• 제목/요약/키워드: Occupational Safety

검색결과 3,181건 처리시간 0.026초

A Study for Health Hazard Evaluation of Methylene Chloride Evaporated from the Tear Gas Mixture

  • Park, Seung-Hyun;Chung, Eun-Kyo;Yi, Gwang-Yong;Chung, Kwang-Jae;Shin, Jung-Ah;Lee, In-Seop
    • Safety and Health at Work
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    • 제1권1호
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    • pp.98-101
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    • 2010
  • This study explored the health hazard of those exposed to methylene chloride by assessing its atmospheric concentration when a tear gas mixture was aerially dispersed. The concentration of methylene chloride ranged from 311.1-980.3 ppm (geometric mean, 555.8 ppm), 30 seconds after the dispersion started. However, the concentration fell rapidly to below 10 ppm after dispersion was completed. The concentration during the dispersion did not surpass the National Institute for Occupational Safety and Health 'immediately dangerous to life or health' value of 2,300 ppm, but did exceed the American Conference of Governmental Industrial Hygienists excursion limit of 250 ppm. Since methylene chloride is highly volatile (vapor pressure, 349 mmHg at $20^{\circ}C$), the post-dispersion atmospheric concentration can rise instantaneously. Moreover, the o-chlorobenzylidenemalononitrile formulation of tear gas (CS gas) is an acute upper respiratory tract irritant. Therefore, tear gas mixtures should be handled with delicate care.

Evaluation of the Quality of Occupational Health and Safety Management Systems Based on Key Performance Indicators in Certified Organizations

  • Mohammadfam, Iraj;Kamalinia, Mojtaba;Momeni, Mansour;Golmohammadi, Rostam;Hamidi, Yadollah;Soltanian, Alireza
    • Safety and Health at Work
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    • 제8권2호
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    • pp.156-161
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    • 2017
  • Background: Occupational Health and Safety Management Systems are becoming more widespread in organizations. Consequently, their effectiveness has become a core topic for researchers. This paper evaluates the performance of the Occupational Health and Safety Assessment Series 18001 specification in certified companies in Iran. Methods: The evaluation is based on a comparison of specific criteria and indictors related to occupational health and safety management practices in three certified and three noncertified companies. Results: Findings indicate that the performance of certified companies with respect to occupational health and safety management practices is significantly better than that of noncertified companies. Conclusion: Occupational Health and Safety Assessment Series 18001-certified companies have a better level of occupational health and safety; this supports the argument that Occupational Health and Safety Management Systems play an important strategic role in health and safety in the workplace.

Inhalation toxicity assesment of C.I.No. Reactive Red 195 in Rats (아조계 반응성염료 C.I.No. Reactive Red 195의 흡입독성평가)

  • Chung, Yong Hyun;Han, Jeong Hee;Song, Kyung Seuk;Kim, Hyeon Yeong;Lee, Sung Bae;Yu, Il Je
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • 제11권3호
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    • pp.198-205
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    • 2001
  • Many reactive dyes have been used in occupational settings without knowing their toxicity and health hazard information. To investigate the toxicity of reactive dye, C.I.No. Reactive Red 195 was exposed to male and female Sprague Dawley rats by inhalation for 28 days. The rats were exposed C.I.No. Reactive Red 195 for 6 hrs per day and 5days per week. The concentrations for the inhalation exposure were 0, 10, 40 and $160mg/m^3$. After 4 weeks of exposure, rats were examined for exposure related changes through pathology, blood biochemistry and hematology. There were no dose related changes including clinical signs, body weight and relative organ weight changes, hematological and biochemical and histopathological findings. The results indicate that no observed adverse effect level (NOAEL) of 28 days inhalatrion toxicity test for C.I.No. Reactive Red 195 was $160mg/m^3$.

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Acute and 2 Weeks Repeated Irritation Study of Cutting oils

  • Lim, Cheol-Hong;Kim, Hyeon-Young;Jeon, Yoon-Seok;Yu, Il-Je
    • Proceedings of the Korean Society of Toxicology Conference
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    • 한국독성학회 2001년도 International Symposium on Signal transduction in Toxicology
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    • pp.134-134
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    • 2001
  • Cutting oils are complex mixtures of hydrocarbons, comprising of certain fractions of mineral oil, which are being frequently used as lubricating and heat transferring agents in various machine and tool industries. We investigated an acute and 2 weeks repeated irritation studies of two cutting oils (Cimperial 1010 as water-soluble cutting oil, and MSN 120 as insoluble cutting oil) using guinea pigs.(omitted)

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MSDSs Reliability Evaluation in Workplaces Manufacturing Aromatic Hydrocarbon (방향족 탄화수소 화학물질 제조사업장의 MSDS 신뢰성 평가 연구)

  • Lee, Kwon Seob;Choi, Jin Hee;Jo, Jihoon;Choi, Sung Bong;Lee, Jong Han;Yang, Jeong Sun
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • 제19권4호
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    • pp.370-380
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    • 2009
  • Reliable hazard and risk communication is needed to prevent the safety accident & occupational disease through right use of chemicals and MSDS(Material Safety Data Sheet) is mainly used as such a tool of communication. MSDS policy has been put into effect in order to prevent the safety accident & occupational disease through right use of chemicals and fulfill workers' right to know. If information on MSDS lacks reliability due to its inaccuracy, prevention of the various effects related with environmental safety & health in advance is not possible to achieve. The most essential thing regarding authoring MSDS is to exactly evaluate the composition and ingredients of the chemical and include reliability-guaranteed information. Therefore, in this study reliability was evaluated on MSDSs in 15 aromatic hydrocarbons(benzene, toluene, xylene, etc.) manufacturers and ways to secure reliability of MSDS were suggested. The results showed 93.5% of composition agreement rate and 89% of reliability on each section in MSDSs. In order to curb MSDSs with low reliability, examination on CBI(confidential business information) in MSDS, certification of MSDS, collection and verification of MSDS are suggested.

