[Characteristics of mass chemical disasters].

Every day we are encountering different hazardous material which characteristics are more or less unknown. Due to increased technological development in chemical industry there is evident increase of new hazardous materials. With this fact and with the evident change in terrorist philosophy there is a greater chance for mass casualty incident occurrence.

[Models of management in mass disasters and critical situations].

Good organization and coordination of emergency services are one of the most crucial factors, which influences the number of survivors and severity of incident overall health and structural long-term damages. Different studies showed that poor leadership is the main cause for poor intervention results at mass casualty incidents. This article briefly presents French, American, and English incident command systems at mass casualty incident and other crisis.

[Organization of emergency medical care in mass disasters].

Mass casualty incident is event with several injured or acutely ill persons, which is impossible to manage with available resources bit it can be managed after activation of special plan and spare resources. Every day at least one mass casualty incident happens in the world and that varies from Ljubljana Ambulance Service coverage area where 11 such incidents happened in the last 40 years. Success of intervention at mass casualty incident depends on quality of preparation for such event.