Abstract
The purpose of risk assessment (RA) is the determination of a quantitative and/or qualitative value of risk related to a concrete situation and a recognized hazard. The results of it are used to consider risk controls for preventing occupational and process accidents. The number of workplaces which carry out RA is increasing under administrative measures for industrial disaster prevention based on RA. However, it is most often the case that the original purpose of RA are not understood correctly and truly effective risk controls based on the appropriate risk estimation are not implemented.
We focused on the workplaces in the chemical process industries (petroleum refinery, petroleum chemical, chemical, etc.) and carried out a hearing investigation and held a discussion with safety experts. The current states and issues, which are related to the RA and the implementation of risk controls, and the subjects of risk information sharing through the life-cycle of a chemical process plant were clarified. For these issues and subjects, we propose a tentative integrated approach to RA and the implementation of risk controls for preventing occupational and process accidents.
