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일부 세탁소의 유기용제 관리실태 및 공기중 노출농도에 관한 조사
노영만,권기범,박승현,정지연 한국산업위생학회 2001 한국산업보건학회지 Vol.11 No.1
This study was conducted to identify the current status of occupational safety and health by checklist and to evaluate the airborne exposure to chemicals and to provide the appropriate recommendation for safety and health of laundries. A total of 20 laundries located in the Gyungi district area were surveyed from July 20 to September 15, 2000. The prevalence of laundries having a stove and gas range were found to be 25 % and 55 %, respectively. Smoking is not allowed in 60 % of the laundries. Only 10 % of dry-cleaners were isolated. Ventilation system in laundries had not been annually inspected. Most of the workers didn't put on respirators, MSDS were not available, and storage bottles did not contain warning labels. The bulk samples of dry cleaning agent include many chemicals that are not controlled by the MOL in Korea. The detected airborne organic solvents in the laundries were benzene, toluene, p-xylene, m-xylene, o-xylene, perchloroethylene, and 2-butoxy ethanol. The airborne concentrations of organic solvents were much less than the occupational exposure limits proposed by the Ministry of Labor(MOL) in Korea. But the concentrations of benzene exceeded the TLV of ACGIH. This study showed that the current status of occupational safety and health was not appropriate for workers in laundries. It is recommended that laundry workers should be educated for the treatment and storage of hazardous organic solvents to improve the occupational safety and health of the working environment as well as MSDS usage. Also, extended research and survey for the organic solvents that are not controlled by the MOL has to be conducted.
유방암 환자와 정상여성의 혈액 및 지방조직 중 PCBs 형태에 관한 연구
노영만,이강숙,구정완,장경순 한국환경보건학회 2003 한국환경보건학회지 Vol.29 No.2
The purpose of this study was to identify the distribution of non-ortho and mono-ortho PCB congeners and homologues in adipose tissues and sera of women with breast cancer. The collected samples were 25 adipose tissues and 33 sera from women with breast cancer. The samples from the control group were 49 adipose tissues and 52 sera. The levels of three non-ortho and eight mono-ortho PCBs identified in adipose tissue and serum samples were determined by GC/MSD and GC/ECD analyses. Non-ortho and mono-ortho PCB congeners were more dominant in the control group than in the case group for serum samples. The Tetra-PCB and the Hexa-, Hepta-PCB were more dominant in tale and control groups, respectively. The level of PCB homologues in normal women was similar to that of the normal human milk samples. However, the levels of PCB homologues from breast cancer patients were almost same the level of sample from environment. As a result of this study, it is suggested that breast cancer could be related to environmental factors such as PCB level in stack gas and soil sample. More extended research should be to verify this result.
노영만,박화미,이철민,김윤신,이상운,석미희,정춘화 한국실내환경학회 2007 한국실내환경학회지 Vol.4 No.3
This study was performed to investigate the characteristics of asbestos distribution in 6 public and 6 school buildings from August to September in 2006. The bulk samples were analysed by PLM(polarized light microscope). Also the airborne samples were analysed PCM(phase contrast microscope) and confirmed by SEM-EDX(scanning electron microscope-energy dispersive using X-ray analysis) method. The 6 public buildings included the ACM(asbestos containing material) ranged 2-7 % of chrysotile in 70 % of samples from ceiling, floor tile, and wall board and has 20 % tremolite in 2 ceiling plaster. The 6 school buildings were identified 1.5 % tremolite in one sample and showed the similar asbestos distribution with the public building. The airborne concentrations of fiber materials were ranged with 0.000-0.017 f/cc in public places and 0.000-0.012 f/cc in school building by PCM. However, the asbestos fibers could not be found by SEM-EDX. In the result of physical assessment of ACM in each buildings, it is considered that there is no chance of a hazardous situation because the ACM is not friable. Its suggested that the asbestos control plan should be established to prevent asbestos exposure to occupants from damaged ACM by repairing and custodial work.
노영만,No, Yeong-Man 대한산업보건협회 1995 산업보건 Vol.89 No.-
인터넷은 한마디로 "정보의 바다"라고 할 수 있다. 다른 방향에서 본다면 인터넷이란 하나의 거대한 도서관이라고도 할 수 있다. 도서관에서는 각 정보를 색인화하여 쉽게 정보를 찾아 볼수 있게 되어 있고 새로운 정보가 나오면 추가로 색인을 재 정리하는 시스템으로 되어 있다. 인터넷도 도서관의 색인 시스템과 마ㅏㄴ가지로 전세계의 전산망 특히 산업보건과 관련된 기관에 접속하여 키보드로 산업보건정보를 찾을수 있게 되어 있다. 그렇다면 우리가 어떻게 전세계에 산재되어 있는 대형, 소형, IBM, 매킨토시 컴퓨터의 전산망에 접근하여 정보를 찾아 낼 수 있는가? 하고 의문을 갖는 사람들이 있을 것이다. 인터넷이 바로 그것을 가능하게 해준다. 그러면 어떻게 인터넷에 접근을 할 수 있는가? 많은 대학의 전산망, 교육망, 연구망을 통해 인터넷에 연결되어 있고 여러가지 상업서비스도 생겨나서 인터넷접속이 얼마든지 가능하다. 그러나 여기에는 또 한가지의 문제가 있다. 인터넷은 UNIX 운영시스템으로 구성되어 있기 때문에 약간의 UNIX언어를 알아야 인터넷 접근이 가능하다는 것이다. 이런한 문제 때문에 일반인들은 인터넷의 접근을 회피하게 된다. 그러나 이러한 단점은 World Wide Web(WWW)와 Web browser라는 프로그램이 나오면서 해결되었고 요즈음 일반적으로 많이 사용하고 있는browser는 Mosaic과 Netscape라는 프로그램이다. Netscape은 UNIX운영시스템이 탑재된 work station이나 대형컴퓨터에 보다 많이 이용되고 일반 개인용컴퓨터 사용자는 Mosaic 프로그램 버그(bug)가 적기 때문에 주로 사용하고 있다. Netscape도 사용법에 있어서는 Mosaic과 별 차이가 없다. 필자는 Netscape보다는 Mosaic을 주로 사용해 왔기 때문에 Mosaic을 이용하여 인터넷에 접근하는 방법과 필자가 접속해 본 미국의 산업보건관련 기관을 소개하고자 한다.