Upon responding to a 2:00 a.m. domestic transportation mishap your hazmat team fod outs that a liquefied compressed gas is leaking from a 5lb (2.3 kg) steel cylinder. The chemical commodity is explained on the relevant shipping paper as follows 5 lb RQ, Compressed gas, flammable, toxic, n.o.s. POISON - Inhalation Hazard, Zone B. Explain how would you identify and what is, the radius of the initial isolation zone as well as the magnitude of the each side of the protective-action zone associated with the release of this substance? Explain how would you handle the response and how would you determine the proper type of PPE to be utilized in this incident? Explain what type of PPE would you recommend?