A chemical warfare agent is a chemical substance excluding riot control agents, herbicides, smoke, and flame, used in military operations to kill, seriously injure, or incapacitate though its physiological effects. Chemical warfare agents include blood, nerve, blister, choking, and incapacitating agents.^[61]

The general population limit is the average concentration below which the general population, including children and the elderly, could remain indefinitely with no effects. For example, the general population limit for mustard is 0.432 milligram-minute per cubic meter of air (0.0001 x 72 hours x 60 minutes).^[62]

GulfLINK

GulfLINK is a World Wide Web site maintained by the Office of the Assistant to the Secretary of Defense for Gulf War Illnesses, Medical Readiness, and Military Deployment (www.gulflink.health.mil).

The intelligence community is the Central Intelligence Agency, the Defense Intelligence Agency, the Bureau of Intelligence and Research (State Department), the National Security Agency, the National Imagery and Mapping Agency, the military services’ intelligence staffs and centers, and other organizations within the Departments of Defense, Treasury, Justice, and Energy. Intelligence related to military efforts includes information at the strategic, operational, and tactical levels.

A group of blister agents that include sulfur mustards (H and HD) and nitrogen mustards (HN-1, HN-2, HN-3), which are considered derivatives of ammonia. Mustard agent can penetrate skin and many materials. Mustard agents are very persistent under cold and temperate conditions.^[63]