Research on the Evolution Path of Public Opinion in Environmental Emergencies

In recent years, environmental emergencies have spread rapidly on the social media, causing public concern. This study takes “3.21” accident in Xiangshui, Jiangsu as an example, and obtains 46, 265 Weibo comments by using Python program. After data preprocessing, 7740 were obtained. The evolution stage of opinion about accidents is divided into outbreak period, temporary decline recurrence period recession changing characteristics attention. uses sentiment analysis model LDA theme extraction to analyze emotional each stage, tendencies Theme Evolution law Jiangsu. Studies show that attention decreases from increases slightly lowest stage. Public susceptible derivative events throughout opinion. If are encouraging such rescue rescue, proportion positive emotions will increase. negative corruption, research conclusion provides theoretical support for establishing response mechanism emergencies.