Which are the four categories of consequence analysis in PSM?

The four categories of consequence analysis in Process Safety Management (PSM) focus on the potential outcomes of hazardous events that may arise from chemical processes. The correct answer highlights the key event types associated with high-risk scenarios: chemical release, fire, explosion, and toxic exposure.

Chemical release involves the unintended discharge of hazardous substances into the environment, which can lead to toxic environmental effects or health risks for individuals nearby. Fire scenarios are critical to analyze as they can lead to both immediate harm and broader impacts on equipment and processes. Explosion events represent another significant risk that can cause catastrophic damage and serious injuries. Finally, toxic exposure pertains to situations where individuals may be exposed to harmful substances that could affect their health.

By focusing on these specific categories, PSM aims to identify, assess, and mitigate risks associated with hazardous processes, thereby enhancing workplace safety and preventing catastrophic incidents. The emphasis on these categories helps organizations ensure robust safety measures and prepare for incidents that may arise due to the nature of their operations.