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Investigating of the Phytoremediation of Lead and Cadmium by Indian Mustard Plant (Brassica juncea)
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Samaneh Ahadi   , Marayam Rafati * , Forough Farsad |
| Assistant Professor, Department of Environment, Faculty of Marine Science and Technology, Islamic Azad University, North Tehran Branch, Tehran, Iran. |
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Abstract: (1234 Views) |
Lead and cadmium are among the most important heavy metals which have entered the life cycle of the earth as a result of human activities. In this study, in order to evaluate the ability of Indian mustard to uptake heavy metals (cadmium and lead), a survey was performed as randomized complete block design in which each metal was added to the plant in four concentrations zero (a control), 50, 100 and 200 mg/kg soil. The results showed that the highest concentration of lead in the root and shoot (aerial parts) of Indian mustard was 278.4 and 61.8 mg/kg, respectively, in the 200 mg/kg treatment, while the highest amount of cadmium in these two organs was 14.5, and 10.9 mg/kg respectively in the treatment of 100 mg/kg soil. Also, with the increase of lead concentration in the soil, the amount of this element in Indian mustard increased linearly with a high correlation coefficient, and the bio-concentration coefficient of lead in the plant roots was greater than one in all studied treatments. Finally, it was found that Indian mustard can be used as a bio-indicator of lead and stabilized it in its root, but it is not able to stabilize or extract significant amounts of cadmium from soil. |
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| Keywords: Andicator, Bioconcentartion, Heavy metals, Indian mustard, Phytoremediation. |
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Full-Text [PDF 1494 kb]
(395 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2022/09/20 | Accepted: 2022/12/18
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