The nuclear facilities including the nuclear reactors will produce the airborne radioactive substances consisting of radio-particulates (P), radio-iondine (I) and radio-gases (G), normally called PIG.

• 摘要反应堆等其他重要核设施所产生的气载放射性微粒物(P)、放射性碘(I)和放射性气体(G)，通常简称为PIG。