Spread of Cross-Border Pollution and Response Time for an Accidental Instantaneous Explosion and Continuous Leakage of Liquefied Chlorine

Cross-border air pollution from an instantaneous explosion and continuous leakage of liquefied chlorine was investigated using the SLAB model. The maximum allowable concentration of chlorine for short-term exposure and the maximum allowable concentration of harmful substances (for one-time exposure) in residential areas were selected as standards. Typical weather conditions used were D stability with a wind speed of 3 m/s and F stability with a wind speed of 1.5 m/s. The results show that the relationship between the quantity of explosive or leakage rate for liquefied chlorine and the spread of pollution satisfy power functions and that the relationship between the spread of pollution and the arrival time of pollution is linear. This study provides a basis for early warning of and emergency response to cross-border pollution from the release of liquefied chlorine.