Phytoremediation potential of wild plants collected from heavy metals contaminated soils

Reda Abou-Shanab, Amel Tammam, Weam El-Aggan, Mahmoud Mubarak
unpublished
A field survey of wild plants growing nearby the metal industrial factories was conducted to determine the existence of native plant flora which might be useful in phytoremediation. A total of 24 plants belonging to 7 families were collected from 10 different sites. Soil and plant samples were analyzed for Cr, Cu, Ni, Pb, and Zn. Each soil exhibited a high concentration of one or more metals. Maximum Pb (328 mg kg-1) and Cu (97 mg kg-1) contents were observed in Glebionis coronaria, while the
more » ... ximum Zn (180 mg kg-1) and Ni (74 mg kg-1) were obtained by Amaranthus sp. Anagallis bavaria, Amaranthus sp., Chenopodium ambrosioides, Malva parviflora, and Lactuca serriola were collected from site 05, 03, 03, 02, and 08 had highest TF values for Pb (7.9), Cu (6.3), Zn (8.3), Ni (8), and Cr (2.5), respectively. While, C. bonariensis, L. serriola, G. coronaria, C. ambrosioides, and C. bonariensis) collected from site 04, 10, 01, 03, and 09 had the highest BF values for Pb (6.2), Cu (3.2), Zn (7.8), Ni (2.2), and Cr (2.6), respectively. Therefore, these wild plant species may have the potential for bioremediation and can be used for phytoremediation of heavy metals contaminated soil.
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