. Soil and plant samples were analysed for zinc (Zn), chromium (Cr) and cadmium (Cd). The highest concentrations of Zn (251.50 mg/kg) and Cd (61.33 mg/kg) were obtained at a soil depth of 0-10 cm. The highest concentrations of Zn (16.52 mg/kg), Cd (27.12 mg/kg) and Cr (164.07 mg/kg) were accumulated by Baphia nitida. The levels of Cd, Cr and Zn in soil were 27.97-61.33, 24.97-45.43 and 148.57-251.50 mg/kg, and their concentrations in B. nitida were 16.18-27.13, 97.99-164.07 and 0.10-16.52 mg/kg, respectively. There were significant correlations between Cd and Cr and Cd and Zn in soil, as well as between Cd and Cr in plants. The concentration of Cd in soil reflected a state of pollution relative to Dutch criteria for soil and the FAO/WHO Codex Alimentarius Commission.

引用

页码：595 / 603

页数：9

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