污染土壤修复中应关注的几个问题  

Issues in Need of Consideration for Remediation of Contaminated Soils

作　　者：王晓蓉[1] 郭红岩[1] 林仁漳[1] 郑建中[1] 

机构地区：[1]污染控制与资源化研究国家重点实验室南京大学环境学院,江苏南京210093

出　　处：《农业环境科学学报》2006年第2期277-280,共4页Journal of Agro-Environment Science

基　　金：国家自然科学基金(20407012);江苏省自然科学基金(BK2004091);江苏省国土生态地球化学调查项目--江苏省典型水-土污染区的污染机理及修复试验研究

摘　　要：对如何解决我国土壤污染与农产品安全问题提出了几点意见。首先,应根据土壤污染程度不同采取不同的处置策略,对于中、轻度污染土壤可通过污染物形态的生物可利用性调控原理阻断、降低其生物可利用性,对于严重污染程度的土壤则要采取化学淋洗等方法,同时要注意修复过程中二次污染问题。其次,应加强土壤缓解机理、污染土壤对生物早期伤害的生态毒理学诊断和致毒机理方面研究,并在此基础上系统开展土壤修复基准及土壤生态安全评价体系研究。Several guidelines were proposed in this paper regarding the issue of soil contamination and safety of agro-products in China. First, appropriate remediation technologies and management policies should be developed in consideration of the soil contamination level. For soils with low- to middle-level contamination, bioavailability of pollutants can be inhibited or decreased by control or adjustment of the species distribution; for soils with high-level contamination, washing can be applied in remediation, however, re-contamination due to the use of washing agents should be avoided. Furthermore, studies in self-recovery, diagnosis of early damage to biomass, and mechanisms of toxicity of contaminated soils are needed in order to develop a systematic methodology for regulating remediation standards and evaluating the ecological safety of soils.

关 键 词：土壤污染 修复 生态毒理诊断 修复基准 

分 类 号：X53[环境科学与工程—环境工程]