Study on Inhalation Toxicity of Halogen Compound Using Rats

  • Kim, Hyeon-Yeong;Lim, Cheol-Hong;Chung, Yong-Hyun;Maeng, Seung-Hee;Lee, Sung-Bae;Han, Jeong-Hee;Jheon, Yoon-Seok;Lee, Yong-Mook
    • Proceedings of the Korea Society of Environmental Toocicology Conference
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    • 한국환경독성학회 2002년도 춘계학술대회(Genomics, Proteomics, and Risk Assesment):환경독성 및 위해성 평가 국제 심포지움
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    • pp.37-38
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    • 2002
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Corporate Characteristics and Occupational Injuries by Industry

  • Sunyoung Park;Myung-Joong Kim
    • Safety and Health at Work
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    • 제14권3호
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    • pp.259-266
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    • 2023
  • Background: Recent research on occupational injuries in companies has faced difficulties in obtaining representative data, leading to studies relying on surveys or case studies. Moreover, it is difficult to find studies on how a company's industry characteristics affect occupational injuries. This study aims to address these limitations. Methods: We collected 11 years of disclosure data from 1,247 listed companies in the Korean stock market and combined it with their occupational injury histories collected by the Republic of Korea Occupational Safety and Health Agency (KOSHA) to build a dataset. We attempted to analyze a linear panel model by dividing the dataset into manufacturing, construction, and other industries. Results: The higher proportion of full-time employees and better job skills correlate with lower occupational injuries in other industries. The wage increase reduces occupational injuries in manufacturing and other industries, but the substitution effect produces the opposite outcome in construction. Also, foreign ownership and credit ratings increase effectively reduce occupational injuries mainly in the manufacturing industry. Conclusion: Our results suggest that in explaining the relationship between corporate characteristics and occupational injuries, it is necessary to consider the nature of the industry more closely, and in particular, employment and labor policies for preventing occupational injuries need to be selectively applied according to industry. In addition, to improve the limitations and increase the usability of the research results, further detailed studies are needed in the future.

Effects of Occupational Safety Communication in Workplace on Safety Consciousness and Action of Employees (사업장내 의사소통이 안전의식과 행위에 미치는 영향)

  • Seo, Nam-Kyu;Lee, Yong-Gab;Kim, Wang-Bae;Lee, Kyeong-Yong
    • Journal of the Korea Safety Management & Science
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    • 제12권2호
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    • pp.9-16
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    • 2010
  • A major purpose of management or occupational safety is a significant decrease in safety accidents. With this view, the establishment of occupational safety culture and the building of occupational communication network stand out as being more important than the past. This study has analysed the positive effects of occupational safety communication on safety consciousness and action of the employees in workplace. And it is confirmed that the occupational safety communication in workplace is the essential mechanism, through which the workers internalize safety consciousness and act safely. The safety consciousness and action of the employees are formed in safety culture, which is not only legal regulations, but a daily communication network in workplace. In these sense, the building of the occupational safety communication network is decisive for the establishment of safety culture. For these reasons, this study makes the proposition that a firm promotion of occupational communication network is necessary, which connects the safety culture and a effective safety management in workplace.

An Analysis of the Effect of Employer's Safety Management Commitment on Occupational Accident - Focusing on the Mediating Effect of Safety Climate and Safety Expenditure - (사업주의 안전경영의지가 산업재해에 미치는 영향 분석 - 안전분위기와 안전지출의 매개효과를 중심으로 -)

  • Dong-Je Jo
    • Journal of the Korean Society of Safety
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    • 제38권1호
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    • pp.62-69
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    • 2023
  • We need a new approach to reduce serious occupational accidents. This needs a commitment to secure employer's safety, characterized by a culture that prevents occupational accidents and appropriates safety expenditure. This study analyzed the factors that relate how a safety management commitment to safety climate in the workplace and safety expenditure affects the generation of occupational accidents. The summary of the result is as follows. First, both safety climate and safety expenditure have direct negative effects on the generation of occupational accidents (-0.136 [p = 0.010] and -0.100 [p = 0.008] respectively). Second, the safety management commitment has no significant direct effect towards generating occupational accidents (p = 0.105). Third, the safety management commitment has positive effects toward both building a safety climate and increasing safety expenditure (0.664 [p = 0.000] and 0.178 [p = 0.000] respectively). The safety management commitment however, has negative effects on generating occupational accidents (-0.090 [p = 0.004] through safety climate and -0.018 [p = 0.004] through safety expenditure). Hence, the safety management commitment has positive effects on decreasing occupational accidents through safety climate and safety expenditure (-0.108 [p = 0.004]). In conclusion, the safety management commitment by employers reduces occupational accidents through its impact on safety climate and safety expenditure in work places. Therefore, in order to reduce accidents, the employer should focus on creating a safety climate and investing in safety expenditure in the work place.