Histological Effects of Sputum Smear Among Quarry Workers Exposed to Quarry Dust in Ebonyi State

Occupational exposure to quarry dust is a significant health concern for quarry workers, particularly in developing regions. Quarry dust contains silica and other particulate matter that can be inhaled, leading to respiratory issues and potential long-term lung damage. The histological effects of such exposure, especially as determined through sputum smear analysis, are critical for understanding the impact on respiratory health. This study focuses on quarry workers in Ebonyi State, Nigeria, a region with a high prevalence of quarrying activities. A cross-sectional study design was employed, involving 50 quarry workers from various sites in Ebonyi State. Participants were selected through random sampling. Sputum samples were collected from each participant and subjected to smear microscopy. The sputum smears were stained using the PAP staining technique and examined for histological abnormalities, including the presence of inflammatory cells, epithelial changes, and other indicators of respiratory distress. Data on workers' exposure duration, use of protective equipment, and smoking status were also collected through structured interviews. Significant histological abnormalities were found in all groups by the sputum smear examination, including granular debris, spindle-shaped cells with irregular boundaries, and cohesive clusters of elongated cells. The findings indicate that all groups had significant histological abnormalities, with granular debris consistently present across samples. Workers with longer exposure and inadequate protective measures exhibited more severe cellular changes. The study demonstrates significant histological changes in the respiratory system of quarry workers due to quarry dust exposure in Ebonyi State. The consistent presence of granular debris and irregular cellular structures across samples highlights the adverse impact of dust inhalation. In order to safeguard quarry workers from respiratory illnesses, these findings highlight the critical need for improved occupational health rules, adequate protective gear, and routine health checks.