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Incidence Investigation of Accidents in Chemical Industries: A Comprehensive Study Based on Factor Analysis Publisher



Soltanzadeh A1 ; Yarandi MS2 ; Jazari MD3 ; Mahdinia M4
Authors
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Authors Affiliations
  1. 1. Department of Occupational Safety & Health Engineering, Faculty of Health, Research Center for Environmental Pollutants, Qom University of Medical Sciences, Qom, Iran
  2. 2. Department of Occupational Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Occupational Health, Neyshabur University of Medical Sciences, Neyshabur, Iran
  4. 4. Department of Occupational Safety & Health Engineering, Faculty of Health, Qom University of Medical Sciences, Qom, Iran

Source: Process Safety Progress Published:2022


Abstract

This study aimed to identify factors affecting the incidence of chemical accidents in chemical process industries. The present study investigated 840 accidents in 42 chemical process industries over 11 years (2008–2018). Data analysis was conducted using exploratory and confirmatory factor analysis (EFA and CFA) and structural equation modeling (SEM). Data analysis was done using IBM SPSS AMOS v. 22. Moreover, χ2/df, RMSEA, CFI, NFI, and NNFA (TLI) indices were used as model fit indices. The descriptive results showed that 45.3% and 32.14% of the accidents were related to transportation and the release of chemicals, respectively. Factor analysis showed that 6 latent factors and 37 indicator variables affected the accidents. SEM findings showed that latent factors, including individual and occupational training, risk management, and their indicator variables, had indirect effects on the chemical accidents (P < 0.05). In contrast, unsafe conditions and unsafe acts latent factors with their indicator variables had a direct impact on the incidence of chemical accidents (P < 0.05). The findings confirmed that chemical accidents are affected by different causal layers. Using different methods of accident analysis and combining them with scientific and updated techniques of other sciences, that is, mathematics, as well as statistics, can improve accident analysis and controlling methodologies. © 2022 American Institute of Chemical Engineers.
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