Table 2 show concentration of air pollutant at each sampling site averaged for sampling periods. The total suspended particulate (TSP) at Site 1, and total dust at working area (Site 2 and 3) and worker’s breathing zone (personal sampling position) were lower than the EPA standard (0.33 mg/m3 for TSP, EPA 2003) and the occupational exposure limit (10 mg/m3 for total dust, ACGIH 2003).