CWE / 618/2017 当前世界环境 0125 - 888 0125 - 895 Enviro研究出版社 cwe - 30 - 31 - 000 凤眼莲中重金属的生物运输索姆斯。使用x射线荧光光谱法 1 高等研究科学技术研究所 环境科学与技术系(EST) Vallabh Vidyanagar 388120 印度 2015-04-30 10.12944 / CWE.10.1.02 10卷 问题1 09-21 摘要

本研究主要对凤眼莲 (Mart.)索姆斯。,collected from sacred palustrine habitat (Dakor Sacred Wetland – DSW) of Gujarat, to be used as a biomonitor (active) species, in comparison with sediment (abiotic monitor) for metal pollution. The results were obtained by analyzing elemental composition of rhizome, tuber, stem and leaves of native aquatic freshwater macrophyte (Eichhornia crassipes) along with bottom sediments for 17 heavy metals (Ti, Cr, Mn, Fe, Ni, Cu, Zn, Br, Rb, Sr, Y, Zr,  Nb, Ba, Pb, Sm, Ir) using Wavelength Dispersive X-Ray Fluorescence (WD-XRF) (Omania Software). The highest concentrations were observed in rhizome (12) in assay species of aquatic macrophyte, followed by tuber and stem (10 each), and least content was observed in leaf (8). Toxic heavy metals (Ti, Mn, Fe, Zn, Br, Sr, Zr, Pb) were detected, prone to cardiac, respiratory, musculo-skeletal and hepatic interferences in indigenous human clusters in and around studied wetland. Eichhornia crassipes was proved to be the best phytoaccumaltor species for heavy metals, exhibited by highest translocation factor for Zn, Sr, Zr, and Pb, and bioaccumulation factor for Mn, Rb, Sr and Fe metals. Present research indicates that E. crassipes (Mart.) Solms. is better remediator species for mobility of Pb, Zr and Sr metals. Thus, Eichhornia crassipes can be used for an effective abatement of contaminated aquatic sites.

关键字 Eichhornia凤眼莲 元素组成 易位因子 生物体内积累的因素 流动性指数
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