Surfacing entity at the origin of the risk PPRT PRIMAGAZ in Dainville, Pas-de-Calais

The origin of the risk characterises the real-world entity which, through its presence, represents a potential risk. This origin may be characterised by a name and, in some cases, a geographical object locating the actual entity causing the risk. The location of the entity and the knowledge of the dangerous phenomenon are used to define the risk pools, the risk-exposed areas that underpin the RPP. In PPRTs, it represents the enclosure of the facility(s) classified for environmental protection (CEPI) at the origin of the risk analysed and addressed by the RPP. In the PPRT methodology, it is described as a grey area.

风险源（risk origin）指一类现实世界实体，该实体因自身存在而构成潜在风险。该风险源可通过名称进行表征，在部分场景下还可通过定位该风险实际致险实体的地理对象来描述。实体的位置与危险现象相关知识，被用于定义风险池（risk pools）——即支撑RPP的风险暴露区域。在PPRTs中，它指代RPP所分析与处置的风险源处的环境保护分类设施（CEPI，classified for environmental protection）的围合范围。在PPRT方法体系中，该风险源被描述为灰色区域。