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Ecological Risk Assessment of EDTA-Assisted Phytoremediation of Cd Under Different Cultivation Systems

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Abstract

A long-term field experiment was designed to assess remediation efficiency and ecological risk of phytoremediation of Cd under different cultivation systems with or without ethylene diamine tetraacetic acid (EDTA). EDTA can significantly improve the phytoremediation effectiveness of a historically polluted e-waste dismantling site through enhancing Cd uptake by plants in all cultivation systems along with higher ecological risks to different receptors especially in the presence of Cicer arietinum (chickpea). Moisture content at each layer of soil profile under Eucalyptus globules L. cultivated sites was consistently lower than under chickpea monoculture as a result of E. globules’ high water use efficiency. Besides low soil moisture, E. globules can intercept more Cd-rich leachate than chickpea regardless of the presence of EDTA. E. globules could be used for Cd phytoremediation as they can take full advantage of EDTA and decrease ecological risk caused by the chelator.

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Acknowledgments

We gratefully acknowledge the financial support from Department of Finance of Guangdong Province. Thanks are also given to our colleagues for their supplies and assistance.

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Authors and Affiliations

  1. China University of Geosciences, Wuhan, 430074, China

    Jie Luo & Shihua Qi

  2. The University of Melbourne, Parkville, VIC, 3010, Australia

    X. W. Sophie Gu

  3. Guangdong Hydrogeology Battalion, Guangzhou, 510510, China

    Jie Luo, Tao Hou & Lihong Lin

Authors
  1. Jie Luo
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  2. Shihua Qi
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  3. X. W. Sophie Gu
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  4. Tao Hou
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  5. Lihong Lin
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Correspondence to Jie Luo.

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Luo, J., Qi, S., Gu, X.W.S. et al. Ecological Risk Assessment of EDTA-Assisted Phytoremediation of Cd Under Different Cultivation Systems. Bull Environ Contam Toxicol 96, 259–264 (2016). https://doi.org/10.1007/s00128-015-1678-2

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  • DOI: https://doi.org/10.1007/s00128-015-1678-2

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