Quartz Concentration and Respirable Dust of Coal Mines in Taeback and Kangneung Areas / 예방의학회지
Korean Journal of Preventive Medicine
;
: 261-269, 1987.
Artículo
en Coreano
| WPRIM
| ID: wpr-210058
ABSTRACT
In order to investigate working conditions of underground coal mines, this work was undertaken to evaluate the respirable dust and the concentration of quartz in Taeback and Kangneung areas. The concentration of quartz was determined by Fourier Transform Infrared Spectrophotometry. The results were as follows; 1) The concentration of respirable dust of drilling and coal face in Taeback and Kangneung areas were as followed. 2) Distribution of respirable dust was well fitted to the long-normal distribution and geometric mean value was log(-1) 0.37+/-log(-1) 0.47 (2.34+/-2.95) mg/m3. 3) The difference of respirable dust concentrations in Taeback and Kangneung areas was not significant statistically (p>0.05). 4) The concentration of quartz of drilling and coal face in Taeback and Kangneung areas were as followed. 5) Distribution of quartz concentrations was well fitted to the log-normal distribution and geometric mean value was log(-1) 0.33+/-log(-1) 0.45 (2.14+/-2.82)%. 6) The difference of quartz concentrations in Taeback and Kangneung areas was not significant (p>0.05), but significant at drilling sites and coal faces (p<0.05).
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Cuarzo
/
Espectrofotometría Infrarroja
/
Carbón Mineral
/
Polvo
/
Análisis de Fourier
Idioma:
Coreano
Revista:
Korean Journal of Preventive Medicine
Año:
1987
Tipo del documento:
Artículo
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