Carbamate nerve agents persistency

For military purposes, unmodified carbamate nerve agents are classified as extremely persistent. Agents have negligible vapor pressure and they will not evaporate. Depending on the size of the individual particles and on any encapsulation or coatings applied to the particles, they can be reaerosolized by ground traffic or strong winds. 

The topmost layer of unprotected feedstock (e.g., hay or grain) should be destroyed. The remaining material should be quarantined until tested. Carbamate nerve agents are very persistent and forage vegetation could still retain sufficient agent to produce severe effects... 

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