Abstract
Background: Carbon block is possibly carcinogenic to humans. Short-term exposure to high concentrations of carbon black dust may produce discomfort to the upper respiratory tract, through mechanical irritation. Aims and Objective: This study aims to evaluate the impact of the carbon block on the peak expiratory flow rate (PEFR) using Wrights peak flow meter. Materials and Methods: Peak flow meter was done by Wrights peak flow meter. The paired t-test was done to determine the significant difference between the employees and controls. Results: Peak flow rate was decreased with the duration of the work exposure in the workers compared to controls. Conclusion: Impairement of Peak Expiratory Flow Rate in carbon rod making workers due to long term exposure of carbon dust.
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