目录1前言..........................................................................................................................................11.1项目由来..................................................................................................................11.2环境影响评价的工作过程.......................................................................................21.3关注的主要环境问题...............................................................................................21.4环境影响报告书的主要结论...................................................................................22总则..........................................................................................................................................42.1编制依据..................................................................................................................42.1.1国家环保法律法规...........................................................................................42.1.2地方环保法规及文件.......................................................................................52.1.3技术导则及相关规范.......................................................................................52.1.4项目相关文件及资料.......................................................................................62.2评价因子和评价重点...............................................................................................62.2.1环境影响因素识别...........................................................................................62.2.2评价因子筛选...................................................................................................72.2.3评价重点...........................................................................................................72.3评价工作等级及评价范围.......................................................................................72.3.1大气环境...........................................................................................................72.3.2地表水环境.......................................................................................................82.3.3声环境..............................................................................................................92.3.4地下水环境.......................................................................................................92.3.5环境风险.........................................................................................................102.4环境功能区划及评价标准.....................................................................................112.4.1环境功能区划.................................................................................................112.4.2评价标准.........................................................................................................112.5环境保护目标.........................................................................................................143原有环评报告回顾................................................................................................................153.1工程概况................................................................................................................153.1.1项目基本情况.............................................................................