Differentiate hazards and disaster. What are the steps involved in hazard assessment? Explain.

Difference Between Hazards and Disasters

In the context of environmental and occupational hazards, understanding the distinction between hazards and disasters is fundamental for effective risk management, prevention, and mitigation strategies.

A hazard is a potential source of harm or adverse health effect on a person or the environment. It represents the possibility of danger but has not yet resulted in any damage or loss. Hazards can be natural (like earthquakes or floods), technological (like chemical spills), or occupational (like exposure to harmful substances at the workplace). In environmental and occupational contexts, hazards include chemical, biological, physical, ergonomic, and psychosocial risks that could potentially harm human health or ecosystems.

On the other hand, a disaster occurs when a hazard actually causes widespread damage, destruction, or loss of life. A disaster is the realization of a hazard under conditions of vulnerability. For example, an earthquake is a natural hazard, but it becomes a disaster when it causes buildings to collapse, leading to loss of life and property. Similarly, exposure to toxic chemicals in a factory setting is a hazard, but it becomes a disaster if there is a leak or explosion resulting in injuries or fatalities.

Key Differences:

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|---------------------------|------------------------------------------------------------|------------------------------------------------------------|
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