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Showing 4 results for Type of Study: Applicable

Zhaleh Sedghi Noushabadi, Soqrat Omari Shekaftik, Agha Fatemeh Hosseini, Azadeh Ashtarinezhad,
Volume 3, Issue 3 (7-2019)
Abstract

Background: Different chemical materials especially inks are used in printing industry and lead is one of the ingredients that make up its pigments. Therefore, the objectives of present study were to examine blood lead levels and determine the correlation between hygiene behaviors and blood lead levels among workers in one of the printing industry located in the west of Tehran province. Methods: In this cross-sectional study that conducted in 2018, 80 workers of a printing house were selected. Blood samples were collected according NIOSH 8003 method and analyzed using a graphite furnace atomic absorption spectrophotometer GF 5000 model. Data were analyzed by Mann-Whitney, Kruskal-Wallis and Spearman correlation test using SPSS 20. The significance level of 0.05 considered for results. Results: The range of blood lead levels was 0.0094 to 0.1968 ppb. Individuals who worked in printing patterns process on cardboard sheets had blood lead levels higher than those working in other processes in this printing house (P < 0.001). The workers who did not use masks (P = 0.034) and gloves (P < 0.001) had higher mean lead atomic absorption than the others. Conclusion: The lack of using personal protective equipment could potentially increase the blood lead levels in printing industry workers.
Ahmad Soltanzadeh, Abolfazl Mohammadbeigi, Mohammad Fahiminia, Alireza Omidi Oskouie ,
Volume 4, Issue 3 (7-2020)
Abstract

Background: Consideration of safety principles can decrease the risk of incidents, damage, human and financial impacts, and guarantee a high effectiveness and efficiency and consequently, continuous productivity in an organization. The most important step in providing an optimal safety condition is analysis of the present safety conditions in an organization. In this regard, the present study aims to evaluate the safety risk in the faculties of Qom University of Medical Sciences. Methods: The population of this HSR research includes the Faculties of Health, Medicine and Paramedicine, Dentistry, Nursing and Midwifery, the Iranian Traditional Medicine, and Health and Religion of Qom University of Medical Sciences. This research was performed in 2019, and it has investigated the safety risk resources (fire and explosion, the objects and individuals’ falling, electricity incidents, and secondary risks). The research was performed in three phases including: 1) system analysis, 2) recognition of the safety risks, and 3) evaluation of the safety risk in accordance with the US Military Standard (MIL-STD-882). Results: Based on the results of system analysis, 228 risk resources were identified in the studied faculties. The results of evaluating the safety risk based on a two dimensional risk matrix (probability- severity) showed that 39 resources have a low and acceptable risk, 71 resources have a high and unacceptable risk, and 118 resources have a medium-level risk. Conclusion: According to the findings, in spite of the widely accepted assumption of safety of the educational environments, there should be more attention to safety issues in these environments. It is suggested to design a risk management model for identifying and evaluating the risks in these environments and proposing practical solutions for decreasing the safety risks and providing a safe environment.
Zahra Ghalichi Zaveh, Amin Babaei Pouya, Nastuna Ghanbari Sagharloo, Leila Azizi Fard, Mahbubeh Abdollahi, Alireza Khammar , Mostafa Kamali , Mohsen Poursadeqiyan ,
Volume 6, Issue 2 (4-2022)
Abstract

Background: The outbreak of coronavirus is a global crisis, which has caused many deaths and injuries around the world. Observing preventive behaviors of the general public is one of the main ways to break the chain of transmission, and get rid of this crisis. The aim of this study is to determine the extent of preventive measures regarding Coronavirus disease in the lifestyle and home-based jobs of Iranian society. Methods: In this validation, methodological study, after reviewing the opinions of experts, the authors collected questions to evaluate the extent of preventive behaviors against coronavirus (PBAC). Questions with a face validity index greater than 1.5, a Content Validity Index (CVI) index greater than 0.79, and a Content Validity Ratio (CVR) index greater than 0.62 were considered appropriate. If Cronbach's alpha coefficient was greater than 0.7, the internal reliability of the instrument was established. Results: The face validity of all questions was more than 1.5, and the face validity of all questions was confirmed. In the 5 questions, the CVI index was less than 0.79, and the CVR index was less than 0.62. After removing those 5 questions, the final questionnaire of 16 questions was introduced as a tool. Also, the internal reliability of the instrument was (α = 0.71). Conclusion: Results of this study demonstrated that the proposed questionnaire is suitable for measuring the level of preventive PBAC regarding the lifestyle and home-based businesses, and has good validity and reliability as a useable tool.
Rajabali Hokmabadi, Ali Karimi,
Volume 6, Issue 3 (7-2022)
Abstract

Background: The hazard and operability study (HAZOP) method is a risk assessment method based on engineering systems used for qualitative analysis or quantitative evaluation. It is mainly used to discover potential hazards and operational difficulties in the design and qualitative stages of chemical systems. The study aims to apply the HAZOP method in process and safety operations at gas depressurization station. Methods: This descriptive study was performed at CGS station. The station was divided into four principal nodes including: filter, heater, regulator, and odorize part. Required information for HAZOP worksheets were gathered by operational procedures, daily reports and interviews with engineers and operators working at the station. To determine the severity of consequences and probability of occurrence of scenarios that were predicted based on the risk matrix, the amount of risk was specified and the necessary suggestions were made in this regard. Results: According to this study, the operational indicators in the pressure reducing station process included pressure, flow, level and temperature. 22 main deviations and 50 causes of failures were identified. 5 deviations (23%) were in the low risk range (green area) and 17 (77%) were in the medium risk range (yellow area). Conclusions:  Causes and effects of deviations in operational parameters at four nodes in gas depressurization station were identified by HAZOP. Preventive actions were emphasized, such as consistent inspection of pipelines, preventive and timely maintenance and preparing a well-scheduled plan for inspecting the equipment in terms of corrosion, inspection, and design revision.


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