Definition - What does Blood Agent mean?
A blood agent is a toxic chemical agent that gets absorbed into the blood. They are absorbed very quickly, and consist of potentially lethal poisons. At room temperature, they are volatile colorless gasses, only giving off a colorless odor. Blood agents are ingested or inhaled, and are especially toxic in confined spaces. Cyanide and arsine gas are both blood agents. Arsine gas is created when arsenic comes in contact with a gas.
Safeopedia explains Blood Agent
Blood agent poisoning symptoms vary according to the duration and concentration of the agent. A blood agent that is based in cyanide causes irritation to the eyes and respiratory tract. Arsine based blood agents do not cause these effects. Exposure to small amounts of cyanide will have no effect, whereas higher concentrations lead to dizziness, nausea and weakness. Long term exposure can cause brain damage, and muscular paralysis. Strong exposure leads to death.