Mitigation systems are used to reduce the overall impact of an accidental release. The methods listed below provide varying degrees of mitigation from complete mitigation to unquantified partial mitigation systems. Mitigation of phosgene is difficult because of its chemical properties. The information provided in this section should not be considered as a directive or as an industry standard that readers must adopt or follow. Instead, the information is intended to provide helpful ideas and guidance that users may wish to consider in a general sense.