Personal respirable dust samples were collected using pumps
(GilAir-3) connected to 10 mm nylon cyclones, as shown in
Fig. 2. Each set of sampling equipment was calibrated to a recommended
flow rate of 1.7 l/min using an airflow calibrator.
all the respirable samples during the study were taken
for approximately 180 min. Total 20 samples have been collected
with ten samples for each situation