Potential of Rosmarinus officinalis for Phytoremediation of Soil Contaminated with Cadmium

Abstract

Abstract: In this study, the use of Rosmarinus officinalis was investigated to clear soil contaminated with Cd. The soil sample for pot experiment is taken from the old municipal waste storage in Mardin. The pot experiment conducted in the greenhouse. Increasing dose of Cd (0-5-10-20 mg kg-1 as 3CdSO4.7H2O form) and 0.005 mM citric acid applied to the soil and all pots were incubated for 30 days. The fertilizer (200 mg N kg-1 ) applied before seedling and then plant seedlings transferred to the pots. The plants were grown for 45 days in the greenhouse. After harvest Cd, N, P, K, Mn, Fe, Cu, and Zn concentrations of plant samples were determined in ICP-MS. The highest Cd content (8.31 µg plant-1 ) was obtained in 20 mg Cd kg-1 treatments. The result of the experiment was shown that the Rosmarinus officinalis was not suitable for pyhtoextraction of Cd-contaminated soils.