Showing 3 results for Laboratory
Mehrzad Ebrahimzadeh, Afshin Maleki, Arian Azadnia, Hamze Salehzadeh,
Volume 2, Issue 3 (7-2018)
Abstract
Background: The aim of this study was to determine the concentration of volatile organic compounds in the air of laboratories in Kurdistan Medical Sciences University and its related factors in 2017. Methods: This was a descriptive-analytic study. After measuring the concentration of volatile organic compounds, the relationship of the factors affecting the concentration of these compounds was determined. In this study, eight laboratories in the health, medical and nursing faculty were entered into the study by the census method. The concentration of volatile organic compounds was measured by using the Phocheck machine of the tiger model, made in England, equipped with a PID bulb. Other variables affecting the concentration of these compounds, including temperature, moisture, type of service provided during the visit, and the type of ventilation in seasons of spring and summer were measured. Then statistical analysis was performed using SPSS v.18 software, t-test, and ANOVA. Results: The results of the study showed that the maximum concentrations of organic compounds were related to toluene (mean of concentration 374.61 ppb) and the lowest was related to ethylbenzene (mean of concentration 124.24 ppb). Also, the results showed that there was a significant relationship between the concentration of these compounds and the factors affecting them. Conclusion: Due to the lack of proper ventilation in all laboratories, it is recommended that a suitable ventilation system could be used to reduce the contamination concentration.
Hossein Fallah, Abolfazl Barkhordari, Gholamhossein Halvani, Rajabali Hokmabadi,
Volume 2, Issue 3 (7-2018)
Abstract
Background: Designing training aids for students to increase their practical capability and skills is done by using modern educational methods. The aim of this study was to design a simulator of airborne pollutants for measuring gases, vapors and particles in the lab for student training. Methods: The present study investigated different systems based on reviewing the literature of conducted research studies around the world. Then, designing the simulator system of the airborne pollutants was carried out after studying the capabilities of available systems, considering the viewpoints of experts and focusing on the aims of the study. Results: The designed chamber consisted of a main component which, in addition to some complexes such as the blowing system, the evacuation funnel, the warming chamber, and control box, made the production and simulation of the particle and gaseous pollutants feasible in different atmospheric conditions. Conclusions: The production and simulation of airborne pollutants in an experimental chamber under controlled conditions can facilitate the accomplishment of different assessments on pollutants. The designed device benefits both having a simple yet creative fabricated system and low manufacturing costs. Therefore, it can be used readily as a suitable device for extensive research on pollutants in the educational and research centers.
Ahmad Soltanzadeh, Hamidreza Heidari, Mis Zahra Sadat Javadi Hoseini, Maryam Sorooshnia, Hoda Rahimifard,
Volume 5, Issue 2 (4-2021)
Abstract
Background: Considering the reported positive effects of risk management practices and monitoring them by conducting risk assessments and achieving safety improvements, this study was conducted to assess the risks in the educational laboratories of Qom University of Medical Sciences. Methods: This cross-sectional study was conducted in 13 medical and paramedical educational laboratories. To assess safety conditions in the laboratories, a comprehensive safety checklist was developed, and in order to assess the risks of laboratories, a method called FMEA was used. Two trained occupational health and safety experts evaluated the laboratories understudy, identified the hazards, completed the relevant checklists, and subsequently ranked them based on severity, occurrence, and detection. Finally, a comparison was made based on the calculated Risk Priority Number (RPN) for each hazard. Results: In general, the fire hazards and electrical hazards of 54% of the laboratories have been accompanied by normal risk (RPN< 70), and nearly 8% of the laboratories had critical fire and electrical risks, including chemistry and immunology laboratories. In the case of equipment hazards, nearly 60% of the laboratories had critical or semi-critical risk levels. It is indicated that health exposure hazards were the most important hazards compared to the other ones. So that 61.5% of the laboratories had critical risk, and 15.3 % of them categorized as semi-critical risk. The highest RPN allocated to the biochemistry and chemistry laboratories (RPN>250). Conclusion: The results of this study showed that in general, three types of hazards, including health hazards, equipment, and material storage, should be given priority.
