عنوان مقاله [English]
Dust causes the hazardous effect on human health. In recent research, mass concentration, number of particles, and its distribution, as well as trend changes, is considered at the identified time interval in the UPVC factory. This cross sectional study was conducted in different sections of a UPVC plant.The maximum mean mass concentration of 0.7, 1, 2.5, 4, 10 µm, Total Suspended Particles (TSP), the number of particles with 0.5, 0.7, 1, 2.5, 4, 7 and 10 µm diameter were measured in mixing primary material hall, and the minimum was measured in extruder hall. Mean total concentration (µg/m3) and the number of particles (particles/m3) in three halls was measured in the range of 39313.93±27286.37 µg/m3 and 6295221±191025 particles/m3, respectively. The maximum number of particles with the diameter less than 7 µm and 7-10 µm were measured in mixing primary material and grinding halls. Due to the high mass concentration and number of particles, it is recommended to execute the dust controlling management in grinding hall.