◆ One is to establish a ledger. Since the special rectification, a total of more than 1,200 hazardous waste key supervision enterprises in the province have been carried out "anatomical" investigation and rectification, sorted out the problem rectification ledger, implemented the account number and carried out the "look back" in due course, and checked the 625 problems found Hidden dangers have all been rectified.
◆ The second is to deepen the investigation. On the basis of strictly implementing the requirements for comprehensive investigation and remediation, recently, we have successively carried out special in-depth investigations of coal tar and aluminum-related ash and slag enterprises, and a total of 67 coal-tar-related enterprises and 25 aluminum-related ash and slag enterprises have been inspected in the province. A total of 223 hidden problems have been discovered, and rectification is currently being carried out.