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Heavy Metal Accumulation in Common Aquatic Plants in Rivers and Lakes in the Taihu Basin

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  • Li Bai

    (Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China
    School of Geographic and Environmental Sciences, Tianjin Normal University, Tianjin 300387, China)

  • Xiao-Long Liu

    (Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China
    School of Geographic and Environmental Sciences, Tianjin Normal University, Tianjin 300387, China)

  • Jian Hu

    (The State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China)

  • Jun Li

    (Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China)

  • Zhong-Liang Wang

    (Tianjin Key Laboratory of Water Resources and Environment, Tianjin Normal University, Tianjin 300387, China
    School of Geographic and Environmental Sciences, Tianjin Normal University, Tianjin 300387, China)

  • Guilin Han

    (School of Scientific Research, China University of Geosciences (Beijing), Beijing 100083, China)

  • Si-Liang Li

    (Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China)

  • Cong-Qiang Liu

    (Institute of Surface-Earth System Science, Tianjin University, Tianjin 300072, China
    The State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China)

Abstract

We investigated the concentrations of 10 heavy metals in Potamogeton malaianus , Nymphoides peltata , Eichhornia crassipes , and Hydrilla verticillata to evaluate their potential to bioaccumulate heavy metals and related influencing factors in Taihu Lake. Enrichment factor (EF) values of Cu, Cr, Mn, Ni, Zn, Co, Pb, and V were above 2.0, indicating moderate to significant contamination in sediment. Most of Ti, V, Cr, Mn, and Ni in P. malaianus , E. crassipes , and H. verticillata and V in N. peltata were within excess/toxic level in plants, but higher than normal level. Even though no aquatic plants in this study were identified as a hyperaccumulator, relatively higher concentrations in aquatic plants were found in Taihu Lake than have been found in other previous studies. Heavy metal in submerged plants, especially in their stems, seemed to be more closely related to metals in water and sediment than those in floating-leaf plants. Ratios of metals in stem versus leaves in all plants ranged from 0.2 to 25.8, indicating various accumulation capabilities of plant organs. These findings contribute to the application of submerged aquatic plants to heavy metal removal from moderately contaminated lakes.

Suggested Citation

  • Li Bai & Xiao-Long Liu & Jian Hu & Jun Li & Zhong-Liang Wang & Guilin Han & Si-Liang Li & Cong-Qiang Liu, 2018. "Heavy Metal Accumulation in Common Aquatic Plants in Rivers and Lakes in the Taihu Basin," IJERPH, MDPI, vol. 15(12), pages 1-12, December.
    • Handle: RePEc:gam:jijerp:v:15:y:2018:i:12:p:2857-:d:190542
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    References listed on IDEAS

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    1. Yong Niu & Wei Jiao & Hui Yu & Yuan Niu & Yong Pang & Xiangyang Xu & Xiaochun Guo, 2015. "Spatial Evaluation of Heavy Metals Concentrations in the Surface Sediment of Taihu Lake," IJERPH, MDPI, vol. 12(12), pages 1-12, November.
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    Cited by:

    1. Songtao Liu & Furong Yu & Jianuo Zhang, 2022. "Heavy-Metal Speciation Distribution and Adsorption Characteristics of Cr (VI) in the Soil within Sewage Irrigation Areas," IJERPH, MDPI, vol. 19(10), pages 1-18, May.
    2. Elżbieta Skorbiłowicz & Mirosław Skorbiłowicz & Urszula Tarasiuk & Magdalena Korzińska, 2021. "Cadmium, Chromium, and Cobalt in the Organs of Glyceria maxima and Bottom Sediments of the Pisa River and Its Tributaries (Poland)," IJERPH, MDPI, vol. 18(19), pages 1-18, September.
    3. Xuexia Huang & Dinggui Luo & Xiangxin Chen & Lezhang Wei & Yu Liu & Qihang Wu & Tangfu Xiao & Xiaotao Mai & Guowei Liu & Lirong Liu, 2019. "Insights into Heavy Metals Leakage in Chelator-Induced Phytoextraction of Pb- and Tl-Contaminated Soil," IJERPH, MDPI, vol. 16(8), pages 1-14, April.

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