+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Epidemiological study on dust conditions of rock places and prevalence of pneumoconiosis among tunnel drillers in a korean coal mine area

Journal of Catholic Medical College 38(4): 975-986

Epidemiological study on dust conditions of rock places and prevalence of pneumoconiosis among tunnel drillers in a korean coal mine area

In order to assess the dust conditions in rock places and the prevalence of pneumoconiosis among tunnel drillers, 52 collieries and 3,540 dust workers were subjected to this study. Of total 3,540 dust workers, 2,194 can be categorized as simple tunnel drillers who have been working only as tunnel drillers and the remaining 1,346 as combined tunnel drillers. Combined tunnel drillers are those who had dust working job experience other than tunnel drilling and those who are now working in other dust work places but have ever engazed in tunnel drilling in the past. The occupational history of undergound work was taken individually by interview and the chest radiograph was checked in the field with a 500 mm amp, x-ray instrument installed in a mobile car from June to July 1984. The radiographs were doubly read by the two chest disease specialist and their findings were classified by International Classification of Radiographs of Pneumoconiosis (ILO-U/C, 1971). Dust was collected by personal sampler, and the amount of respirable dust and the concentration of free silica were measured by piezoelectric balance and x-ray diffraction methods. The results were as follows: The concentration of free silica in total dust of the rock places was less than 30%, and thus the dust can be classified as second degree dust. Total and respirable dust levels were higher in small scale collieries(less than 99 workers) than large ones (more than 1,000 workers). The difference of dust level between these two different scale collieries was even statistically significant. There was an increasing tendency in prevalence of pneumoconiosis as the duration of undergound work is longer. The average prevalence of pneumoconiosis in all tunnel drillers studied was 17.2%. A marked difference in prevalence was found between simple tunnel drillers and combined tunnel drillers: 12.9% in simple tunnel drillers and 24.3% in combined tunnel drillers. Prevalence of pneumoconiosis was higher in old aged workers than in the young and in the workers of small scale collieries.

(PDF 0-2 workdays service: $29.90)

Accession: 005375638

Related references

Coal mine workers' pneumoconiosis (CWP): in vitro study of the release of organic compounds from coal mine dust in the presence of physiological fluids. Environmental Research 74(1): 74-83, 1997

Report of geophysical survey for uranium deposits over Chubu Tunnel area, Samgoe coal mine area and Soryong coal mine area. Report on Geoscience and Mineral Resources - Korea Research Institute of Geoscience and Mineral Resources 1: 127-167, 1977

Research for national coal mine and local coal mine pneumoconiosis morbidity in certain area. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 27(4): 226-227, 2012

Hydroxyl radical generation by coal mine dust: Possible implication to coal workers' pneumoconiosis (CWP). Free Radical Biology and Medicine 18(1): 11-20, 1995

Effect of dust exposures on development of pneumoconiosis in coal mine tunnelers in the donets coal mines ussr. Gigiena Truda i Professional'nye Zabolevaniya (2): 10-12, 1986

Infective pneumoconiosis. I. The influence of dead tubercle bacilli (BCG) on the dust lesions produced by anthracite, coal-mine dust, and kaolin in the lungs of rats and guinea-pigs. British Journal of Industrial Medicine 11(4): 245-259, 1954

Effect Of Dust Suppression Measures On The Prevalence Of Coal-Workers' Pneumoconiosis In The Dutch Coal-Mines. British Journal of Industrial Medicine 20: 288-292, 1963

New data on the relationship between simple pneumoconiosis and exposure to coal mine dust. Chest 78(2 Suppl): 408-410, 1980

Relationship between the mass and composition of coal mine dust and the development of pneumoconiosis. Rom, W N And V E Archer (Ed ) Health Implications Of New Energy Technologies Xxi+785p Ann Arbor Science Publishers, Inc : Ann Arbor, Mich , Usa Illus P283-292, 1980

Generation of free oxygen radicals from human polymorphonuclear granulocytes by cytokines from human mononuclear cells treated with quartz dust dq12 or coal mine dust tf 1 new aspects in pathogenesis of pneumoconiosis. Zentralblatt fuer Bakteriologie Mikrobiologie und Hygiene Serie B Umwelthygiene Krankenhaushygiene Arbeitshygiene Praeventive Medizin 187(2): 142-165, 1988