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s <br /> E® Emergency Response Plan <br /> M,L CO M MOIll I'I'I ES <br /> Safe distances and P/aces of refuge <br /> Safe distances <br /> Initial Isolation Distance and Protective Action Distance are useful to protect people from vapors resulting <br /> from spills involving dangerous goods that are considered toxic by inhalation (TIH). This provides first <br /> responders with initial guidance until technically qualified emergency response personnel are available. <br /> The Initial Isolation Zone defines an area SURROUNDING the incident in which persons may be exposed <br /> to dangerous (upwind) and life threatening (downwind) concentrations of material. <br /> The Protective Action Zone defines an area DOWNWIND from the incident in which persons may become <br /> incapacitated and unable to take protective action and/or incur serious or irreversible health effects. <br /> UPWIND Wind Direction DOWNWIND <br /> eel <br /> Protective <br /> Action Zone 1/2 Downwind <br /> Distance <br /> Initial <br /> Isolation <br /> Zone Downwind Distance <br /> 1/2 Downwind <br /> Distance <br /> Spill <br /> Source <br /> '7016 Emergency Response Guidebook <br /> Published by the U.S.D,2partmentafTranspnrtati3n—Pipeline and Hazardous Materials Safety Ad ministration <br /> P a g e 1 5 Safe distances and Places of refuge <br />