There are significant relationship (p <0.05) level of knowledge with age, job titles and area of workplace. The result shows the level of knowledge were 96.75%, attitude 83.7% and practical 82.85% among the HCWs. The mean total concentration obtained were below the standard permissible exposure limit of 15 mg/m³ set by OSHA USA 2005. The result on total dust from the environmental air sampling (casting room) showed mean concentration are 3.402☐.003 mg/m³ and personal air sampling showed the mean concentration are 5.573± 0.040 mg/m³. A set of questionnaires was administered to evaluate the level of knowledge, attitude and practice related to the awareness of occupational safety and health among the 43 HCWs from public hospital in Kuala Lumpur, Malaysia. The determination of environmental air sampling was conducted in the casting room for six hours continuously. Determination of personnel dust exposure were established for selected six HCWs, who are highly risk of dust exposed based on their jobs scope in the casting room.
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The personnel and environmental air sampling were conducted for 6 hours followed the standard method from NIOSH Manual of Analytical Method 0501. The study was carried out to determine the total dust concentrations in the casting room were exposed to environmental and personnel. The emergence of dust generated from the process of removal orthopedic cast materials pose a significant potential hazardous to respiratory health among the healthcare workers (HCWs) in the orthopedic casting room.