<p>Airborne particulate matter generated during wheat threshing is a major environmental pollutant as well as occupational health risk to farm workers. Dust control system is dire need of hour to reduce particulate matter concentration. Current study was conducted to ascertain effectiveness of three developed dust control systems for wheat thresher to reduce airborne PMs during wheat threshing for two consecutive years. Concentrations of PM_1.0, PM_2.5, PM₁₀ and total suspended particulate (TSP) were recorded at four distances (20, 40, 60, and 80&#xa0;m) from wheat thresher’s straw outlet and three heights (0.91, 1.37, and 1.83&#xa0;m) from ground. Results revealed that System-I reduced concentration of PM_1.0, PM_2.5, PM₁₀ and TSP by 36.0, 64.3, 58.1 and 66.0% respectively during 2023. After improvements in developed systems during 2024, PMs reduction through system-I was recorded as 60.2, 71.1, 64.8 and 74.0% for PM_1.0, PM_2.5, PM₁₀ and TSP respectively. However, system-II and system-III were found relatively less effective compared to system-I. System-I outperformed other systems by achieving maximum percent reduction for all recorded PMs during both years. Remarkable reduction in PMs concentration was observed through use of dust control systems as distance from the wheat thresher’s straw outlet increased. Moreover, PMs concentration was found to increase with height having maximum mean values recorded at height of 1.83&#xa0;m leading to increased exposure risk at general public breathing zone. Current findings emphasized use of effective dust control system (system-I) to improve air quality and safeguard health of farm workers.</p>