International Journal of Innovation and Applied Studies
ISSN: 2028-9324     CODEN: IJIABO     OCLC Number: 828807274     ZDB-ID: 2703985-7
Wednesday 28 July 2021






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Heavy metals impacted soils from dumped municipal solid waste in Buterere - Burundi: Health risk assessment

Volume 30, Issue 2, August 2020, Pages 597–606

 Heavy metals impacted soils from dumped municipal solid waste in Buterere - Burundi: Health risk assessment

Norbert Manirakiza1, Théophile Ndikumana2, and C. Gisèle Jung3

1 Department of Natural Sciences, Higher Teacher School, Bujumbura, Burundi
2 Center for Research in Natural and Environment Sciences, Doctoral School, University of , Bujumbura, Burun, Burundi
3 Applied Sciences Faculty, 4MAT Service, Université Libre de Bruxelles, Brussels, Belgium

Original language: English

Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Municipal solid waste (MSW) landfills without any soil protection constitutes an environmental risk factor in particular heavy metal pollution. These sites, located close to inhabitants, can induce contamination through the food chain. The present work aims to be a contribution in measuring heavy metals concentrations generated by unsorted waste dumped from 1983 until 2008 on Buterere open air landfill in Bujumbura to assess soil contamination, pollution levels and health risk. Materials used are soil samples collected from 15 points at the Buterere site. The physicochemical characterization of the soil was carried out by thermogravimetry (TGA) and X-ray diffraction (X-RD). The determination of heavy metals was carried out by X-ray fluorescence (X-RF) and Inductively Coupled Plasma atomic Spectroscopy-Optical Emission (ICP-OES). Chronic carcinogenic and non-carcinogenic risk indices were evaluated based on experimental results in order to formulate adequate prospects for remediation. Results show that the heavy metals are not homogeneously dispersed on Buterere site but their concentration levels do generally exceed the limit values (World Health Organization, European Union). A significant correlation (p <0.05) was demonstrated for the simultaneous presence of the micropollutants of Cd, Cu, Fe and Zn in the study area. Based on these results, the health risk assessment reveals that the Buterere site can induce carcinogenic and non-carcinogenic nuisances to the population in its and therefore remedial measures are proposed.

Author Keywords: MSW, heavy metals, soil pollution, contamination, health risk.

How to Cite this Article

Norbert Manirakiza, Théophile Ndikumana, and C. Gisèle Jung, “Heavy metals impacted soils from dumped municipal solid waste in Buterere - Burundi: Health risk assessment,” International Journal of Innovation and Applied Studies, vol. 30, no. 2, pp. 597–606, August 2020.