Showing 2 results for Monazami Tehrani
Davood Eskandari, Hasti Borgheipour, Mousa Jabbari, Atefe Abdpur, Ghazaleh Monazami Tehrani,
Volume 17, Issue 1 (5-2020)
Abstract
Background and Aim: Employee exposure assessment through long-term monitoring is not feasible due to the complexity of sampling and analysis methods in all operating conditions. The use of chemical exposure risk assessment methods is an appropriate way to evaluate the exposure status of chemical workers in some situations. Of course, there is a need for special considerations to provide a comprehensive technique and to address the shortcomings of current methods such as disregard for existing control measures.
Materials and Methods: In this study, three factors influencing the risk of exposure to chemicals were considered based on the Control Banding (CB) approach, including the Health Hazard Index (HHI) indicating the inherent toxic properties of chemicals, Chemical Occupational Exposure Index (OEI) aims to show the characteristics associated with process conditions and material properties and exposure modes, as well as the Control of Effectiveness Index (CEI), taking into account the engineering and management measures that affect chemical exposure. Then, according to the above method, the risk of exposure to chemicals was investigated in Marun petrochemical Complex.
Results: Chemical exposure risk index (CRI) was calculated from the factors affecting exposure.
Based on the findings of the study, exposure to benzene and 1,3 butadiene with a risk score of 20/01 and 14/35, respectively, obtained highest risk score in the HD unit and in the whole complex Due to the inherent hazards associated with these substances and other factors including exposure duration and poor effectiveness. Also, in all units, due to the low exposure time to chemicals, the lowest risk numbers were reported for similar exposure groups as the Boardman and the head of the unit.
Conclusion: The present method can be used as a non-sophisticated and valid tool for risk assessment of occupational exposure to chemicals. Also, considering the role of control measures and their impact on risk score, this method will be able to provide a more accurate calculation of the working conditions of the personnel when exposed to chemicals.
Mr Davood Eskandari, Ms Ghazaleh Monazami Tehrani, Ms Bahar Aminfar, Ms Hasti Borgheipour,
Volume 20, Issue 2 (1-2024)
Abstract
Introduction: Today, many organizations and companies have some methods and instructions to analyze the causes of accidents, but when an accident occurs, only a simple approach is implemented to analyze the causes of accidents. This study aims to investigate and identify the root causes of accidents in the country's drilling industry and provide a technique for an accurate and more comprehensive analysis of accidents with high intensity and frequency in this industry.
Materials and Methods: The present study was conducted in 4 main stages. In the first step, the lessons learned from accidents in the drilling industry were studied through the method of document review. The factors identified in the first step were weighted by the AHP-Fuzzy method and their impact on the occurrence of the accident was determined according to the expert’s opinion. One of the fatal accidents in an oil drilling company was selected and then the root causes of the accident were analyzed according to the developed model.
Results: Based on the results of the review of documents, 29 factors including organizational, occupational, and environmental factors were identified as the root causes of accidents. Among the second level criteria, the organizational factor with the weighting load of 0.533 had the highest and the environmental criteria with the weighting load of 0.0198 gained the lowest weighting load. Based on the results, it was found that job incompetence is one of the main causes of accidents, and job incompatibility and safety training are among the second and third sub-criteria and are among the main causes of the accident.
Conclusion: In the present study, three factors of organization, environment, and individual based on the theory of human factors as the root causes of industrial accidents in the drilling industry were investigated. Analysis of the study data showed that the designed tool is a simple and quantitative method to find the root causes of accidents in the drilling industry and can be used as a practical and comprehensive method for analyzing organizational accidents.
