Protective action distances

Isolation and protective action distances listed below are taken from Argonne National Laboratory Report No. ANL/DIS-00-1, Development of the Table of Initial Isolation and... 

Brown, D.F., A.J. Policastro, W.E. Dunn, R. A. Carhart, M. A. Lazaro, W. A. Freeman, and M. Krumpolc. Development of the Table of Initial Isolation and Protective Action Distances for the 2000 Emergency Response Guidebook, Argonne National Laboratory Report No. ANL/DIS-00-1. October 2000. Buckles, L.C. and S.M. Lewis. "S-(2-Diisopropylamino-ethyl)0-ethyl methylphosphonothioate Stabilized with Soluble Carbodiimides," United States Patent 4012464, September 24,1965. Centers for Disease Control and Prevention. "Case Definition Nerve Agents or Organophosphates." March 15,2005. 

There are no published recommendations for isolation or protective action distances for carbamate nerve agents released in mass casualty situations. 

There are no published recommendations for isolation or protective action distances for these materials deliberately released in mass casualty situations. However, traditional isolation and protective action distances for most of these materials can be found in the Department of Transportation 2004 Emergency Response Guide (ERG). These recommendations are based on an accidental release during transportation of the material and involving a small spill (i.e., a commercial gas cylinder or 200 liters or less of liquid material), or a large spill (i.e., more than one gas cylinder, a large gas container such as a railcar, or more than 200 liters of liquid material). 

Initial Isolation and Protective Action Distances For Chemical Warfare Agents... 

A simplified downwind hazard assessment can be developed by plotting these protective action distances in the form of a map overlay. The initial isolation distance is the radius of a circle immediately surrounding the point of release where people may potentially be exposed to dangerous or life threatening concentrations of vapor. The downwind distances indicate the area of potential threat posed by vapors carried by the wind. The downwind threat... 

See the Table of Initial Isolation and Protective Action Distances in the North American Emergency Response Guidebook for highlighted substances. For non-highlighted substances, increase, in the downwind direction, as necessary, the isolation distance shown in the "Public Safety" section above. 

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