阻燃剂和重金属Cd在电子垃圾拆解场地和附近土壤中污染严重，四溴双酚A和得克隆为目前世界范围内使用量最大的溴化阻燃剂和氯化阻燃剂代表种类，属于新型POPs污染物，对“土壤-植物”系统中有机污染物阻燃剂和重金属Cd复合污染物的归趋和毒理效应的研究具有重要的意义。本课题拟选择这两种典型阻燃剂和重金属Cd为研究对象，利用高等植物毒性试验和土壤染毒方法，研究阻燃剂和镉单一及复合污染对植物的急性毒性效应。拟选择不同品种的水稻和超积累植物黑麦草为模式生物，利用盆栽试验方法，研究两种阻燃剂和重金属Cd在不同品种水稻内的迁移、转化和积累规律及其对水稻的毒性效应机制，筛选出低积累水稻品种；探讨黑麦草对阻燃剂四溴双酚A和得克隆单一和复合污染胁迫的响应和富集能力及其植物修复对土壤结构和土壤生物的影响。本研究为评估对食物链的潜在暴露风险具有重要的意义，为受污染土壤生态毒性评价和黑麦草修复受污染土壤提供科学依据。

Organic pollutants flame retardant and heavy metal Cd are the most serious polluters in the soil of the electronic waste dismantling field, two kinds of typical flame retardant such as Tetrabromobisphenol A (TBBPA) and Dechlorane Plus (DP) were the representative species of brominated flame retardants and chlorinated flame retardants which were the maximum amount of the worldwide used respectively, and they belong to a new type of POPs pollutants, its residue existed in the electronic waste dismantling the venue and its soil nearby, the pollution and destruction of the soil-plant system are becoming more and more serious，It has very important significance that the research of fate and toxicological effect for organic pollutants flame retardants and cadmium in the soil-plant system. The two typical flame retardants and heavy metal Cd were chose as the research object, using the toxicity test of higher plants and soil exposure method, to study the effect of acute toxicity on the higher plant by the single and combined pollution of flame retardant and cadmium. Different varieties of rice and hyperaccumulator ryegrass were selected as model organisms by pot experiment method, through the study of soil-plant system, the regular patterns of the migration, transformation and accumulation of flame retardants and heavy metal Cd in the different types of plants are discussed, and the mechanisms of toxic effect on the organisms under the conditions of single and combined pollution are explored, and the varity of low-accumulating plant rice and were selected. The response and accumulation ability of ryegrass to pollution stress and the effect of phytoremediationon on soil structure were investigated. Through the study, the toxicological effects of two typical flame retardants and heavy metal Cd on different types of plants are revealed, and it is very significant that the risk of potential exposure to the food chain is assessed, and it provides scientific basis for the ecological toxicity assessment and the remediation of contaminated soil by ryegrass.