VX is a liquid which has the consistency of light motor oil. People in Washington state would most likely be exposed by breathing vapors released from the Umatilla Depot during an accident. Mustard may cause the skin to redden or blister. It can also cause irritation, redness and swelling of your eyes. Throat irritation, sinus pain and coughing are other effects that may be seen.
Death occurs only after exposure to a very large amount of mustard.
Symptoms usually appear 4 to 8 hours after mustard exposure, but may take up to 24 hours to appear. Exposure to GB and VX effects your nervous system. Symptoms appear within minutes after exposure to nerve agent vapor. Exposure to a tiny amount of vapor can cause pin point pupils, dim or blurred vision, eye pain, a runny nose and shortness of breath. Exposure to a moderate amount of vapor can cause muscle weakness, nausea, vomiting and diarrhea.