The associations of heavy metals with crystalline iron oxides in the polluted soils around the mining areas in Guangdong Province, China

文献类型： 外文期刊

第一作者： Yin, Hui

作者： Yin, Hui;Tan, Nianhao;Wang, Juju;Feng, Xionghan;Qiu, Guohong;Tan, Wenfeng;Liu, Fan;Liu, Chuanping;Liang, Xiaoliang;Qu, Mingkai

作者机构：

关键词： Soil pollution;Iron oxyhydroxides;Selective sequential extraction procedures;Metal fraction;Mobility

期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： In current selective sequential extraction (SSE) methods, heavy metals associated well-crystallized iron oxyhydroxides are not well defined and considered, and usually fall into residual forms, which actually make their mobility and environmental risk underestimated. This study compared various fractions of heavy metals in samples of mining tailings and nearby soils under different land uses in Guangdong Province of China. Iron oxides in these soils were mainly Al-substituted goethites and/or hematites. Independent of the land uses, the percentages of various Cd fractions in the soils decrease in the order of well-crystallized iron oxyhydroxides-associated (27.2-91.2%) > residual (2.1-37.0%) > reducible Fe-Mn oxides (3.2-45.7%) > exchangeable (1.0-28.2%) > organic-associated form (0-5.1%). Pb mainly existes in the residual fraction (25.9-74.5%), followed by crystalline iron oxyhydroxides-associated (0.4-69.0%) and reducible fractions (2.4-40.4%). Zn mainly exists in the residual fraction (25.4-85.9%), followed by the well-crystallized iron oxyhydroxides-associated fraction (6.4-55.0%). However, Cu mainly existes in the residual form and the fractionation of Cu varies obviously between samples. The association of these metals with crystalline iron oxyhydroxides in the soils decreases in the sequence of Cd > Pb > Zn > Cu. These results suggest that in heavy-metal-polluted weathered soils in tropical and subtropical areas enriched with iron oxides, it is essential to assess potential bioavailability and toxicity of heavy metals bound to well-crystallized iron oxyhydroxides with appropriate procedures in the fractionation measurement. The modified Tessier method present here can be used to quantify the fractions of heavy metals in such areas. (C) 2016 Elsevier Ltd. All rights reserved.

分类号： X5

  • 相关文献

[1]Antimony release from contaminated mine soils and its migration in four typical soils using lysimeter experiments. Zhao, Long,Hou, Hong,Shangguan, Yu-xian,Qin, Yusheng,Zhang, Naiming.

[2]Modification of Flight and Locomotion Performances, Respiratory Metabolism,and Transcriptome Expression in the Lady Beetle Harmonia axyridis through Sublethal Pesticide Exposure. Xiao, Da,Tan, Xiaoling,Wang, Wenjuan,Zhang, Fan,Wang, Su,Desneux, Nicolas. 2017

[3]Effects of two different organic amendments addition to soil on sorption-desorption, leaching, bioavailability of penconazole and the growth of wheat (Triticum aestivum L.). Jiang, Lei,Jia, Lin Xian,Liu, Ying,Pan, Bo,Yang, Yi,Lin, Yong,Jiang, Lei,Lin, Yong,Lin, Jing Ling.

[4]Analysis of Heavy Metal Sources for Vegetable Soils from Shandong Province, China. Liu Zhao-hui,Wei Jian-lin,Wang Yan-qin,Jiang Li-hua,Dong Liang,Zhang Yu-feng,Wang Li-li. 2011

[5]Toxicity and accumulation of copper and nickel in maize plants cropped on calcareous and acidic field soils. Guo, X. Y.,Zuo, Y. B.,Wang, B. R.,Li, J. M.,Ma, Y. B..

[6]Effects of Double Harvesting on Heavy Metal Uptake by Six Forage Species and the Potential for Phytoextraction in Field. Li Ningyu,Guo Bin,Li Hua,Fu Qinglin,Feng Renwei,Ding Yongzhen. 2016

[7]An inventory of trace element inputs to agricultural soils in China. Luo, Lei,Ma, Yibing,Wei, Dongpu,Zhang, Shuzhen,Zhu, Yong-Guan.

[8]Different influences of field aging on nickel toxicity to Folsomia candida in two types of soil. Liu, Yu-Rong,Li, Jing,He, Ji-Zheng,Zheng, Yuan-Ming,Ma, Yi-Bing.

[9]The Key Technology Research on Soil Pollution of Agro-environment and Information Regulation in Agricultural Materials Using. Wang, Lingling,Fang, Jihua,Luo, Hongxia,Li, Yuping,Wang, Lingling,Fang, Jihua,Luo, Hongxia,Li, Yuping. 2015

[10]Effects of landscape heterogeneity on the elevated trace metal concentrations in agricultural soils at multiple scales in the Pearl River Delta, South China. Li, Cheng,Li, Fangbai,Cheng, Jiong,Wu, Zhifeng.

[11]Suppressive effects of thermal-treated oyster shells on cadmium and copper translocation in maize plants. Wang, Chunyan,Alidoust, Darioush,Li, Maosong,Alidoust, Darioush,Isoda, Akihiro.

作者其他论文 更多>>

微信小程序