+ Site Statistics
+ Resolve Accession
+ 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
Submit PDF Full TextSubmit 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

, : 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

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)

Order PDF Full Text


Click here to order any other PDF Full Text

Accession: 005375638

PDF Full Text: Submit

Submit PDF Full Text

No spam - Every submission is manually reviewed

Due to poor quality, we do not accept files from Researchgate

Submitted PDF Full Texts will always be free for everyone
(We only charge for PDFs that we need to acquire)

Select a PDF file:

Other references

Zhu, Zhiyi; Ramos, Jason; Kampa, Kerstin; Adimoolam, Shanthi; Sirisawad, Mint; Yu, Zhiyong; Chen, Dexi; Naumovski, Louie; Lopez, Charles, D., 2005: Control of ASPP2. The p53 pathway is a central mediator of the apoptotic response. ASPP2/[superscript 53BP2L] (apoptosis-stimulating protein of p53 2, also known as 53BP2L) enhances apoptosis through selective stimulation of p53 transactivation of proapoptotic targ...

Anonymous, 2013: Investigating lasp-2 in cell adhesion new binding partners and roles in motility. Focal adhesions are intricate protein complexes that facilitate cell attachment, migration, and cellular communication. Lasp-2 (LIM-nebulette), a member of the nebulin family of actin-binding proteins, is a newly identified component of these comp...

Bisen, S. S.; Mishra, G. P.; Sharma, S. C., 1988: Scanning electron microscopic studies on culm and leaf epidermis of Indian bamboos. Detailed observations are presented from an SEM study of samples from 37 species (from 22 genera) collected between 1983 and 1985 from various locations in India. The culm and leaf samples were collected from the eighth internode of at least 5 sta...

Timberlake G.A.; Mcswain N.E.Jr, 1988: Autotransfusion of blood contaminated by enteric contents a potentially life saving measure in the massively hemorrhaging trauma patient. The role of autotransfusion of shed blood is well established in thoracic, abdominal, vascular, and orthopedic elective surgery. When hollow viscera or infected organs are uninvolved, autotransfusion is also well accepted in trauma surgery. Less c...

Papalini, P.; Cinquanta, A.; Ercolani, R., 1997: Etrusco and Moro di Corneto, two new globe artichoke cultivars. The new globe artichoke (Cynara scolymus) cultivar Etrusco was derived from a cross between Terom and a hybrid between 2 ecotypes, one from Israel and the other derived from the cultivar Castellammare. Production in Tarquinia begins at the beginni...

Podar, C.; Oroian, I.; Cornaciu, M.; Berindeie, D.; Boaru, I.; Popovici, V.; Varodi, L., 2001: The proteins-vitamins and minerals nucleus - a revolution in the animals' feeding. This study was conducted to evaluate the effects of feeding cattle with proteins-vitamins-minerals nucleus (PVM nucleus, RAIFFEISEN) concentrate. A total of 841 cattle were used in this study. 377 cows and heifers were included in farm B, whereas...

Pukkala, Eero; Tulenheimo Silfvast, Annika; Leminen, Arto, 2001: Incidence of cancer among women using long versus monthly cycle hormonal replacement therapy, Finland 1994-1997. Objective: This study was initiated as a consequence of a clinical observation in one hospital of several endometrial carcinomas among users of a fixed combination of a 3-month cycle oral hormonal replacement therapy (HRT), which has been marketed...

Baxter, R. W., 1978: Sphenopteris sellardsii new species a problematical pteridosperm from the permian of kansas usa. S. sellardsii, a new species of pteridosperm based on fertile foliage from the Elmo Limestone Member of Early Permian age in east-central Kansas (USA), is preserved as deep molds in limestone matrix. It is characterized by thick, fleshy pinnules a...

Tilley, R. J. D., 1998: The Speckled Wood butterfly, Pararge aegeria , as a host of Pales pavida in South Wales. Entomologist's Gazette 49(1): 17-20, Jan 30

Melendez L.V., 1975: Induction of herpesvirus saimiri lymphoma in new zealand white rabbits inoculated intra venously. De The, G. Epstein And H. Zur Hausen (ed.). Iarc (international Agency For Research On Cancer) Scientific Publications, No. 11. Oncogenesis And Herpesviruses Ii, Part 2. Epidemiology, Host Response And Control. Proceedings Of A Symposium. Nuremberg, West Germany, Oct. 14-16, . Xiii 403p. Illus. International Agency For Research On Cancer: Lyon, France (dist. By Who, Geneva, Switzerland). 205-208