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Exposure Assessment of Airborne Quartz from Earthwork Sites
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 Title & Authors
Exposure Assessment of Airborne Quartz from Earthwork Sites
Sung, Eun Chang; Bae, Hye Jeong; Jung, Jong-Hyoen; Phee, Young Gyu;
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 Abstract
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 mm 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 and 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.
 Keywords
concentration;earthwork;quartz;
 Language
Korean
 Cited by
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