Showing 3 results for Risk Assessment
J Adl, A Ghahramani , J Nasel Saraji ,
Volume 3, Issue 4 (7-2005)
Abstract
stundy (HAZOP) and the component’s failures of major equipments were assessed by
Failure mode and Effect Analysis (FMEA).
Totally 68 hazards were identified and their risks were calculated. The highest risk
(60) was belonged to the reduction of gas temperature before entering to the refinery
and failure of DEA cooling system at the final node (DE). The failures of P-6 pump,
F.C.V.4 valve, L.C.V.2 and F.C.V.12 (all in the same node) and reduction of gas
temperature in nodes AB, BC and CD had the lowest calculated risk (12). Comparing
with the acceptable level of risk in the refinery which was 200, all of the identified
hazards risk were very low therefore did not need any appropriate measure of risk
reduction to be proposed.
For overcoming the fact that both HAZOP and FMEA techniques, instead of being
performed by a team was accomplished by both of us, we used the consultations given
us by the experienced exploitation engineers of under study unit. This consultation
was also very useful in fulfilling deficiencies of existing record keeping system.
Performing the protective maintenance and preparing a precise timing program for
P.M was given as a main proposal for risk reduction by decreasing the probability of
occurrence.
M Hajaghazadeh, J Nasl Saraji, M Hosseini, J Adl,
Volume 6, Issue 1 (6-2008)
Abstract
Background and Aim: Work-related Musculoskeletal Disorders (WMSDs) are the most prevalent occupational diseases and injuries. The aim of this investigation was WMSDs risk factors study in building construction industry by PATH (Posture, Activity, Tools and Handling) method.
Materials and Methods: This analytical-descriptive and cross-sectional study was conducted in four construction sites. A total of 3100 observations of 89 workers in 14 jobs were obtained. The percent of time determined for trunk, legs and hands postures, and manual material handling activities, used tools and handling in job tasks.
Results: Trunk, legs and hands postures, tools and objects weight differed significantly between stages (P<0.0001). Neutral trunk posture was observed frequently. Neutral legs and hands postures were observed greater than %50 and %80 of the time respectively in studied workers. Tools are used with different frequency in studied jobs. Loads with less than 5 Kg were handled repeatedly.
Conclusion: The result of this study can be used to reduce musculoskeletal disorders in construction workers. This study revealed construction workers spent more time with neutral postures. But ergonomic interventions should be accomplished in specified jobs.
Maryam Tajvar, Mohammad Sarkout Ghosi, Elham Ehsani-Chimeh,
Volume 21, Issue 2 (9-2023)
Abstract
Background and Aim: Assessment of disease risk with the ultimatevaim of implementing preventive strategies in the workplace is a necessity. This study was conducted to assess the risk of COVID-19 in hospital occupational groups in Saghez city, Iran.
Materials and Methods: This cross-sectional study was conducted in 2021 among three hospital occupational groups (total sample size = 300) in Saghez city, Iran, including physicians and nurses, as well as laboratory, administrative, financial, radiology and general service personnel, using the COVID-19 rapid risk analysis technique. Data were collected using a valid questionnaire based on the Likert scale and analysed (to determine acceptable, tolerable and intolerable risks) using the descriptive and inferential methods, the software used being SPSS-26.
Results: As regards the probability variable, the highest probability of occurrence of COVID-19 was related to the general service and administrative-financial occupational groups with an average of 1.6 and 1.5, respectively. The level of attitude was generally good and excellent. The analysis of the severity of the outcome variable was at a critical level in the physicians group (42.5) and at a catastrophic level in the other groups. In total, all occupations were rated at an unacceptable risk level (H), the general service and administrative-financial occupational groups being at a higher risk than other groups. There were statistically significant differences between the types of occupation on the one hand and the variables studied, as well as the individual characteristics and COVID-19 morbidity on the other hand.
Conclusion: Considering the high risk of occurrence of COVID-19 among the hospital professionals it is essential to develop and implement plans aiming at preventing and reducing the disease risk in them.
