Phytoextraction of Lead and Chromium by Leafy Vegetables (Lettuce, Kale and Swiss Chard)

Authors

  • Mamu H. Teferi Department of Chemistry, College of Natural Science, Jimma University, P.O Box 387, Jimma, Ethiopia
  • Dejene A. Tessema Department of Chemistry, College of Natural Science, Jimma University, P.O Box 387, Jimma, Ethiopia

DOI:

https://doi.org/10.37591/jocc.v3i3.2274

Abstract

This research was carried out to assess the accumulation of Cr and Pb in leafy vegetables (lettuce, kale and Swiss chard) in their harvestable part and root from artificially polluted soil with Pb and Cr. Soil sample was characterized for its pH, organic matter (OM), cation exchange capacity (CEC), electrical conductivity (EC) and texture. Soil sample digested by mixture of HNO3 and HClO4 was analyzed. Pb accumulation in shoot was on average greater (318.36 to 1235.20 mg/kg) in S2 than S1 (169.66 to 404.80 mg/kg). Translocation of Pb from root to shoot was enhanced by the addition of spinach extract in kale and Swiss chard. Chromium translocation from root to shoot in the vegetables was limited. Less than one TF of Cr was recorded in all plants of both soil samples. Cr except lettuce grown in PES2, all the plants were able to accumulate less than 1000 mg kg-1 in their shoot.

 

Keyword: Lead, Chromium, Photoextract

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Published

2019-04-15

Issue

Vol. 3 No. 3 (2016)

Section

Articles

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