Why did Dezhou City, Shandong Province completely ban fireworks and firecrackers?

General public and commercial households:

According to the "Regulations on the Administration of Fireworks and Firecrackers in Dezhou City", fireworks and firecrackers are completely prohibited in the following areas of Dezhou City: (1) the sub-district office under the jurisdiction of Decheng District and the area south of Debin Expressway in Ertun Town; (2) The area under the jurisdiction of the Economic and Technological Development Zone; (3) The area under the jurisdiction of the Canal Economic Development Zone except the south of the south outer ring of Zhaohu Town and Taitousi Town; (four) the scope of Lingcheng District and county (city) city shall be delineated and promulgated by the people's governments of Lingcheng District and county (city).

In the area, place and time where fireworks are prohibited, or in a way that endangers the personal and property safety of the public, the public security organ shall order it to stop the fireworks and impose a fine of more than 300 yuan and less than 500 yuan; Those who violate the administration of public security shall be punished according to law. If fireworks and firecrackers are set off during the early warning period of heavy pollution weather, the public security organ shall order them to stop setting off and impose a fine on 500 yuan; Those who violate the administration of public security shall be punished according to law.

The Regulations on the Administration of Fireworks and Firecrackers in Dezhou stipulates that fireworks and firecrackers shall not be sold in areas and places where fireworks and firecrackers are prohibited. For those who sell fireworks and firecrackers in areas and places where the discharge of fireworks and firecrackers is prohibited, the emergency management department shall order them to stop the illegal act, impose a fine of more than 20,000 yuan10,000 yuan, and confiscate the fireworks and firecrackers and illegal income; If it constitutes a violation of public security administration, it shall be punished according to law; If a crime is constituted, criminal responsibility shall be investigated according to law.