Publisher: Chemical Society of Nigeria

The Use of Chemical Fractionation To Predict Heavy Metal Accumulation In Plant Maize (ZEA MAYS) Grown On Chromated Copper Arsenate (CCA) Contaminated Soil.

S. O. P. Urunmatsoma, E. U. Ikhuoria, F. E. Okieimen, H. S. Ukulu
KEYWORDS: CCA contaminated soil, copper, maize (Zea mays)

ABSTRACT:

Sequential  chemical  speciation  (six  steps)  procedure  was  used  to  predict  the  uptake  of  Cr,  Cu  and  As  by maize  (Zea-mays)  plant  in  chromated  copper  arsenate  (CCA)  contaminated  soil.  A  pot  experiment containing  contaminated  soil  samples  was  set  up.  The  initial  concentration  of  Cr,  Cu  and  As  in  the contaminated  soil  sample  were  established.  The  six  fractions  based  on  sequential  extractions  were  also established.    The  distribution  patterns  of  the  metals  based  on  their  mobility  factor  Mf  showed  values  high enough  to  predict  high  lability  and  bioavailability  for  arsenic,  moderate  for  chromium  and  low  for copper.  


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