However, the vapor pressures of the G-series nerve agents are sufficiently high for the vapors to be rapidly lethal. GB is so volatile that small droplets released from a shell exploding in the air may never reach the ground. This total volatilization means that GB is largely a vapor hazard. G-agents are potent inhibitors of the enzyme acetylcholinesterase, which is required for the function of many nerves and muscles. The number and severity of the symptoms depend on the quantity and route of entry of the nerve agent into the body.
Nerve agents are cumulative poisons.
Repeated exposure to low concentrations, if not too far apart, will produce symptoms. It has the ability to resolve surface terrain down to 1 kilometer and the local perturbations of the wind field. Scud Liquid fueled, short-ranged ballistic missile with a crude guidance system. It also identifies the date and time of release. Also called source terms.