摘要
Dangerous gases widely exist in modern production and people’s daily life.Once they are used or maintained improperly,they are very easy to leak,leading to major accidents seriously endangering people’s health and asset safety,such as fire,explosion,burns,poisoning,asphyxia,etc.In this paper,the data collected from CNKI was taken as the research object,and the relevant research in the field of leakage and diffusion of hazardous gases was analyzed through visual analysis by using the VOSviewer software,so as to provide reference for subsequent scholars.