EVALUATION OF HEAVY METALS IN SOIL AND IRRIGATION WATER WITHIN KATSINA METROPOLIS
Abstract
Human exposure to heavy metal toxicity has been linked to the consumption of vegetables grown Son polluted soils, Increase in environmental pollution caused by heavy metals released from anthropogenic activities due to ongoing rapid economic boost of industrialization and urbanization is becoming a global environmental problem due to their toxic and non-biodegradable nature. In this study, determination of heavy metals was conducted in soil and irrigation water sample obtained from irrigation site in Katsina metropolis, Katsina State, Nigeria. The sample was prepared in the laboratory using aqua regia acid digestion. Afterward, heavy metals (Mn andCd ) were determined using Atomic Absorption Spectrophotometer (AAS) and the results obtained revealed that the soil and the irrigation water from the area was heavily contaminated with Manganese and Cadmium and in comparison to the World Health Organization (WHO) and Nigerian Federal Environmental Protection. Agency (FEPA) permissible limits. The contamination of the soil by Mn and Cd could be associated with the anthropogenic activities being carried out around the farmland and the sewage water used in irrigation.
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