1. environmental reasons: the air quality in urban areas has been seriously polluted, and the processing and storage of waste products will aggravate the pollution.
2. Safety reasons: There will be fire, explosion and other safety hazards in the process of garbage disposal, which will pose a threat to the safety of urban residents.
3. Urban management reasons: Urban management departments generally stipulate the time and place of scrap purchase, and scrap purchase in urban areas will affect the overall image and management of the city.