HUBUNGAN DURASI PAPARAN DEBU dengan FORCED EXPIRATORY VOLUME IN ONE SECOND (FEV₁) pada SUKARELAWAN PENGATUR LALU LINTAS (SUPELTAS) di KECAMATAN LOWOKWARU KOTA MALANG

Dust exposure in urban work environments is one of the risk factors that can reduce lung function. Traffic Control Volunteers (SUPELTAS) in Lowokwaru District, Malang City, have a high potential for exposure due to long working hours in areas with significant traffic-related air pollution. Lung function can be assessed using spirometry, particularly the Forced Expiratory Volume in One Second (FEV₁), which is commonly used to detect obstructive and restrictive respiratory disorders. Objectives: To analyze the relationship between the duration of dust exposure and FEV₁ values among traffic control volunteers in Lowokwaru District, Malang City. Methods: This study employed a correlational analytic design with a cross-sectional approach. The study population consisted of all Supeltas in Lowokwaru District, with a total sampling technique resulting in 30 respondents. Data were collected using a structured questionnaire covering daily working duration, years of service, and daily cigarette consumption. Lung function was measured using spirometry, and data analysis was conducted using Spearman’s rho correlation test to determine the relationship between dust exposure duration and FEV₁ values. Results: The Spearman’s rho test yielded p = 0.687 (p > 0.05), indicating no significant relationship between dust exposure duration and FEV₁ values among traffic control volunteers in Lowokwaru District. Conclusion: The findings suggest that other factors beyond working duration, such as years of service, smoking habits, and environmental conditions, may contribute to variations in FEV₁ values. Further studies with additional variables and larger sample sizes are recommended to obtain a more comprehensive understanding of the factors influencing lung function in high-risk groups.