污染土壤修复、诊断与标准体系建立的探讨

针对我国土壤污染的严重性和复杂性，认为污染土壤的植物修复技术因存在修复后植物处置困难及转基因植物的生态风险及可能带来的环境问题等将会严重影响该技术的推广应用，建议加强污染土壤化学修复技术研究，并提出我国现有土壤环境质量标准已不能满足污染土壤诊断及修复尤其是化学修复效果的评价，迫切需要建立相应的能反映污染土壤修复状况的生态毒理诊断方法和标准技术体系。

Issues Concerned with Remediation Technology, Diagnosis Methods and Standards for Contaminated Soils

Several issues about remediation technology, diagnosis methods and standards for contaminated soils were discussed in this paper. The authors also mentioned existing problems and concerns that disposal or reuse of phytoremediating plants could result secondary pollution of the environment by incinerating, compressing for land filling, composting, etc. Improvement of plants by genetic engineering opens up new possibilities for phytoremediation, But it is also very important to realize that the ecological risk and the possible environment's problem of transgenic plant.So the application of soil phytoremediation technology will be limited. It is useful to develop appropriate chemical remediation technologies of contaminated soil. In addition, The diagnosis of soil contamination is one of the most important component parts in soil remediation processes. However,the diagnosis using only chemical methods could not express and demonstrate the holistic characteristic of soil quality. It is thus necessary to develop eco-toxicological diagnosis methods, and a systematic methodology for regulating remediation standards and evaluating the ecological safety of soils needed to be developed, based on the analysis of the disadvantages of Soil Environmental Quality Standard.