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首页> 外文期刊>Pakistan journal of botany >Heavy metal contamination and accumulation in soil and wild plant species from industrial area of Islamabad, Pakistan
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Heavy metal contamination and accumulation in soil and wild plant species from industrial area of Islamabad, Pakistan

机译：巴基斯坦伊斯兰堡工业区土壤和野生植物物种中的重金属污染和积累

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This study was designed to assess total contents of 6 toxic metals viz., Pb, Cu, Zn, Co, Ni, and Cr in the soil and plant samples of 16 plant species collected from industrial zone of Islamabad, Pakistan. The concentration, transfer and accumulation of metals from soil to roots and shoots was evaluated in terms of Biological Concentration Factor (BCF), Translocation Factor (TF) and Bioaccumulation Coefficient (BAC). Total metal concentrations of Pb, Zn, Cu, Co, Ni, and Cr in soils varied between 2.0-29.0, 61.9-172.6, 8.9 to 357.4, 7.3-24.7, 41.4-59.3, and 40.2-927.2 mg/kg. Total metal concentrations pattern in roots were: CuCrZnNiPbCo. Grasses showed relatively higher total Zn concentration. Accumulation of Cu was highest in shoots followed by Zn, Cr, Pb, Co and Ni. None of plant species were identified as hyperaccumulator; however, based on BCFs, TFs, and BACs values, most of the studied species have potential for phytostabilization and phytoextraction. Parthenium hysterophoirus L., and Amaranthus viridis L., is suggested for phytoextraction of Pb and Ni, whereas, Partulaca oleracea L., Brachiaria reptans (L.) Gard. & Hubb., Solanum nigrum L., and Xanthium stromarium L., for phytostabilization of soils contaminated with Pb and Cu.
机译：这项研究旨在评估从巴基斯坦伊斯兰堡工业区收集的16种植物的土壤和植物样品中6种有毒金属的总含量，即Pb，Cu，Zn，Co，Ni和Cr。从生物浓度因子（BCF），转运因子（TF）和生物蓄积系数（BAC）方面评估了金属从土壤到根和芽的浓度，转移和积累。土壤中Pb，Zn，Cu，Co，Ni和Cr的总金属浓度在2.0-29.0、61.9-172.6、8.9至357.4、7.3-24.7、41.4-59.3和40.2-927.2 mg / kg之间变化。根中的总金属浓度模式为：Cu> Cr> Zn> Ni> Pb> Co。草显示出较高的总锌浓度。枝条中的铜积累最高，其次是锌，铬，铅，钴和镍。没有一种植物被鉴定为超蓄积;但是，基于BCF，TF和BAC值，大多数研究物种具有植物稳定化和植物提取的潜力。有人建议将Parthenium hysterophoirus L.和Amaranthus viridis L.用于植物提取Pb和Ni，而Partulaca oleracea L.，Bracharia reptans（L.）Gard。 ＆Hubb。，Solanum nigrum L.和Xanthium stromarium L.，用于对被Pb和Cu污染的土壤进行植物稳定化处理。

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