iajabmsIAJABMSIAJABMS2709-3298https://doi.org/10.47310/iajabms.2021.v02i02.008Heavy Metal Analysis in Indoor Dust Particles in Wukari, Taraba State, NigeriaOtitojuOlawaleThis study investigates the levels of heavy metals in dust associated with households in Wukari, Taraba State, Nigeria. The amount of some heavy metals in the dust samples selected from Puje ward, Hospital ward and Ayvi ward were analyzed with the use of Atomic Absorption Spectrophotometer (AAS). Heavy metals determined include Pb, As, Cr, Cd, and Hg. The level of lead was highest in sample station 7 (42.550±1.91 mg/kg) from Hospital ward and lowest in sample1 (22.450±0.49 mg/kg) from Puje ward. Statistical difference exists only between the concentration of lead in sample 1 and 7. There was no statistical difference between the level of lead in sample 1 and other samples and also between sample 7 and the other samples. The level of chromium was highest in sample 1 (2.250±0.13 mg/kg) from Puje ward and lowest in sample 7 (1.300±0.19 mg/kg) and 8 (1.300±0.25 mg/kg) from Hospital ward and Ayvi ward respectively. Cadmium was highest in sample 3 (0.890±0.09 mg/kg) from Puje ward and lowest in sample 4 (0.390±0.13 mg/kg) from Hospital ward. There was a statistical difference between sample station 3 and sample stations 1, 2, 4, 6, 7, 9 and 10. Arsenic and mercury was not detected in all the dust samples. The estimated potential carcinogenic risk to the public from inhalation of dust shows the THQ30 and THQ5 for Cd to be highest in Ayvi ward than in Hospital and Puje ward, while THQ30 and THQ5 for Cr was highest in Hospital ward. The THQ30 and THQ5 for Pb was highest in Puje ward than in Hospital and Ayvi ward. The result therefore shows that Hospital ward is more predisposed to Pb toxicity, while Puje ward is more predisposed to Cr and Cd toxicity.