Dr. Maryum Yousaf, Dr. Zareen Arshad, Dr. Atia Batool
Objective: Employees extracted dust, gas gases, petroleum vapors etc. If safe work practices are insufficient, this may lead to negative respiratory health and deterioration of lung function in employees. The purpose of this study is to assess the condition of the respiratory system and lung function in employees of the coal industries. Place and Duration: In the Pulmonology department of Bahawal Victoria Hospital Bahawalpur for one year duration from March 2019 to March 2020. Methods: This study is a cross-sectional study conducted to monitor respiratory health and lung function among employees of the coal industries. A total of 87 tunnel employees were recruited for this study, which was exposed to dust excavated during work practices at the construction site. These workers were compared with 53 controls with the same socioeconomic status and were not professionally exposed to dust. Respiratory symptoms were reported using a questionnaire. Spirometry was performed for FEV1 (forced expiratory volume for 1 second) and FVC (mandatory vital capacity) tests of exposed and controlled subjects. Results: Most of the symptoms reported by tunnel workers are shortness of breath (25.28%) and sputum causing cough (25.28%). Both parameters of lung function, viz. It was found that FEV1 and FVC were significantly reduced among tunnel workers (p <0.01) compared to controls. There was a significant negative correlation between dust exposure time and FEV1 and FEV1 / FVC (p <0.01). Conclusion: As a result, we found poor respiratory health and reduced lung function, which are associated with tunnel workers exposure time. Key words: respiratory system health, lung functions.