内容简介

二噁英是多氯代二苯并-对-二噁英(PCDDs)和多氯代二苯并呋喃(PCDFs)的总称，具有致癌、致畸和致突变的效应(三致效应)，已被列入《斯德哥尔摩公约》持久性有机污染物(POPs)的黑名单中。PCDDFs的来源主要是垃圾焚烧、化工生产、金属冶炼及精炼过程和造纸工业等。本书针对前人研究中存在的问题，选取毒性较强、气相分配比占80%以上的2,3,7,8-TCDD和2,3,7,8-TCDF作为模型化合物，主要研究了2,3,7,8-TCDDF与HOx、O3、NO3、Cl的反应机理研究，大气环境中OH自由基引发的2,3,7,8-TCDD和2,3,7,8-TCDF的氧化降解机理，以及PCDDs与OH自由基反应速率常数的QSAR研究

目录

1.INTRODUCTION1.1.PhysicalandChemicalProperties1.2.Toxiceffects1.3.Dioxinssources1.4.Concentrations1.5TransformationofPCDDFS1.6.Conclusionandoutlook2AtmosphericChemistryof2,3,7,8-TCDDF:Mechanism,Kinetics,andQSARStudy2.1Introduction2.2Computationalmethods
2.3Resultsanddiscussion2.4.Conclusions3MechanismforOH-initiateddegradationof2,3,7,8-tetrachlorinateddibenzo-p-dioxinsinthepresenceofO2andNOH2O3.1Introduction3.2Computationalmethods3.3Resultsanddiscussion4MechanismandKineticStudyonOH-initiatedDegradationof2,3,7,8-TetrafuorinatedDibenzo-p-DioxinsinAtmosphere
4.1Introduction4.2Computationalmethods4.3Resultsanddiscussion5QuantitativeStructure-activityRelationshipsStudyontheRateConstantsofPolychlorinatedDibenzo-p-dioxinswithOHRadical5.1Introduction5.2Resultsanddiscussion5.3Conclusion5.4Computationalmethods