| 摘要 | 第1-6页 |
| Abstract | 第6-8页 |
| List of Figure | 第8-9页 |
| List of Table | 第9-10页 |
| 1.Introduction | 第10-12页 |
| ·Physical-chemical character of pesticides | 第11-12页 |
| 2.Materials and method | 第12-17页 |
| ·Standards and reagents | 第12-13页 |
| ·Sampling sites and sample collection | 第13-14页 |
| ·Extraction and purification | 第14-16页 |
| ·Water sample | 第14-15页 |
| ·Suspended particle and sediment sample | 第15-16页 |
| ·Instrumental Analysis | 第16页 |
| ·Quality Control and Quality Assurance (QA/QC) | 第16-17页 |
| 3.Results and Discussion | 第17-30页 |
| ·The levels and distribution of OCPs in water, particle and surface sediment | 第17-26页 |
| ·The concentration levels of OCPs in water, particle and surface sediment | 第18-20页 |
| ·The distribution of OCPs in water | 第20-22页 |
| ·The distribution of OCPs in the suspend particle | 第22-23页 |
| ·The distribution of OCPs in surface sediment | 第23-24页 |
| ·Compositions of DDTs and HCHs isomers in surface sediment | 第24-26页 |
| ·The levels and distribution of PCBs in water, particle and surface sediment | 第26-30页 |
| ·The concentration levels of PCBs in water, suspend particle and surface sediment | 第26-27页 |
| ·The distribution of PCBs in water and suspend particle | 第27-28页 |
| ·The distribution of PCBs in surface sediment | 第28-29页 |
| ·Compositions of PCBs isomers in water and suspend particle | 第29-30页 |
| 4.Conclusion | 第30-31页 |
| 致谢 | 第31-32页 |
| References | 第32-38页 |
| 附录A | 第38页 |
