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Impact of Coal Mine Dump Contaminated Soils on Elemental Uptake by Spinacia Oleracea (Spinach) 

Authors: Viren Chunilall a;  Andrew Kindness b; Sreekanth B. Jonnalagadda a
Affiliations:   a School of Chemistry, Westville Campus, University of KwaZulu-Natal, Durban, South Africa
b School of Chemistry, Howard College Campus, University of KwaZulu-Natal, Durban, South Africa
DOI: 10.1080/03601230500357447
Publication Frequency: 8 issues per year
Published in: journal Journal of Environmental Science and Health, Part B, Volume 41, Issue 3 May 2006 , pages 297 - 307
Formats available: HTML (English) : PDF (English)
Also incorporating: Environmental Letters
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Abstract

The elemental uptake and the growth response of Spinacia oleracea (spinach) to the soil contaminated with the South African bituminous coal mine dump soil, viz. 0%, 5%, 15%, and 25% w/w, was investigated. The contaminated soils were analyzed for pH, cation exchange capacity (CEC), soil organic matter (SOM), and concentrations of selected heavy metals. The pH, SOM, and CEC decreased with an increase in contamination indicating the acidic nature of coal mine soil and the raise in the soil binding sites. The distribution of Fe, Mn, Ni, Cd, and Pb in the in roots and leaves of the plants was determined in two stages of plant growth. Spinach showed high accumulation of Fe and increased levels of Ni and Cd with an increase in contamination. No plant growth was recorded with 25% contamination.
Keywords: Coal mine dumps; Soil pollution; Edible plants; Elemental uptake; Spinacia oleracea
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