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The Phytoattenuation of the Soil Metal Contamination: The Effects of Plant Growth Regulators (GA3 and IAA) by Employing Wetland Macrophyte Vetiver and Energy Plant Sunflower | Abstract
ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology
Open Access

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Research Article

The Phytoattenuation of the Soil Metal Contamination: The Effects of Plant Growth Regulators (GA3 and IAA) by Employing Wetland Macrophyte Vetiver and Energy Plant Sunflower

K. F. Chen1, T. Y. Yeh2*, Y.H. Hsu2 and C.W. Chen3
1Department of Civil Engineering, National Chi Nan University, Taiwan
2Department of Civil and Environmental Engineering, National University of Kaohsiung, Taiwan
3Department of Marine Environmental Engineering, National Kaohsiung Marine University, Taiwan
Corresponding Author : Prof. T. Y. Yeh
National University of Kaohsiung
Department of Civil and Environmental Engineering
Kaohsiung 811, Taiwan
Tel: 886-7-591-9536
Fax: 886-7-591-9376
E-mail: [email protected]
Received November 18, 2011; Accepted February 25, 2012; Published February 27, 2012
Citation: Chen KF, Yeh TY, Hsu YH, Chen CW (2012) The Phytoattenuation of the Soil Metal Contamination: The Effects of Plant Growth Regulators (GA3 and IAA) by Employing Wetland Macrophyte Vetiver and Energy Plant Sunflower. J Environment Analytic Toxicol 2:125. doi: 10.4172/2161-0525.1000125
Copyright: © 2012 Chen KF, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The phytoattenuation, a novel green remediation concept, has been successfully demonstrated while employing vetiver and biostimulator (gibberellic acid GA3 and indol-3-acetic acid IAA) to gradually mitigate the soil [1] Cu levels. The effectiveness of stimulator GA3 and IAA was in the descending sequence GA3 > IAA. Biostimulator has been demonstrated plant growth enhancement and been employed for agricultural operation. The on-site tests demonstrated Cu levels were gradually decreasing during 4 months monitoring time periods. The soil metal level reduction achieved a satisfactory level which complied with local environmental standards. After more rounds of planting and harvesting, the soil metal concentration expected to be further dropped while on-site operation was executed. Green remediation concepts such as the phytoattenuation need to be taken as serious concern while the Earth has faced recent unpresdent damage Japan tsunami, Green house effect, unpredicted weather fluctuation worldwide, and serious endangered species issues.

Keywords

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