AI Article Synopsis
- The study investigates the impact of cadmium (Cd) and polychlorinated biphenyls (PCBs) on the growth of the Tagetes patula L. plant, revealing that a minimum concentration of PCBs can enhance plant biomass by nearly 28%.
- In tests, Cd levels in plant tissues exceeded 100 mg/kg, showing a significant positive relationship between Cd and PCB accumulation in both soil and plants.
- T. patula demonstrated a high tolerance to both pollutants and effectively removed up to 42% of specific PCBs, underscoring its potential for use in cleaning contaminated soils.
Article 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) 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. 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.
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| http://dx.doi.org/10.1007/s00128-021-03392-4 | DOI Listing |
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