Chemical agents are poisonous vapors, aerosols, liquids and solids that have toxic effects on people, animals or plants. While potentially lethal, chemical agents are difficult to deliver in lethal concentrations because they dissipate rapidly outdoors and are difficult to produce.

Before a Chemical Emergency

A chemical attack could come without warning. Signs of a chemical release include people having difficulty breathing, eye irritation, loss of coordination, nausea, or burning in the nose, throat and lungs. The presence of many dead insects or birds may indicate a chemical agent release.

What you should do to prepare for a chemical threat:

During a Chemical Emergency

What you should do in a chemical attack:

  • Take immediate action to get away.


  • Seal the room with duct tape and plastic sheeting.
  • Listen to the radio or television for instructions from authorities.

If you are caught in or near a contaminated area outdoors:

    • Find the closest building to shelter-in-place.

After a Chemical Emergency



Decontamination guidelines are as follows:

  • Wash hands with soap and water.
  • Flush eyes with water.
  • Proceed to a medical facility for screening and professional treatment.