Asbestos and non-asbestos fiber content in lungs of Korean subjects with no known occupational asbestos exposure history
- Authors
- Yu, II J.; Moon, Y.H.; Sakai, K.; Hisanaga, N.; Park, Jung Duck; Takeuchi, Y.
- Issue Date
- Apr-1998
- Publisher
- Elsevier Sci Ltd, Exeter
- Citation
- Environment International, v.24, no.3, pp 293 - 300
- Pages
- 8
- Journal Title
- Environment International
- Volume
- 24
- Number
- 3
- Start Page
- 293
- End Page
- 300
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/66611
- DOI
- 10.1016/S0160-4120(98)00008-7
- ISSN
- 0160-4120
1873-6750
- Abstract
- To provide an estimation of asbestos exposure among normal Koreans and a criterion for determining occupational asbestos exposed diseases, pulmonary fiber contents of both asbestos and non-asbestos types were evaluated in 20 Korean subjects with no known occupational history of asbestos exposure. Pulmonary fiber contents were analyzed by transmission electron microscopy with energy dispersive X-ray analysis after using the low temperature ashing procedure. Chrysotile fiber (65.5%) was the major fiber type found in the lungs of Korean subjects. Asbestos fiber concentrations found in males and females were 0.30 x 106 fibers/g of dry lungs and 0.15 x 106 fibers/g of dry lungs, respectively, showing a geometric mean concentration of 0.26 x 106 fibers/g of dry lung tissue. Non-asbestos fiber contents found in males and females were 8.02 x 106 fibers/g of dry lungs and 7.85 x l06 fibers/g of dry lungs, respectively, with a geometric mean concentration of 7.98 x 106 fibers/g of dry lungs. There was no difference in asbestos content in lungs among various age groups. Comparing these results with Japanese male (2.11 x 106 fibers/g of dry lung) and female subjects (1.38 x 106 fibers/g of dry lung), Korean male and female subjects had much less asbestos in their lungs.To provide an estimation of asbestos exposure among normal Koreans and a criterion for determining occupational asbestos exposed diseases, pulmonary fiber contents of both asbestos and non-asbestos types were evaluated in 20 Korean subjects with no known occupational history of asbestos exposure. Pulmonary fiber contents were analyzed by transmission electron microscopy with energy dispersive X-ray analysis after using the low temperature ashing procedure. Chrysotile fiber (65.5%) was the major fiber type found in the lungs of Korean subjects. Asbestos fiber concentrations found in males and females were 0.30×106 fibers/g of dry lungs and 0.15×106 fibers/g of dry lungs, respectively, showing a geometric mean concentration of 0.26×106 fibers/g of dry lung tissue. Non-asbestos fiber contents found in males and females were 8.02×106 fibers/g of dry lungs and 7.85×106 fibers/g of dry lungs, respectively, with a geometric mean concentration of 7.98×106 fibers/g of dry lungs. There was no difference in asbestos content in lungs among various age groups. Comparing these results with Japanese male (2.11×106 fibers/g of dry lung) and female subjects (1.38×106 fibers/g of dry lung), Korean male and female subjects had much less asbestos in their lungs.
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