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Today, industrialization has been implicated in the generation of certain compounds which are potentiallyhazardous to human life. This is a cross sectional study designed to evaluate some heavy metal levelsin blood of lead acid battery manufacturing factory workers in Nnewi, Nigeria. A total of 39 apparentlyhealthy individuals in lead acid battery manufacturing factory aged between 19 and 56 years and 79 controlindividuals (comprising of 39 control individuals from Nnewi (N) and 40 control individuals from Elele (E)respectively) aged between 18 and 44 years were recruited for the study. Demographic data and body massindex (BMI) of participants were obtained using structured questionnaire and thereafter, 5ml of venousblood sample was collected from each individual for the evaluation of heavy metal levels (Pb, Ni, Cu,Zn, As and Se) using atomic absorption spectroscopy (AAS). Results showed that the factory workershad an average length of service (LOS) of 7.700.86 years and BMI which did not differ significantlywhen compared with the control groups (control N and E individuals) respectively (p>0.05). However,elevated levels of Ni, As and Pb and decreased levels of Cu, Zn and Se were observed in the blood of thefactory workers compared with control N and E individuals respectively (phas shown that these individuals may be prone to heavy metal toxicity and possible depletion on some vitalmicronutrients which may have grave health consequences for individuals dwelling in this area.Keywords: Industrialization, Lead acid battery manufacturing factory, Heavy metals, Body mass index (BMI), Age, Length of service (LOS).

Evaluation of some heavy metal levels in blood of lead acid battery manufacturing factory workers in Nnewi, Nigeria