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N, N-dimethylformamide 취급근로자의 유해위험 정보 인식도 조사
양정선 ( Jeong Sun Yang ),임철홍 ( Cheol Hong Lim ),이혜진 ( Hae Jin Lee ) 한국산업위생학회 2011 한국산업보건학회지 Vol.21 No.2
Object: we investigated some factors which can affect workers` comprehension of chemical hazard information and their actions to protect themselves from the hazard. Method: Comprehension score of chemical hazard information and the rate of wearing personal protective equipment (PPE) was surveyed for the 109 workers from 15 factories who were exposed to N, N-dimethylformamide. Difference of the worker`s comprehension score of hazard information was analyzed by education interval, work duration and the way of occupational safety and health management between self-managed or sub-contracted. Result: Mean comprehension score of N, N-dimethylformamide hazard, which was given as a short quiz composed of 10 "true" or "false" problems, was 65%. Mean percentage of wearing PPE was improved as the education program was done within a month but decreased after 6 months. Eighty seven % of workers got the chemical hazard information from the material safety data sheet placed at workplace. Conclusion: Education interval and comprehension score affected the rate of wearing PPE. The way of occupational safety and health management self-managed or sub-contracted did not affect the workers` comprehension score on hazard information nor the rate of wearing PPE.
산업안전보건법 상 관리수준 검토를 위한 화학물질 유해성,위험성 평가대상 후보물질 선정에 관한 연구
양정선 ( Jeong Sun Yang ),임철홍 ( Cheol Hong Lim ),박상용 ( Sang Young Park ) 한국산업위생학회 2012 한국산업보건학회지 Vol.22 No.1
Object: The aim of this study is to suggest a list of priority chemicals for the Hazard & Risk Evaluation of Chemicals (HREC) controlled by the Industrial Safety and Health Act (ISHA). Method: Method: Screening assessment was done for 642 chemicals whose exposure threshold limit values were set by the Ministry of Employment and Labor (MOEL). Hazard data were collected from Korea Occupational Safety & Health Agency (KOSHA) and/or other toxicity database. Exposure data were obtained from KOSHA internal database. The hazard and exposure scores of chemicals were listed by order of priority in accordance with GHS classification and exposure index data. Result: From the result of screening risk assessment for 642 chemicals, we extracted a list of 13 priority chemicals for HREC performed by the ISHA. A priority list of 27 chemicals which have carcinogen, mutagen and/or reproductive toxicity but not controlled by the ISHA was suggested for additional evaluation as "chemicals for special management".
신발제조업 근로자의 톨루엔 노출정도에 따른 혈중 톨루엔 농도분석
양정선(Jeong Sun Yang),강성규(Seong Kyu Kang),정호근(Ho Keon Jeong) 대한약학회 1993 약학회지 Vol.37 No.5
Blood toluene concentrations of thirty nine Korean toluene-exposed workers in shoes making factory were checked by headspace-gas chromatographic analysis. Air toluene concentrations in each worker''s working region also checked by personal sampler during workshift and analyzed by gas chromatography. The range of blood toluene concentration was 0.15~0.84mg/L. The range of toluene concentration of each worker''s working area was 8.46~189.9ppm. The correlation between blood and air concentration of toluene was 0.824.
양정선 ( Jeong Sun Yang ),김태균 ( Tae Kyun Kim ),박인정 ( In Jeong Park ),김민기 ( Min Gi Kim ),이선웅 ( Sun Wung Lee ),허경화 ( Kyung Hwa Heo ),강성규 ( Seong Kyu Kang ) 한국산업위생학회 2008 한국산업보건학회지 Vol.18 No.3
During survey of blood lead concentration of workers who worked in lead refining industry, we found that some foreign workers showed increased blood lead level compared with that of domestic workers. The mean concentration of lead in blood for foreign workers (15%, 13 workers, mean age: 29) was 55.8 ug/dL which was over biological exposure index, while that of Korean workers (85%, 76 workers, mean age: 42) was 28.9 ug/dL. Some other biological markers of lead exposure such as ZPP and δ-ALA also showed elevated levels. Most of foreign workers stayed in dormitories near or in the factories that may cause to let them under the condition of 24 hours exposure of lead. The lack of safety manual on proper prevention of lead exposure in their own language for effective communication may be one of reasons of elevated blood lead concentration of foreign workers.