الفهرس 
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Abstract
Background: Risk is generally a common place and broadly relevant in regular day to day existence. Exposure to risk differs between social orders. Risk assessment assesses hazards by measuring/assessing the probability and the severity of the related articulated effects. Risk perception alludes to individuals’ decisions and assessments of hazards they (or their offices, or situations) are or may be exposed to. The study was designed aiming at: providing an insight of employee risk perception in some selected industries; investigating subjective risk perception among employees of some selected industries; examining and analyzing the framework of judgments of employees made when they are asked to evaluate specific hazardous activities; and comparing the judgments in terms of individual, employment, organizational, and cross-national factors. Materials & Methods: A cross-sectional survey study was conducted to assess health risk perception among workers exposed to hazardous chemicals in workplace environment. Industries using ammonia and sulfur dioxide gases in their industrial processes were selected since they represent the most common exposure in the selected area. Results: Results revealed that workers’ perception was valid tool to justify qualitative risk assessment of hazardous chemicals in workplace. Perception of workers can be used as indicator of the NH3 & SO2 risk magnitude. Monitoring of hazardous chemicals should be always considered. Direct strong significant correlation was found between hazardous gas (NH3 and SO2) measurements’ risk assessment and perception risk factors. Conclusion: Perception of workers can be used as indicator of risk magnitude of chemical hazards to guide control of these hazards.
General Objective, To assess health risk perception among workers exposed to hazardous chemicals in some industries.
Specific Objectives, To provide an insight of employee risk perception in some selected industries., To investigate subjective risk perception among employees of some selected industries, To examine and analyze the framework of judgments of employees made when they are asked to evaluate specific hazardous activities., To compare the judgments in terms of individual, employment, organizational, and cross-national factors.