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KMID : 0381219720040070460
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Journal of RIMSK
1972 Volume.4 No. 7 p.460 ~ p.477
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A SURVEY ON THE ORGANIC SOLVENT POISONING AND OCCUPATIONAL HEARING LOSS
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Abstract
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This survey was conducted on seventy-five industrial establishments of various sizes in Yongdung.Po area over a period of four months from August 1 to November 30, 1970. We placed emphasis on their working environments and prevalence of organic solvent poisoning and occupational hearing loss. The results were as follows:
I . Organic solvent poisoning.
1. Prevalence of organic solvent poisoning (including suspects) was 48. 1%, being 49. 696 for male and 46.8% for female workers. The rate was higher in rubber product industry, printing industry, transport equipment and chemical industry. By the scale of industry, the rate was the highest in undertakings employing less than 100 workers.
2. The prevalence rate of benzene poisoning increased in positive association with the length employed.
3. The prevalence rate of benzene poisoning was 54. 5% for female workers and showed sharp increase with age. The rate for young (male and female) workers of less than 18 years was 44.5% and 48. 0% respectively.
4. For workers exposed to benzene, the atmospheric concentration and blood specific gravity, as well as the length of services and red blood cell count, showed statistically significant association. II. Occupational hearing loss.
1. The prevalence of occupational hearing loss (including suspects) was 36. 636, being 30.7% for male and 42. 5% for female workers. The rate was higher in metal products industry, and leather products plants. Also it was high in textile industry for female workers. By the scale of industry, the rate decreased in the sequence of 100-299 employees. 300-999 employees, less than 100 employees and more than 1, 000 employees group.
2. The prevalence rate showed increase together with the length of services, especially in female workers.
3. Female workers are exposed to higher level of noise in general and the prevalence rate showed rapid increase with the advance of age.
11. Non-occupational diseases.
1. The prevalence rate was 26. 0%, being 28. 4% for´ male and 18. 6% for female workers. By groups of disease, hypertension, hearing loss and eye diseases were most prevalent..
2. The prevalence of pulmonary tuberculosis was 3. 58% and a remarkable decrease in recent years was noted.
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