RESUMO
This study was done to determine the health hazards among bus maintenance workers and to study the different environmental factors that cause these hazards. The sample included one hundered and fifty workers randomly selected from bus maintenance stations in Qaliubia and Menofia Governorates. The sample was classified according to the type of work into body repair workers, engine maintenance workers and painters. Fifty workers were randomly selected from administrative departments of the same companies as control group. Analysis of data revealed that the exposed workers have more eye and skin disorders, respiratory symptoms, pulmonary functions impairment locomotor disorders, blood lead, hearing loss and higher hearing threshold than the control group. On the other hand they have less cardiovascular manifestations, lower pulmonaryfunctions parameters and less ECG abnormalities than their control. Environmental measurments show higher dust and lead level higher Co, So2 and higher noise level than the general environment which explain the health hazards among the exposed workers. Proper preemployment and periodic medical examination, health education, continous enviromental measurements, and mechanisation of the hazarduous processes are recommended trials to decrease the pollution level