Social Impacts of Disaster - FEMA

In the case of Extremely Hazardous Substances (EHSs) defined under SARA Title III, Vulnerable Zones (VZs) can be computed using data on the chemical’s toxicity, its quantity available for release, the type of spill (liquid or gaseous), the postulated release duration (e.g., 10 minutes), assumed meteorological conditions (wind speed and ... ................
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