8 Gidan Kwanu Primary and Secondary School, Minna Niger state. Corresponding author Heavy metal has been widely reported to record variable health effect. Among the major contributors of heavy metals to the environment is technological advancement, and if not properly checked their presence to outbreak of disease, short life span, cancer and other related effects (Isa Khan et al. 2008). Effort have been made by researchers across the globe in studying heavy metals and their sources. In 2006, Trang lead his team to study dust in the metropolitan city of reported variable concentrations in Cd, Cu and Pb, in the sequence Cd>Ni>Zn=Pb>Cu using Atomic Absorption Spectroscopy (AAS) The transmission of this heavy metals and their health effect were studied in Beijing, considering the irrigation system (long waste water). The results was WHO, and SEPA. The finding shows relative ABSTRACT In the toxicological aspect, uncontrolled amount of heavy metals is deadly, to the environment and its inhabitants. To complicate issues, reviewed work has revealed that technological advancement is one of the key sources of heavy metals. This can lead to outbreak of diseases, decrease of life span, cancer, and other related effects. Providing sustainable environment, the concentration of these metals need to be periodically regulated. This research studies the effect of some selected heavy metals (Fe, Cd, Cr, Pb, Zn and Mn) in Kano State Nigeria, using Atomic Absorption spectroscopy (AAS). The results were compared with other related work conducted in some states across Nigeria (Akwa Ibom, Kwara, Kaduna, and Bauchi States) and standard international FAO, SEPA and US EPA). The parameters analysed were; Concentration, Bioaccumulation (Plant concentration factor -PCF), Transfer factor (TF), Daily Intake of Metals (DIM), and Health Risk Index (HRI). Statistical package (SPSS) was used, to esbetween these metals in all the sites. The result showed that there were substantial absorption of these metals by the plants and the consumers. Children were more exposed than adults in terms of DIM and the HRI. The comparison sho parameters investigated. All the biological samples the TF>1, this will aid in having sustainable environment to the resident and citizen of the state in particular and the nation in gener initiation of safe comprehensive remedy of the subject matter. varied across states and plants.
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