Communicating in the First Hours
Chemical Agents

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This section contains information on four major categories of chemical agents that could be used as terrorism weapons to cause a health emergency. They are grouped according to their effect on the human body. These major categories of chemical agents follow:

  1. Blister (e.g., mustards)
  2. Blood (e.g., cyanides)
  3. Choking (e.g., chlorine)
  4. Nerve (e.g., sarin, VX agents)

This section includes:

For more information on these and other categories of chemicals, go to the CDC Chemical Emergencies website.

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