目 录1 总 论........................................................................................................11.1 项目由来..............................................................................................11.2 评价原则..............................................................................................21.3 编制依据..............................................................................................31.4 评价标准..............................................................................................41.4.1 环境质量标准................................................................................41.4.2 污染物排放标准............................................................................41.5 评价因子、评价等级..........................................................................61.5.1 评价因子........................................................................................61.5.2 评价等级........................................................................................71.6 评价重点和范围..................................................................................71.6.1 评价重点........................................................................................71.6.2 评价范围........................................................................................71.7 保护对象..............................................................................................82 区域环境概况..........................................................................................102.1 地理位置............................................................................................102.2 地质地貌............................................................................................102.3 气象特征.............................................................................................112.4 水文特征....................................................................................