Variations in mineral element and heavy metal contents of some edible herbs grown on crude oil post remediated agricultural soil was
carried out after four weeks of growth on the bioaugmented and natural attenuated soils. The result showed a slight decrease in all the
mineral elements analyzed. However, Potassium had the highest concentration 5.5020+0.1056 % and 4.7007+0.6510 % for Tallinium
triangulare and Amarantus hybridus planted on the bioaugmented site. Heavy metals concentration increased in all the vegetables after 4
weeks of growth with highest values of 0.0803+0.0006 %, 0.0813+0.0012 % and 0.8170+0.0015 % for Telfeiria occidentalis, Tallinium
triangulare, and Amarantus hybridus planted on the natural attenuated site respectively.
Key words: Bioaccumulation; mineral elements; heavy metals, vegetables; soil
|
