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A Methodology for Dynamic Assessment of Laboratory Safety by SEM-SD

Author

Listed:
  • Laihao Ma

    (School of Marine Engineering, Dalian Maritime University, Dalian 116026, China)

  • Xiaoxue Ma

    (School of Public Administration and Humanities, Dalian Maritime University, Dalian 116026, China)

  • Jingwen Zhang

    (School of Public Administration and Humanities, Dalian Maritime University, Dalian 116026, China)

  • Qing Yang

    (School of Public Administration and Humanities, Dalian Maritime University, Dalian 116026, China)

  • Kai Wei

    (School of Public Administration and Humanities, Dalian Maritime University, Dalian 116026, China)

Abstract

Lab safety problems have become an impeding factor that cannot be ignored in normal teaching and scientific research activities at colleges and universities. As the risk factors of lab accidents can be conceptualized as occurring at multiple levels, systematically improving and optimizing lab safety is the crucial route to accident prevention in labs. In this paper, a novel method that integrates a structural equation model (SEM) and system dynamics (SD) is presented to dynamically assess lab safety with the characteristics of insufficient data and uncertainty. On the basis of a questionnaire investigation, the SEM was utilized to determine the influencing factors on lab safety and acquire the path coefficients among these factors, which were embedded into the SD model as the weight of the influencing factors. An illustration was carried out to test and validate the proposed method, and a sensitivity analysis was also conducted to recognize variables contributing the most to the improvement of lab safety. The results demonstrated that the safety input of human and management subsystems is the most effective to improve the lab safety; meanwhile, “safety awareness”, “emergency ability”, “operation skills”, “safety culture” and “safety training” are the top five contributing factors, which can promote lab safety in the shortest time.

Suggested Citation

  • Laihao Ma & Xiaoxue Ma & Jingwen Zhang & Qing Yang & Kai Wei, 2021. "A Methodology for Dynamic Assessment of Laboratory Safety by SEM-SD," IJERPH, MDPI, vol. 18(12), pages 1-18, June.
    • Handle: RePEc:gam:jijerp:v:18:y:2021:i:12:p:6545-:d:576965
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    References listed on IDEAS

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    1. Xiao Zhang & Xiaofeng Hu & Yiping Bai & Jiansong Wu, 2020. "Risk Assessment of Gas Leakage from School Laboratories Based on the Bayesian Network," IJERPH, MDPI, vol. 17(2), pages 1-18, January.
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    4. Xie, Tian & Wei, Yao-yao & Chen, Wei-fan & Huang, Hai-nan, 2020. "Parallel evolution and response decision method for public sentiment based on system dynamics," European Journal of Operational Research, Elsevier, vol. 287(3), pages 1131-1148.
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    Cited by:

    1. Xi Zhang & Te Zhang & Xin Wei & Zhanpeng Xiao & Weiwen Zhang, 2024. "Reducing potential dual-use risks in synthetic biology laboratory research: a dynamic model of analysis," Palgrave Communications, Palgrave Macmillan, vol. 11(1), pages 1-14, December.
    2. Li Yang & Xue Wang & Junqi Zhu & Liyan Sun & Zhiyuan Qin, 2022. "Comprehensive Evaluation of Deep Coal Miners’ Unsafe Behavior Based on HFACS-CM-SEM-SD," IJERPH, MDPI, vol. 19(17), pages 1-29, August.
    3. Laihao Ma & Xiaoxue Ma & Jingwen Zhang & Qing Yang & Kai Wei, 2021. "Identifying the Weaker Function Links in the Hazardous Chemicals Road Transportation System in China," IJERPH, MDPI, vol. 18(13), pages 1-17, July.
    4. Man Zhou & Xiancong Chen & Lei He & Franck Aristide Kiswendsida Ouedraogo, 2022. "Dual-Attitude Decision-Making Processes of Construction Worker Safety Behaviors: A Simulation-Based Approach," IJERPH, MDPI, vol. 19(21), pages 1-18, November.

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