VARIATIONS IN MINERAL ELEMENT AND HEAVY METAL CONTENTS OF SOME VEGETABLES GROWN ON CRUDE OIL POST-REMEDIATED AGRICULTURAL SOIL

Reginald Chibueze Ohiri, Augustine Amadike Uwakwe, Eugene Nwaogwugwu Onyeike

Abstract


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.

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DOI: http://dx.doi.org/10.17628/ecb.2013.2.414-416

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