Phytoremediation for Co-contaminated Soils of Cadmium and Polychlorinated Biphenyls Using the Ornamental Plant Tagetes patula L.

Xinyu Miao, Ramasamy Rajesh Kumar, Qiqi Shen, Zijiang Wang, Qingzi Zhao, Joginder Singh, Sayan Paul, Wei Wang, Xiaona Shang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In this study, pot-culture experiments were conducted to investigate the single effect of Cd, PCBs, and the combined effect of Cd-PCBs with Tagetes patula L. The study highlights that the minimum concentration of PCBs (100 µg kg−1) could enable the growth of the plant with an increase in biomass by 27.76% when compared with the control. In all the experiments performed, the Cd concentrations over the surface parts were found to be above 100 mg kg−1. Significant positive correlations were observed between the Cd and PCBs concentrations accumulated in tissues of the soil and plants (p < 0.05). T. patula exhibited high tolerance to Cd and PCBs, and the plant promoted the removal rate of PCBs. The removal rates of PCB18 and PCB28 were up to 42.72 and 42.29%, respectively. The study highlights the potential and suitability of T. patula for phytoremediation of Cd and PCBs in contaminated soils.

Original languageEnglish (US)
Pages (from-to)129-135
Number of pages7
JournalBulletin of Environmental Contamination and Toxicology
Volume108
Issue number1
DOIs
StatePublished - Jan 2022
Externally publishedYes

Keywords

  • Cd and PCBs
  • Contaminated soils
  • Phytoremediation
  • Pot-culture
  • T. patula

ASJC Scopus subject areas

  • Toxicology
  • Pollution
  • Health, Toxicology and Mutagenesis

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