Assessment of Heavy Metals in Soil around Dandora Dumping Site




Consumption of vegetables and drinking water contaminated with heavy metals has been identified as a risk to human health. The main sources of heavy metals contamination in food stuff are the soil and aerial depositions. The objective of this study was to investigate the spatial distribution of heavy metals in soil around Dandora dumping site and propose mitigation measures.


Ten soil samples were collected from five different points around the dumping site. The physical properties of the soil and chemical analysis of heavy metals were conducted following standard methods. Zinc and lead concentrations were determined using the Atomic Absorption Spectrometer.


Results showed variations in concentrations of the heavy metals from one site to the other signifying the influence of local activities. The levels of heavy metals were higher than the recommended values suggesting contamination is due to the dumping site and the industrial activities around the area. The concentration of zinc was higher than lead in most cases. The results revealed concentrations high enough to pose a threat to the health of the local inhabitants hence mitigation steps to curb heavy metal pollution in the area are required.


Key words: Heavy metals, dumping site, soil

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