Objective : This study is a descriptive examination related to musculoskeletal disorders and the risk factors between pediatric and adult occupational therapists as a way to provide basic information for the purpose of preventing musculoskeletal disorders.Methods : This study surveyed 101 occupational therapists who are employed at ten general hospitals and social welfare centers in Seoul and Gyeonggi-do, South Korea. A questionnaire was used as the research tool for determining their socio-demographic characteristics, job satisfaction, workload, task frequency, and symptoms of musculoskeletal disorders. The data were analyzed using the SPSS Version 17.0.Results : The waist and back are the areas that pediatric and adult therapists complain about being the most painful. The next problem areas are the shoulders followed by the neck. When reviewing the occurrence of factors that influence musculoskeletal disorders according to the body area, the results show that these factors increased 4 to 15 times depending on the therapist's posture while treating patients, conducting their workload, and frequently doing tasks.Conclusion : The results show that the prevalence rate of musculoskeletal disorders of occupational therapists is significantly higher. To enhance the posture and physical task environment for therapists working in a diverse range of departments, further studies are needed.

The aim of this study was to compare the concentrations of airborne pollutants (i.e., PMs, TVOC, and ozone) released from a laser printer with a new and/or a refilled toner cartridge. Also we compared the concentrations before and after attaching a HEPA filter at the outlet of exhausted air for each printer. PMs, TVOC, and ozone were released from all three different branded printers with both toner cartridges in accordance with their both a brand new and a used condition. For PMs, there were generally significant differences of concentrations between a brand new and used toner (p<0.05). Ozone level differences were found between a new and a refilled toner, but were not significant (p>0.05). For TVOC, there were significant differences of concentrations among brands, and toluene (3.46mg/m³) only was identified. The overall 70% of reduction for PMs’concentrations occurred after attaching a HEPA filter(p<0.05), and these results were pronounced for TSP. These results showed that similar levels of airborne pollutants were released from a laser printer with a new and a refilled toner cartridge. Also, these results indicate that the usage of a HEPA filter may be an effective method for reducing the released pollutants from a laser printer.