Why Do We Conduct the Study

Chemical industry is an important pillar of China’s economy. With the rapid development of economy, the industrial cluster development in chemical industry is gradually increasing in China, and the number of construction projects and construction chemical industrial parks either planned or under construction is also rocketing year by year (Dou et al., Journal of Loss Prevention in the Process Industries 60:35–45, 2019). By the end of 2017, chemical enterprises accounted for about 7% of the total number of industrial enterprises in China, and the output value of the chemical industry increased at an average annual rate of 18%. There were 502 national key chemical parks or industrial parks dominated by petroleum and chemical industry (Dong C Z. 2006. Study of Development Strategy of Tianjin Lingang Industrial District. Tianjin University (in Chinese)). Although the chemical industry cluster promotes economic development, it brings serious safety problems.