Assessment of Heavy Metals in Irrigated Farm Land in Kaduna Metropolis, Kaduna State, Nigeria

Abstract

Heavy metals are chemical substances mainly present in water and soil. They exists as natural and or synthetic element in water, soil and industry. This element often find their way into human through inhalation, contact and ingestion. The exposure to man could be through eating polluted grass/food, air and or water. This study assess the level of Pb, Cr, Ni, and Cd on irrigated farm lands obtained from Bashama Road, Tudun Wada situated within Kaduna Metropolis. 1g of sampled soilwas subjected to laboratory analyses. The samples were analyzed using ALPHA 4 atomic absorption spectrophotometer (Chem-Techn. Analytical). The findings revealed the range of Pb (67 – 425 μg/g), Cd (1.9 –7.4 μg/g), and Cr (43.9 – 64.7 μg/g). The soil in Tudun Wada irrigated farm land was highly concentrated with heavy metals when compared with World Health Organization (WHO).