Chapter 1 Introduction 1．1 The Trace Metals and the Study History 1．2 The Objects of This Work 1．2．1 The Regional Trace Metal Behavior and Pollution Research Case 1．2．2 The Metropolis Trace Metal Behavior and Pollution Research Cases 1．3 The Methods of This Work 1．3．1 Sample 1．3．2 Analysis and Test of Composition 1．3．3 Simulation Experiments on Desorption and Sorption of Trace Metals from or on the Medium 1．3．4 The Speciation Analysis Experiment of Trace Metals 1．3．5 Analysis and Testing Precision and Quality Index References Chapter 2 The Regional Pollution of Trace Metals——The Hetao Area China 2．1 The Geochemical Setting of the Study Area 2．2 The Distribution of Trace Metals in the Soil 2．2．1 The Distribution of Total Concentration of Trace Metals 2．2．2 The Distribution of Speciation of Trace Metals 2．3 The Distribution of Trace Metals in the Groundwater 2．3．1 The Distribution of Arsenic 2．3．2 The Distribution of Cu，Zn，Cd，Sb，and Pb 2．4 The Distribution of Trace Metals in the Resident Hair of the Area 2．4．1 The Progress of the Research on Trace Metals in Human Hair as an Environmental Indicator 2．4．2 The Distribution of Trace Metals in the Resident Hair of the Hetao Area 2．4．3 The Relationship Between the Trace Metals in the Resident Hair and that in the Water and Soil of the Hetao Area 2．5 Study on the Isotope Tracing for Trace Metals in the Soil and Groundwater 2．5．1 Samples 2．5．2 The Distribution of Pb and Sr Isotope in the Soil and Groundwater 2．5．3 The Discussion of the Pb and Sr Isotope in the Soil and Groundwater 2．6 Discussion on the Distribution， Environmental Impacts，and Evolution Trends for Trace Metals in Soil and Groundwater 2．6．1 The Correlation of the Concentration Distribution of Trace Metals Between Soil and Groundwater 2．6．2 The Difference and Correlation for the Distributions of Trace Metals Between the Soil and Groundwater 2．6．3 The Evolution and Factors of the Trace Metal Pollution in Study Area References Chapter 3 The Metropolis Pollution of Trace Metals——-Shanghai and Nanjing， China 3．1 The Pollution of the Trace Metals in Urban Rivers 3．1．1 The Pollution of Trace Metals and Organic Matter （PCBs） from the Suzhou Creek， Shanghai 3．1．2 The Pollution of Trace Metals and Organic Matter (PAHs） from the Huangpu River， Shanghai 3．1．3 The Trace Metal Pollution in the Nanjing Section of the Yangtze River 3．2 The Pollution of the Trace Metals in Urban Lake， Shanghai 3．2．1 The Distribution， Pollution， Spatial， and Temporal Changes of the Trace Metals of the Dianshan Lake 3．2．2 The Coupling Relationship of Levels of Trace Metals， N，P，C，and Pesticides in the Dianshan Lake 3．2．3 The Implication from the Coupling Features of the Trace Metals， N， P， C， and Pesticides in the Sediment of the Dianshan Lake References Chapter 4 The Experimental Research on the Behaviors of Trace Metals 4．1 The Objectives， Research Idea， and the Approach Design for the Experiments 4．1．1 The Objectives of the Research 4．1．2 The Approach Design for the Experiments 4．2 The Simulated Experiments on the Desorption and Adsorption Behaviors of the Trace Metals in the Soil 4．2．1 The Simulated Experiments on the Desorption and Adsorption Behaviors of Trace Metals in the Regional Pollution Soil 4．2．2 Discussion on the Facts Revealed by the Experiments 4．3 The Simulated Experiments on the Release Mechanism of Trace Metals to Environment from Natural Substances Rock or（Mineral） 4．3．1 The Simulated Experiment on the Trace Metal Desorption from Particles (Rock， Mineral） at the Earth Surface Conditions 4．3．2 Results and Discussion References Chapter 5 Probing into the Speciation of Trace Metals and Research Methods 5．1 The Significance and Developing Trends of the Research on Trace Metal Speciation 5．1．1 The Concept of the Trace Metal Speciation 5．1．2 The Trace Metal Speciation Analysis Methods and Mechanisms 5．1．3 The Questions in Speciation Analysis of Trace Metals 5．2 The Pertinence on the Analysis Procedures of the Speciation Analysis for Trace Metals 5．2．1 The Speciation Analysis for the Trace Metals Dissolved in Water and Contained in Particulates 5．2．2 The Speciation Analysis for the Trace Metals in the Soil 5．2．3 The Method for Speciation Analysis of Trace Metals Used in This Work 5．3 Suggestions and Improving on the Trace Metal Speciation Analysis Procedures， the Method of Three-Step Speciation Analysis 5．3．1 The Meaning of the Method of Three-Step Speciation Analysis (Three-Step Procedure） 5．3．2 The Proposal of the Three-Step Procedure 5．3．3 The Comparison Experiments Between the Results Obtained Respectively from the Mainstream and the Three-Step Procedure Analysis Methods 5．3．4 The Significance and Application of the Three-Step Procedure Method on Trace Metal Speciation Analysis References Chapter 6 Main Conclusions and Perspectives on the Work 6．1 The Environmental Behaviors and Pollution of the Trace Metals in Area Pollution 6．1．1 The Case Studies of Trace Metals and Pollution in Soil and Groundwater 6．1．2 Formation Mechanism of Regional Trace Metal Pollution and Its Behavior in Related Media 6．2 The Environmental Behaviors and Pollution of the Trace Metals in the Modem Metropolises 6．2．1 The Behavior and Pollution of Trace Metals in Urban Rivers 6．2．2 The Behavior and Pollution of Trace Metals，in Urban Lakes 6．3 Some Significant Behaviors and Relative Features of Trace Metals in Environment 6．3．1 Major Differences and Relations Between Natural Trace Metal Pollution and Artificial Trace Metal Pollution 6．3．2 The Simulation Experiments on the Mechanism of Trace Metal Behavior and Pollution 6．4 The Probing and Improving on the Research Methods for the Trace Metals in Environments 6．5 The Perspectives on This Study References
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