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성은창 ( Eun Chang Sung ),배혜정 ( Hye Jeong Bae ),정종현 ( Jong Hyoen Jung ),피영규 ( Young Gyu Phee ) 한국산업보건학회 (구 한국산업위생학회) 2015 한국산업보건학회지 Vol.25 No.4
Objectives: The purpose of this study was to evaluate quartz concentrations in airborne total and respirable dusts. Materials: Respirable dust samples were collected using a 10 mm aluminum cyclone equipped with a 37 mm5 ㎛ pore size PVC filter. Total dust samples were collected with a three stage cassette from three work sections at earthwork sites located in the South Chungcheong-do Province area. Results: The geometric means of quartz concentrations were 0.008 ㎎/㎥ and 0.004 ㎎/㎥ in total dust and respirable dust, respectively. The geometric means of quartz contents analyzed by FTIR were 3.74% in total dust and 3.16% in respirable dust. The geometric mean of quartz concentrations and contents in secondary blasting operations were higher than those in other operations. Conclusions: Given that secondary blasting operations had higher quartz concentrations, there is a need to reduce respirable dust, such as through wet operations.