S202线平昌至涵水段公路改建工程项目环境影响报告书(送审件)建设单位:平昌县公路养护管理段评价单位:西南交通大学环评证书:国环评证乙字第3232号编制日期:2013年6月S202线平昌至涵水段公路改建工程项目环境影响报告书目录目录前言..............................................................................................................................I1.0总论..........................................................................................................................41.1项目建设的必要性.........................................................................................................................41.2评价目的.........................................................................................................................................71.3评价依据.........................................................................................................................................71.4评价标准.......................................................................................................................................111.5评价等级、评价范围和评价重点...............................................................................................131.6环境保护目标...............................................................................................................................141.7评价预测时段...............................................................................................................................161.8评价方法.......................................................................................................................................161.9产业政策与规划符合性...............................................................................................................172.0工程概况与工程分析............................................................................................222.1工程概况.......................................................................................................................................222.2工程分析.......................................................................................................................................533.0环境概况................................................................................................................713.1自然环境概况...............................................................................................................................713.2社会环境概况.............................................................................................................................824.0环境现状调查与评价............................................................................................874.1生态环境现状调查与评价...........................................................................................................874.2声环境现状调查与评价.............................................................................................................1034.3大气环境现状调查与评价.........................................................................................................1054.4地表水环境现状调查与评价.....................................................................................................1085.0环境影响评价.....................................................................................