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http://dx.doi.org/10.15269/JKSOEH.2017.27.3.163

Comparisons of Airborne Quartz Concentrationsin Mineral Dust Exposure Industries  

Jeong, Gyeong Seon (Institute for Industrial Health, Daegu Haany University)
Bae, Hye Jeong (Institute for Industrial Health, Daegu Haany University)
Nam, Mi Ran (Institute for Industrial Health, Daegu Haany University)
Jung, Jong-Hyoen (Faculty of Health Science, Daegu Haany University)
Phee, Young Gyu (Faculty of Health Science, Daegu Haany University)
Publication Information
Journal of Korean Society of Occupational and Environmental Hygiene / v.27, no.3, 2017 , pp. 163-169 More about this Journal
Abstract
Objectives: This study was conducted toestimate quartz concentrations and contents in the airborne respirable dust from various industries. Methods: A total of 818 samples were collected from 174 industries. Respirable dust samples were collected using a cyclone equipped with a 37 mm, $5{\mu}m$ pore size PVC filter. The quartz concentrations were identified using the intensity of the absorption peak of quartz at $799cm^{-1}$ by Fourie Transformed Infrared Spectroscopy(FTIR). Results: The respective geometric means for quartz concentrations in the respirable dust were 0.0050, 0.0049, 0.0025, and $0.0019mg/m^3$ in foundries, ceramics, construction, and cement/stone. The geometric mean of quartz contents analyzed by FTIR were respectively 3.43, 1.99, 1.04, and 0.82% for ceramics, foundries, cement/stone, and construction. The rate of exceeding the Korean Occupational Exposure Limit($0.05mg/m^3$) was 2.03%, but rate of exceeding the American Conference of Governmental Industrial Hygienist(ACGIH) Threshold Limit Value($0.025mg/m^3$) was 7.12%. Conclusions: Given that foundries had a higher quartz concentration, there is a need to reduce respirable dust, such as through wet operation. In order to protect the health of workers exposed to mineral dust, it is necessary to actively consider strengthening the Korean Occupational Exposure Limit.
Keywords
concentration; quartz; respirable dust;
Citations & Related Records
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