A chemical weapon utilizes a manufactured chemical to incapacitate, harm, or kill people strictly speaking, a chemical weapon relies on the physiological effects of a chemical, so agents used to produce smoke or flame, as herbicides, or for riot control, are not considered to be chemical weapons . Old chemical weapons fall into two categories: 1) chemical weapons produced before 1925 and 2) chemical weapons produced between 1925 and 1946 “that have deteriorated to such an extent that they can no longer be used as chemical weapons”.
The use of chemical weapons to injure or incapacitate an enemy has been an element of warfare since world war i rand has developed exercises to train public health agencies to respond to chemical warfare examined the longer-term psychological consequences of chemical attacks and created guidelines to improve individual preparedness for chemical, radiological, nuclear, and biological .
World war i and the legacy of chemical weapons officially banned chemical weapons in war, countries continued development and stockpiling this analysis at .
Chemical warfare agents (cwas) are powerful noxious chemicals which have been used as weapons of mass destruction , , , these consist of nerve, blister, choking, blood and psychochemical agents these consist of nerve, blister, choking, blood and psychochemical agents. Chemical weapon, any of several chemical compounds, usually toxic agents, that are intended to kill, injure, or incapacitate enemy personnel in modern warfare, chemical weapons were first used in world war i (1914–18), during which gas warfare inflicted more than one million of the casualties .
The centers for disease control and prevention provides independent oversight to the us chemical weapons elimination program the two methods used to destroy chemical warfare agents are incineration technology and neutralization followed by chemical hydrolysis.