
Hazards, Terrorism, and Weapons of Mass Destruction ◾ 45
Even a relatively inept attack with limited mortality and property damage could
accomplish the terrorists’ goal of demoralization. Based on the US DoD CBRN
(2008), chemical substances that are used in terrorism are intended to kill, seriously
injure, or incapacitate humans through their physiological eects. e quantity of
chemicals needed for terrorists to generate mass casualties is normally based on the
LD
50
of the chemical or chemical compound. e LD
50
of the chemical threats are
presented herein.
2.6.1 Chemicals’ LD
50
LD stands for lethal dose, and LD
50
is the amount of chemical(s