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                             NBCD - 3

TOPIC:   Characteristics of Chemical Agents in the Desert

DISCUSSION:

Chemical agents dissipate rapidly in hot weather.  Hot air
convection currents carry agents upward, minimizing the vapor
hazard to ground troops.

LESSON(S)  LEARNED:

1.   G - Nerve Agent persistency is similar to water.  In hot
weather,  it will evaporate quickly but create a significant
short- lived vapor hazard.

2.   Mustard Agent persistency will be reduced with an increase in
winds.

3.   V - Nerve Agents hardly evaporate.  It is a touch hazard with
a long persistency.


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