| 英文摘要 |
In order to speed up the management of sites with unknown polluters in China, the Ministry of Environment (formerly the Environmental Protection Agency) selected the Yongkang groundwater contamination site as a demonstration site with sufficient knowledge of past investigation and model site planning results, urgent need for remediation, and complex pollution zoning. Case study to establish a site management model for chlorine-containing groundwater pollution with unknown pollution perpetrators. Considering that the pollution area and concentration of the site will be difficult to fall below the domestic control standards in a short period of time, the Ministry of Environment (former Environmental Protection Agency) will carry out a phase 1 project plan to remove the main pollution sources from 106 to 110 years and achieve phased pollution control. In response to the country's implementation of sustainable management policies, this phase of the plan uses the results of health risk assessment and groundwater environment model numerical estimation to complete the hazard assessment and develop feasible long-term management plans for future sites, including risk reduction, isolation Exposure pathways, review of implementation effectiveness, rolling correction of corrective measures that do not meet expectations, and future management implementation directions. This project completed a total of 4 improvement results or maintenance data analysis in 2 years, and proposed that the site No. 817 in the Yankong Section of Yongkang District can be delisted as a groundwater control site. This project has completed the analysis of a total of 4 continuous pollution monitoring data, and proposed the scope of correction or adjustment for Yongkang groundwater contaminated use restricted areas, and proposed the implementation principles of long-term monitoring and attenuation management in the future. Complete the continuous accumulation of data on the site, and use statistical analysis tools to find out the parameters affecting the main components of the site improvement effectiveness based on the proposed site improvement period effectiveness analysis workflow, and complete the classification of domestic public sector investment in site remediation Management-related practice principles provide reference for future agencies to formulate management plans.
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