Page 233 - CHEF Guide

Impact Evaluation

Table 14-1 Effects of thermal radiation

Effects of Thermal Radiation, CCPS Guidelines for Consequence Serious Injury/Fatality Levels for Thermal Radiation, CCPS Guidelines

Analysis of Chemical Releases (1999) pg 265 for Consequence Analysis of Chemical Releases (1999) pg 265

Effects of Thermal Radiation, CCPS Guidelines for Consequence Serious Injury/Fatality Levels for Thermal Radiation, CCPS Guidelines
Figure 14-2 Serious injury/fatality levels for thermal radiation
for Consequence Analysis of Chemical Releases (1999) pg 265
Analysis of Chemical Releases (1999) pg 265  Exposure to 4 kW/m may be a reasonable “threshold” Level of Concern for pool and jet fires.
2
2
2
 Exposure to 10 kW/m for 100 seconds or 100 kW/m for 10 seconds may be a reasonable “severe impact” Level
of Concern for fireballs.
Toxic Dose – The combination of concentration and time for inhalation of a toxic gas that produces a specific harmful
effect.

In Risk Analysis, of primary interest is the dose that may result in fatality or severe injury (a severe impact). A “severe
impact” Level of Concern could be a concentration representing a fraction of lethality such as LD 01 or LD50. A “threshold”
Level of Concern where only mild human harm may result could be one-hour Emergency Response Planning Guidelines
level 2 or level 3 (ERPG-2, ERPG-3).

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